I was a Designated Marksman with 3rd ID in 2005. I had an old school M14, but we just got upgraded versions of the M16A4 that had been heavily modified for DM use. Heavy, free floating barrels with better triggers and optics. I spent time on the range with in in Kuwait and found 600m was about the max range. After that it stared to get squirrelly. But, in October of 2005 we got into a firefight with the Maudi militia near a palm grove in Sadr City. We were up on a river bank. I had a nice elevated spot proned out across the back of one of the HMMWVs and had a spotter calling out targets. Some of the shots I took that day were well beyond 700m and I got confirmed hits farther than that. While I never got to see the aftermath, I did watch some of the fighters drop from the 5.56 rounds they caught. So I can tell ya, that Specific day under those conditions, it got the job done. RIP Spc Sergio Gudino KIA 25Dec 2005.
Sounds like you had a M16A1 converted to the MK12 Mod O or Mod 1. I have a Mod 1 that will carry 77 grain S&B to 2850 FPS and go transonic past 1000 yards here in the mountains. The guns are incredibly capable!
@@tcbk1234 Nah, at that time Around 2005 the MOD 1 and MOD 0 wasn’t around just yet. The army had its own DM project. You can look it up on google and you’ll see pictures of 3rd ID soldiers carrying them. They looked exactly like A4’s…. Only you’d have to be holding one and look at it up close to see it was modified.
I’m not a physician. Just a nurse practitioner, but I’ll take a crack at answering your question. The ribs cracked due to the torsional forces. Yes hydrostatic force is a thing. Colleague of mine died of multiple areas of bleeding from a single gut shot from .357 magnum at point blank range. Our two best trauma surgeons couldn’t save him. 17:06
I would think a 357 at point blank range would be more dangerous than the 556 at distance but either way I wouldn’t want to get hit with either. Sorry to hear about your colleague.
@@thomasdalton7987 Yup. 357 Magnum from a 6 inch barrel can be around 900 FPE. 5.56 usually sits around 1,000. From a rifle, 357 Magnum can be ~1,700 FPE, hitting, and can be within 400 FPS of 308, using a 158 grain to the 308's 155. You could even chuck a 150 grainer at 2310 FPS from a rifle, though that's an overpressure round, and should only be used in rifles or large framed Rugers. That's 228 FPS short of 308 with a 5 grain lighter projectile, but also, a wider one. A 158 grain 357 Magnum projectile traveling at 2153 FPS from a rifle has the same TKO factor as a 155 grain 308 due to it's larger diameter. 44 Mag is a step up even still, but won't shoot as flat as 357 Magnum.
In a odd twist my drunk uncle got into a argument and his friend shot him from 3 ft away in the stomach. It passed straight through and never had time to expand. He survived 🙌 crazy how one person lives and another dies.
Well... They really didn't have to take it out to 1000. A ballistics test is focused on the round, so you really don't have to take it out to distance. They could have done this with a series of increasing velocity hand loads to simulate the velocity of a given round at x distance, or done the same thing by firing the round through different barrel lengths. What 5.56 does out of a 10" barrel within 25 meters is what it will do out of a 16" at 250isb and out of a 20" at 300ish. We know how much velocity we're gonna lose at a given distance for different loads. At that point, it's just plug and play math.
@brianzimmerman4837 it's different, you have to consider the path of the bullet when that far away, it's going to be coming at a steeper angle instead of basically straight on when close up, it'll have different velocity by then, etc
@tylerc7336 Well, the angle of travel can be taken onto account with a ballistic calculator. The velocity of the round at a given barrel length distance can be taken into account with a velocity chart. Just have the different loadings, and fire them in sequence. Hell, make them in triplicate, do a chrono, block, then dummy test within 25 meters. It would have been easier, and the environment of the test would have been more controlled and repeatable.
There's a lesson here that I'm not seeing anyone else mention here: WEAR YOUR DAMN PLATES. Every killshot taken here could have been stopped by Level III body armor. Maybe even Level IIIA at 700 (Not recommended). If you have a plate carrier, get good plates. We lost some Rangers in Mogadishu Somalia because they didn't take their plates.
Agreed. Definitely puts into perspective how life saving body armor would be. L3 or L4 would have handled these shots at these ranges and I suspect in a real war you will be exposed to shrapnel that will have similar lethal properties as 5.56 at a thousand yards and those plates and helmet will keep you alive.
@@LastAmericanOutlawgreat video 👍 the only thing extra i would have liked to see is you going for the 1000 yard head shot with a more precise plataform like the ruger precision 556 bolt rifle or a nother 556 cal bolt rifle too see if the round could penetrate the skull at that distance
@@LastAmericanOutlawI agree I loved it! Can we do more terminal effects at distance with various calibers?! PLEASE.... 😊 Few test at these ranges. Mk12 Mod1 / Mk18 btw is my goto. Easy to pickup ammo and tack driver for bad times. Great shooting both of you.
I have no idea why other tubers who utilize these ballistic dummies haven't done this. Great work for what I believe is the first person to show us what we've been waiting for.
Because the probability of you actually shooting that far is extremely slim to none. Especially with 5.56. When there are many other cartridges that’ll work way better. Personally I wouldn’t use it past 600 yards because I live in a city. But my country AR is 300 WM so.. Really depends on your location and what you’re using it for. Military applications obviously are different with war and all that.
@@MigaziiThat's fair. But it's super rare that guntubers even go to 100 yards consistently. Hard to explain the disappointment when I constantly hear "alright here we are at 7 yards" with an ar15.
@@godwarrior3403that’s for real though. Like I always seen them testing different rounds and they are basically point blank. I’m like I want to see what does at like 100-300 yards. I already know what it does if someone gets blasted Han Solo style across the kitchen table.
@@InkwellFoto Same. Ultimately he's got a job to, and a life built up that takes real funds to keep up. He's gotta do what the majority wants. We gotta outweigh those who just wanna see instantly gratifying ballistic dummy results haha
I am a CMP-USAMU Military Rifle Instructor assisting USAMU deliver SDM, TTT, and SAFS Training . I have used my SDMR build in NRA Long-Range Competition and find shooting this sort of rifle at 1000 yards and hitting where aimed is mostly about getting the correct hold for wind. Even shooting 80 grain Berger’s using an MOA wind constant of 10 just a 1 mph full value crosswind will displace bullet about 10 inches. So unless you have the skill to discern minuscule wind changes good hits with the 5.56 at 1000 yards is very difficult. I am US Distinguished Rifleman, as well as American High Power Rifleman in Long Range Award Winner but so far average score with a 5.56 at 1000 yards is just 94% on the NRA LR Target.
yup...not sure if they mentioned their velocity, but a 77 gr Berger OTM leaving @ 2700 fps will move ~15" for every 1 mph of x-wind... so, a 5 mph gust or drop in wind means ~6 feet left or right miss!! A fair amount of luck involved, considering time-of-flight is almost 2 seconds...the wind can change a lot in that amount of time and over that distance.
@@ShastaBean interestingly enough, a shooter can use an MOA wind constant of 10 when shooting Mk262 from an M16A4 to 500 meters for good wind favors. Teaching the SDM course I find this constant is good though 600 yards although ballistics table suggest using an MOA constant of 8. In CMP EIC competition I use MOA wind constant of 10 at 300 yards shooting 77’s and a constant of 10 at 500/600 yards shooting 80 grain Berger bullets. Many years ago I shot a 200 yard miss in an EIC Match at Camp Atterbury and thus I thought there was no means for me to win the tournament. In the 300 prone rapid stage I adjusted for a 10 mph cross wind from a mid range reading and I shot a 99, then at 500 I I adjusted sight again using MOA constant of 10 and shot a 197. I still ended up with a poor score, I think 474 x 14 yet finished in second place for 8 leg points because I was only one of about 40 shooters who took wind reading at mid range rather than at firing point. Seemed to me perpendicular burms down range were changing the direction of wind and I was right about it. All other shooters lost a bundle of points at 300 and thus that put me back in the game unexpectedly. Fun stuff.
@@charlesludwig9173 You have far more experience than I do. I've only scratched the surface on LR shooting. But a fair amount of time altering variables on the Berger & Hornady online calculators. Great tools! The range I go to is typically windy with it being gusty and swirling. I've factored the wind at the bench, only to walk out to 100 yard target and it's going the exact opposite direction. Really puzzling to figure out. Probably also affected by berms. When my anemometer goes from 4.2 to 12.7 every 3 seconds I do question how anyone can even make a predictable shot. Yesterday I stepped off the back porch and it was 1.1 to 7.6 and back again all within 5 seconds. I spent most of my adult life on the golf course and driving range, rather than the shooting range. But same thing - wind!!! I get it all worked out in my head, and aim a shot to start out over the water, then it flips direction in the middle of my downswing! & SPLASH!! haha!
I was talkin to a buddy about this very same thing. It only takes 90 ft/lbs of pressure to penetrate the body, and what I’ve read 5.56 has substantially more pressure behind it than that at distance. My thought process was, it might not kill you at that distance but it would sure take you out of the fight. Glad to see someone finally tested it.
Outstanding!!!! 5.56 is capable, especially if you're using a proper 16-20in barrel to get that optimal spice out of the round, just gotta know your rifle and work the environmentals.
Went through Designated Marksman school and based on what I was told there there's a lot of dudes pushing up daisies cause of the Mk12's capabilities at 800yds+
We nailed tons in GWOT at extreme ranges. One guy was court marshalled as he was taking under arm shots sideways at 400 yrds or so and next morning the field was full of bodies. They all never knew what hit em, company plus of em, with a single NV scope and a supressed Mk12. He was NOT found guilty once they figured itmout and heard the story but they had thought he was executing them all. Mk12 is no joke.
Yes confirmed 7 talibs from my mk12 gunner. We used to call it a glorified m16 until we saw it in country lol. Those match grade rounds with the hollow tips will remove heads also. Seen it on just a dog at close attack range but nonetheless it was devastating.
Correction to the medical comment made at 600 yards… A decompression needle lets air out of the chest cavity that is compressing the lung, a tension pneumothorax. Blood in the lung/chest cavity, a haemothorax requires a chest drain, which requires serious medical knowledge and skill and equipment. Even worse than that would be a haemopneumothorax - Blood and air in the chest cavity. Just thought this was important to clarify, so that people don't misunderstand the effect of a decompression needle. Great video though, really interesting testing.
Never taking a shot from that far is what it is. With that being said, knowing what your rifle and cartridge combo is ACUTALY capable of is always a good thing. I would never take a 1k shot with my hunting rifle at deer, but I have verified dope out to 1k yards because I like knowing what my equipment is actually capable of doing.
The 5.56 long range game is VERY technical! From the hand loaded 90 grain bullets through a 20" 1/7 twist match barrel, the first year the Army brought them to the 1000 yard line and absolutely crushed it, it was game on! It will do the job at 1000 yards.
Can a 1 in 7" barrel twist stabilize a 90 grain round ? I know the 1 in 7" was made for the 62 grain all the way up to 77 grain. Never heard of people firing heavier than that from a 1 in 7" twist barrel.
@@fanman71yes the 1:7 twist is designed for heavy bullets, and does better the heavier you go. Most civilian rifles are 1:8 or 1:9 bc they’re geared for civilian ammo that’s usually 55 gr target 223 rounds. It won’t be able to stabilize the heavier round but the 1:7 will love it
Finally…. Been waiting for someone to do this exact test with a ballistic dummy at distance. Don’t know why it’s taken the community so long to put this out there! Good job fellas!
I once saw a guy hit a 950 yd shot, center mass. Both of us to this day (35 years later) do not know how he did it. No special equipment with a standard low power scope and 5.56mm. It was right on a dusk with sun behind us. It was that time of day when it is starting to get cold. We had just set up our OP, I then finished calling distance on and windage when and I said to send it. As it was a cold bore we expected to have to correct. So when I called it we both thought I had called it wrong. But the instructor told us that it was a correct call. I was a better shot coming up through the course, but he was luckier. I still remember the lesson we both learnt from the instructor that day; it's better to be lucky than good. Our instructor said that the enemy may not have the best training or the equipment, but Murphy can strike at any moment and the enemy can be lucky too. So train harder and make sure they don't get a chance to be lucky. Of coarse we could reach out beyond a 1000 easily, especially with the right equipment (not 556), but regardless of if we saw enemy or not, we made sure to make it almost impossible for the enemy to get lucky.
I've had this debate for years with civilians who seem to only know the 500 yd reachability of the AR platform. Yet they don't understand that there is a difference with military ammo and civilian grade ammo and I'm not talking about just grain differences. You CAN "reach out and touch someone" to 1200 yds on a GOOD day!!! And for us who went through basic training and Infantry AIT in the late 80s, we not only had BRM but ARM as well, trained and qualified in ALL westher conditions and it sucked in GA and in the winters and falls.... We had to hit targets both stationary and moving that popped up moving forward and backwards and side to side at distances out to 800 meters. We had to do it with the M16A2s with iron sights, M60s and M240s as well and M249s and also at night. Not including qualifying with the LAW, MT4s, Dragons, TOWs and some of us Javelins. So when it comes to understanding ballastics of .556 and 7.62 rounds, stop thinking it's not possible to get out to 1k yds... It is!!
I don’t think that’s the issue I think it’s more they wouldn’t be shooting at someone that far with 5.56 when there are better calibers that can be used. Me personally 5.56 wouldn’t go past 600 yards because I have a larger caliber for that. I live in a city so the probability of pretty everybody here shooting someone at even 500 yards is quite slim. If not none. Obviously war is different. Like I can easily shoot past 100 yards with my pistol but I’d rather switch to the 5.56 or 300 blk. Or even 308. Don’t have any AKs yet. But even with MY 600 yard cutoff I highly doubt I would even shoot past 200 yards. Unless I’m holed up somewhere but that’s a whole other topic. Point is there is better rounds to use then 5.56 past a certain yardage.
There is a difference between "reachable" and "reliable". 1000 meter shots are reachable with that round. Hell, a 22LR will travel more than a mile, there is no reason to think a 5.56 wouldnt also travel that far. The key however is at what distance do hits on stationary targets drop below a 95% hit rate? 80%? 50%? That is the real question. Yes, it will travel beyond "effective ranges" but when it comes to practical use there is a distance where taking a shot is statistically wasting ammo.
Great post. The bottom-line is training makes it possible to hit a point on a mark at a further distance than could be engaged by a lesser trained shooter. This is proven in NRA Long Range Service Rifle Competition where USAMU Shooters win and ALL others loose, coming off the firing line with a better sense of reality concerning their shooting knowledge and skills.
I believe what happened to the ribs was the shock from the impact separated the Costal Cartilage from the rib bones at the Costochrondral junction. You have the Sternum center chest, then you have Costal Cartilage that runs from the Sternum to where you saw those "breaks", and that is where the Costochrondral Junction is, It's where the cartilage ends, and from there to the spine would be the actual rib bone. I've found that most people don't realize that the majority of the chest area back to where your sides start, isn't rib bone, it's costal cartilage. And most of the time when someone "breaks" a rib, It's actually not a "break", It's a separation of the cartilage and rib bone at the Costochrondral junction. It's easier to understand if you search "Costochrondral junction" and look at the images.
@@janicejohnson1334get rid of all of it and buy copious amounts of mk262 brother, far better round, barrier penetration isn’t much different. The pros far outweigh m855s slightly better barrier penetration. SMK bullets shoot great, as you see they have good ballistics, there are some clones of black hills og round that are cheap for what they are, if you’re a hunter they work great for that too, if you want to make this kind of shit and gave good ballistics that heavier round that brings more fragmentation is a must.
You can't get it out that far. Also, I haven't found any 55 grain ammo that stays accurate after going subsonic. IMI 62 GT can reach out to 800 yd with about 2.5moa groups though.
It can 💯 percent get out to 1000 yards. It will be subsonic and have less than 100 ft lbs of energy but so is a 22lr and plenty of people are dead from getting shot with a 22
I was studying terminal ballistics at age 14. I didn't have any big guns yet, only a 22 caliber air rifle. But I made my own custom hollow point pellets for it, and tested them in different mediums. They were gnarly.
As a UA-cam Dr and V veteran navy corpsman I'd definitely say the damage is impressive (love 16in & up ar's) but yeah we can fix it, especially those shoulder shots. We just use a metal plate like many other bone crushing injuires. My biggest complaint about 556 at that range is reliable precision (from the average person) and people thinking that lethality is the same from a 10.5 and a 18-20in barrel. But anyway love the video, amazing work, thanks for doing it. Any other calibers you jumping into in this format?
@@brandongibbs3016 Only one minor artery in the clavicle area. Easily treatable from my side of the field. Untreated your definitely screwed. But that's what ifaks are for if you don't have 1 you better get one.
Thanks so much for this awesome test! If you ever decide to do a Pt. II etc, here are some calibers I think would be interesting to see at various ranges! -6mm ARC -6.5 Grendel -6.8 SPCII -6.5 Creedmoore -6.8x51mm Common Cartridge (.277 Fury, the Army’s newly adopted cartridge) -7.62x51mm NATO -.338 Lapua or Norma Magnum -.375 Cheytac
Doctor here! not a trauma surgeon though. I think the rib fractures are mostly from the initial chest shots, however the shoulder shot likely contributed to the worsening displacement of the rib fractures and bleeding.
Thank you for this video! I've had this debate with other shooters since 1979. When I was 16 I lived in Texas and in '79 I had done some work for a man. The short story is that part of my payment was a rifle. An Armalite AR-180. The civilian version of the AR-18. Anyway after firing it for years I had no doubt that 5.56 could be lethal at 1,000 yards. I've never attempted a shot at that distance but I have fired at 500 yard targets and knowing what it can do at that distance I always believed it would have potential lethality at 1,000 just because the velocity is so high. Thanks again for this video and your channel. I love the video short clips. P.S. I've never owned a Glock until last year and thanks to your vids I now have corrected my grip and my accuracy has improved especially on follow up shots. Very cool.
All these modern, obscure ammunitions that lead to entire forums with guys arguing and swearing up and down about how their favorite round is superior. All of my ARs are chambered in 5.56. It’s proven, cheap and readily available. And last time I checked I wasn’t planning on getting in a gunfight in the Great Plains.
Dr. Gibbs here, they could have been fractures from the previous lung shots. The contrast with the internal bleeding made them visible. It would make more sense the shock to lung fractured those ribs with the expansion of the cavity.
Also you have to think about that shot at 800 again, while still not lethal, the dummy is missing the humerus which would likely have been hit and caused more fragmentation.
Dec31, 1944 my grandfather took a “sniper” bullet below the right clavicle and out the shoulder blade. He was able to use that right arm. He did have pain and soreness. Often starting his mornings by using a handheld massager to loosen up, these memories are 40 years after.
It was designed to penetrate a 10 gage helmet at 500 yards. I'm just learning to get some distance with a 4x16x50 . 75 OTBT MATCH . Nice job Guy's 👍 800 is LONG WAYS OUT ! Channel called "Mountains, Mullets, Merica !". He shows near & far zeros and GREAT L O N G RANGE , With different calibers . Yep gotta have weight to carry velocity and co-efficiency boat tail
75gr-77gr handloads makes this caliber night and day different at range over 55gr or 62gr projectiles. So many nay sayers that never shoot past 100 yards out there
75-77gr is all i have for defense and yote rds. But thats not to say that unarmored targets getting a varmint rd within 300 yrds wont see some serious damage lol. 53gr vmax destroys the insides of things in those closer ranges, pure soup.
I have a 24' heavy contour 1/8th. Heavy ass rifle for a 556 caliber but it will punch out to 1000 yards. With scope, full mag etc, Its sitting at around 18 lbs. The barrel alone is where all my weight is sitting. I slapped a tank brake on it and literally zero recoil with it and the overall weight. I never could tell what damage it might cause at that distance or even 600yards+. Its really nice to see folks test this caliber out to these ranges with ballistic dummies.
75gr matchkings are far superior than the green tips that were mainly used by infantry in the GWOT. All of the reports of underpowered 5.56 were mainly from m855
Yep m855 was the worst performing round the military adopted. Horrible terminal performance. Even at just 100 yards it will pencil through or wont tumble until 6+ inches in. At least m193 fucks at 200 yards and in consistently. Add in the rounds design with having a steel insert so its not concentric and you end up with lacking accuracy too.
@@Nick-sx6jm m855 isn’t consistent enough to generalize like that. Some yaw within a couple inches of penetration, some go 6-10” before yawing. This obviously leaves a lot of folks saying they shot folks and saw no reaction and other folks saying the round is a vicious meat axe.
Remember, ballistic gel is not a 1 to 1 comparison to live tissue, so real life performance would probably not have as much penetration (look at FBI ballistic gel test, where a BB should penetrate roughly 3 inches in gel). That said, these torsos are about as close as we can get with organs/bone/tissue. I really appreciate this video! I have been looking for this type of video for months 🙌
Gel isn't even meant to replicate human tissue, tissue is just WAY too variable, even within a single person's body, let alone from one to another. What it's for is creating a standard method of testing to compare one set of variables to another (like 9mm vs .357 mag through a sheet of car glass, that sort of thing).
I've shot alot of distance with 5.56, 16 inch barrel, with Seals at Sawmill in NC, and realized 600 is pretty do-able, much more than that, and consistency went away. I have a buddy with a 20 inch barrel 5.56 and he can consistently get 1000 yd impacts, but there's not much left at that point. I've seen him hit out to 1250 with it numerous times, so it is doable. He's a much better shot than the majority of folks for sure... its about all he cares about....lol.
When we were issued the M16A2 in 84'. We were also given the hotter FMJ round. Shooting at 600 yds. USMC Kaneohe Bay Oahu. Don't remember the hotter round nomenclature, but you could tell from firing. It kicked a little more! We even used the three round burst at 600yds. Shooting in the prone position using standard iron sights. I shot black all day, hitting the heart. All three rds. In the heart! Reach out and touch someone! Semper Fi!
So going back and watching this video , i think i identifed the issue . You failed to utilize the sniper button . Great video as allways keep'em coming .
I love the long range content. Most all rounds should be effective at "defensive" ranges. This is a video I've been wanting to do on my own since no one else on UA-cam has done it. I don't have the capital to make it happen right now. I'm glad someone finally did it. Thank you! I hope you have plans to do other calibers as well. I will definitely be tuning in for the entire 30+ Minutes.
I was in BCT at Fort Knox, KY in late 2000. Fort Knox was different in those days, it also held OSUT for tankers and cavalry scouts. Some Marines also trained there. I understand it's changed since then. At any rate, during basic training we shot our rifles for a solid week to get the feel. Before actual qualification, the rifle range had popup targets out to 800 meters (≈874 yards). This was with government M16A2 and its default sights. Our rifles were zeroed for 400m, so to hit center mass closer than that we aimed below, and to hit center mass further than that we aimed above. I knocked down quite a few popup targets with rifle #12 at C. co 2/46 at all the distances presented to me. For qualification day all targets further than 400m were turned off. The long range stuff was practice for "hypothetical scenarios" or maybe as a way for the cadre to see who had a good skill set.
*THIS IS WHY LONGER BARRELS ARE KING!!* Everyone gets all excited about CQB (which they will never do IRL) and shorter 10" to 13.5" barrels but you lose so much velocity!! This is why I believe 18" is the absolute sweet spot for an AR. Rifle length gas system, soft shooting, less flash, less recoil, amazing velocity.....and if 2 extra inches and 4 more oz is a big deal YOU ARE NOT AN ACTUAL MAN! *FYI: playing around with Strelok between 700 and 800 yards is when your projectile went transonic (possibly subsonic) and the drop between 700 and 800 is nearly 80" - MASSIVE difference over that 100 yards*
The M27 only runs a heavy barrel, not a match barrel. It's a 1moa rifle at best if running mk262s. They're running a sub-moa rifle which you absolutely start to feel beyond 600yrds.
@americanoutlaw at 800yds where the ribs broke, that is right around the distance where that round goes transonic. If that is the case then the subsequent transonic boom could have occurred right at the point of impact increasing pressure in the cavity thus additional injury and cavitation.
We tried long distance shooting with .223/5.56 in the late 80's during my PD days. We had an AR, Mini 14, and bolt gun, I think a Ruger 77 but that's been a long time ago. Anyhow, especially with the Mini 14, we found bullets tumbling more often than not after about 700 yds. At 800 if we managed to print our shots, they were mostly keyholed.
@@mikeoxmaul5062 True enough, some of the new barrels and rounds are spinning freaky fast compared to us old farts! They are getting monster stability to range with some rounds that make you wonder. I can't wait to see what guys do with the new 8.6 Blackout. What a fun round.
lol. That’s the marine corps cure all. Corpsman: what’s wrong? Me: I think it’s toenail fungus Corpsman: ibuprofen Corpsman: now what? Me: bad chow, got Montezuma’s revenge Corpsman: take TWO ibuprofen and wear a diaper. Go to work
Can't believe I had to scroll this far for a barrel length. It's like the bare minimum information to give out especially when talking about 5.56 ballistics.
“Do you see the T-Rex arms up there?” -Lucas is here? “No, the arms on that T-Rex!” 😂😂😂 In all seriousness, awesome video- I’ve always been curious about those ballistics so it’s cool to see some real life proof of what really happens.
When I was in basic back in the 70's we had targets out to 300 meters that was used for qualification with the M-16. IMHO the 556 is a great anti personal round. I have a rifle with a 16 inch barrel and use it for home defense against intruders. Now it's close combat where yards are feet and at say 10 feet a 62gr bullet traveling at 3000+fps will do the trick. The best part is a 556 will not cause the mess a 44mag or a shotgun will produce, less cleanup, and a hunting rifle will not raise many federal flags like a hand gun or a semi auto will.
I salute you guys! That question was never really answered. Also I would love to see that with a wintercoat and some "real life" obsticals ANYWAY -> instant sub for MAKING IT 🫡
I'm not sure how true this is so someone, feel free to correct me, but i heard somewhere(can't remember where) 5.56 was never truly intended to kill, but to take combatants out of a fight. I.e. hitting a combatant, taking him out of the fight and having his buddy drag him to safety. Essentially, 2 birds, one stone.
Just to let ya know i mute the commercials and look at another website until it's over then rewind to the start of what I want to watch. Thanks for posting.
You were talking about hydrostatic shock around the 17:00 minute mark. Allow me to explain how this works a little bit.....when a round impacts, if and only if, the impact velocity is above 2400 FPS, what happens is the organs and tissues will stretch and cavitate, due to internal organs mostly being water (similar to how it takes the water a second to close in around your arm when you punch water in a pool, we also see this effect in ballistic gel as the 'temporary cavity'). Below 2400 FPS, the organs will stretch and return to normal, but above 2400 FPS it's too much for them, this has been pretty well studied, and what effectively happens is the organs and tissues will begin to tear themselves from reaching their elastic limit, thus causing damage in areas where the bullet never physically contacted, and the temporary cavity becomes apart of the permanent cavity. 5.56 is definitely 'lethal' out to 1000, but I would not call it 'effective' at all, at any range past about 300m, especially using common ammo such as M855 or M193, and with basically all 5.56 loads you're below 2400 FPS, which means you're not actually getting hydrostatic shock even if you're using a round like Mk262 which will fragment, and thus you're missing out on a LOT of terminal performance and incapacitating power. These rounds are roughly transferring the same amount of energy and damage (actually, probably significantly less) as a 22lr hollow point would up close which is not what I would consider effective or efficient (unless using again something like M855A1 or Mk262 which will fragment and create multiple wound channels). 5.56 wounds at distances of 300 meters and closer are extraordinarily devastating simply due to the Hydrostatic shock, and the mass fragmentation of the round which is observed at velocities higher than 2500, especially if your impact velocity is near 3000, even when utilizing basic M193 or M855 ammunition. I also recall you briefly touching on M855A1, which the effectiveness of that round has less to do with it's increased velocity (M855A1 is only about 50 - 100 fps faster than standard M855 on average), and more to due with the construction of it's projectile, there is a separation, though small, between the exposed steel alloy arrowhead and the copper jacket behind it, gel (and flesh) will fill this small gap on entry, and strip the jacket off very violently, similar to how a hollow point projectile acts. The Chopping Block has a video where he tested M855A1 projectiles at reduced velocities, and out of shorter barrels to directly test how it would fragment at lower speeds, as rounds like M855 and M193 will not fragment well, or at all below 2400 fps. M855A1 however displayed the capacity to continue fragmenting at 1900 FPS which is absolutely insane, and drastically increases the effectiveness and terminal range of 5.56, similar effects are seen with the 77gr Sierra Match King MK262 (which you were using for this video). Mk262 and M855A1 both on average *double* the effective range of 5.56
(Not a doctor except on UA-cam) i work in TacMed training in TECC/TCCC and a variety of other types of training. My guess on the broken ribs is a combo of prior micro fractures from bullet impact, over pressure internally from temporary wound channel/shockwave followed by trauma to the shoulder causing the micro fractures to break. Most likely larger fractures intern side unseen during inspections but that rapid expansion internally would cause the body/sim body to expand. I can also say anyone who thinks just having an IFAK will keep them going without advanced care available after being wounded is incorrect and never been shot. Even a pistol caliber near the femur will be a risk for about 12 hours of the femoral artery rupturing at random during movement (like turning in a bed or a sneeze) and that will have you limited mobility for roughly 3 weeks. Walker, cane and random sharp pain for another few weeks. You're not throwing on a TQ stopping bleeding on a muscle wound and jumping back into the fight. Sitting and standing takes work and going back into the sh1t for very long will be nearly impossible once swelling starts. If the femur or artery is hit according to doctor's You're at about 18 weeks of rehab after surgery, putting bone back together with rods and plates and risking serious infections after. Great video. Nice to see you showing 5.5.56 ballistics and how effective, what ranges and what the bullet drift is.
Great video. The 556 definitely did the job at range. Even the fleshy hits could cause fatal bleedout given the wound channel (all the damage you can't see). Would have loved to compare these hits to 308.
I've taken pigs with my 10.4" 416 from 400y, drop in 1 shot, so it still has some pop to it at that range. Hit targets at 600y with it but...not a whole lot of energy on target. Would still probably jack you up but you are losing a LOT of velocity at that range.
Well Sierra Match King is a Hallow Point round. Fun Fact - JAG had it listed as a round allowed for war by the Hague Convention along with a few other bullets. The 7.62 x 51 175 gr is actually a absolute destroyer at that distance
❤❤I think it be 7 buy id like to see the 77 grain throw downrange with an 8 inch twist rate ,suppressed and un suppressed with same barrel length and then with soft body armor like 3 ,and the whole thing done with 308 then with the Army's new Rifle and done fully with 277fury ,,be great if they could do it with the same 277 as the military is using as i belive its off limits for the people ,you can only get a little cooler stuff but even the cooler stuff be cool just not quite as good maybe ❤❤❤
I was a Designated Marksman with 3rd ID in 2005. I had an old school M14, but we just got upgraded versions of the M16A4 that had been heavily modified for DM use. Heavy, free floating barrels with better triggers and optics. I spent time on the range with in in Kuwait and found 600m was about the max range. After that it stared to get squirrelly. But, in October of 2005 we got into a firefight with the Maudi militia near a palm grove in Sadr City. We were up on a river bank. I had a nice elevated spot proned out across the back of one of the HMMWVs and had a spotter calling out targets. Some of the shots I took that day were well beyond 700m and I got confirmed hits farther than that. While I never got to see the aftermath, I did watch some of the fighters drop from the 5.56 rounds they caught. So I can tell ya, that Specific day under those conditions, it got the job done. RIP Spc Sergio Gudino KIA 25Dec 2005.
Awesome story, thanks for your service. R.I.P to your brother. What bullets were you shooting?
Sounds like you had a M16A1 converted to the MK12 Mod O or Mod 1. I have a Mod 1 that will carry 77 grain S&B to 2850 FPS and go transonic past 1000 yards here in the mountains. The guns are incredibly capable!
@@tcbk1234 Nah, at that time Around 2005 the MOD 1 and MOD 0 wasn’t around just yet. The army had its own DM project. You can look it up on google and you’ll see pictures of 3rd ID soldiers carrying them. They looked exactly like A4’s…. Only you’d have to be holding one and look at it up close to see it was modified.
@@isaactrujillo76 Green Tip.
@@haveaday1812 figured, thanks for the reply.
I’m not a physician. Just a nurse practitioner, but I’ll take a crack at answering your question. The ribs cracked due to the torsional forces. Yes hydrostatic force is a thing. Colleague of mine died of multiple areas of bleeding from a single gut shot from .357 magnum at point blank range. Our two best trauma surgeons couldn’t save him. 17:06
I would think a 357 at point blank range would be more dangerous than the 556 at distance but either way I wouldn’t want to get hit with either. Sorry to hear about your colleague.
Crazy thing is alot of high powered rifles still have enough muzzle energy at 1000 yards to be similar to a 44 magnum at point blank range 😮
@@thomasdalton7987 Yup. 357 Magnum from a 6 inch barrel can be around 900 FPE. 5.56 usually sits around 1,000. From a rifle, 357 Magnum can be ~1,700 FPE, hitting, and can be within 400 FPS of 308, using a 158 grain to the 308's 155. You could even chuck a 150 grainer at 2310 FPS from a rifle, though that's an overpressure round, and should only be used in rifles or large framed Rugers. That's 228 FPS short of 308 with a 5 grain lighter projectile, but also, a wider one. A 158 grain 357 Magnum projectile traveling at 2153 FPS from a rifle has the same TKO factor as a 155 grain 308 due to it's larger diameter.
44 Mag is a step up even still, but won't shoot as flat as 357 Magnum.
Sorry about your colleague .
In a odd twist my drunk uncle got into a argument and his friend shot him from 3 ft away in the stomach. It passed straight through and never had time to expand. He survived 🙌 crazy how one person lives and another dies.
finally, someone does some 5.56 ballistic testing at distance. kills a lot of the myths surrounding the cartridge. great video!
Exactly, ballistic tests with rifle cartridges at 100yds or less are stupid and pointless
Well... They really didn't have to take it out to 1000. A ballistics test is focused on the round, so you really don't have to take it out to distance. They could have done this with a series of increasing velocity hand loads to simulate the velocity of a given round at x distance, or done the same thing by firing the round through different barrel lengths. What 5.56 does out of a 10" barrel within 25 meters is what it will do out of a 16" at 250isb and out of a 20" at 300ish. We know how much velocity we're gonna lose at a given distance for different loads. At that point, it's just plug and play math.
Don’t forget your vest!
@brianzimmerman4837 it's different, you have to consider the path of the bullet when that far away, it's going to be coming at a steeper angle instead of basically straight on when close up, it'll have different velocity by then, etc
@tylerc7336 Well, the angle of travel can be taken onto account with a ballistic calculator. The velocity of the round at a given barrel length distance can be taken into account with a velocity chart. Just have the different loadings, and fire them in sequence. Hell, make them in triplicate, do a chrono, block, then dummy test within 25 meters. It would have been easier, and the environment of the test would have been more controlled and repeatable.
There's a lesson here that I'm not seeing anyone else mention here: WEAR YOUR DAMN PLATES. Every killshot taken here could have been stopped by Level III body armor. Maybe even Level IIIA at 700 (Not recommended). If you have a plate carrier, get good plates. We lost some Rangers in Mogadishu Somalia because they didn't take their plates.
Agreed. Definitely puts into perspective how life saving body armor would be. L3 or L4 would have handled these shots at these ranges and I suspect in a real war you will be exposed to shrapnel that will have similar lethal properties as 5.56 at a thousand yards and those plates and helmet will keep you alive.
That was my thoughts exactly!
Best 5.56 lethality test done on UA-cam. Bravo 👏
Thanks !!!
❤Yeah ,spot on guys ,i second this comment!! by far best!! better than Dr Thumb with this test ,lovely work guys ! many thanks !
@@LastAmericanOutlawgreat video 👍 the only thing extra i would have liked to see is you going for the 1000 yard head shot with a more precise plataform like the ruger precision 556 bolt rifle or a nother 556 cal bolt rifle too see if the round could penetrate the skull at that distance
@@LastAmericanOutlawI agree I loved it! Can we do more terminal effects at distance with various calibers?! PLEASE.... 😊 Few test at these ranges. Mk12 Mod1 / Mk18 btw is my goto. Easy to pickup ammo and tack driver for bad times. Great shooting both of you.
Bring out the 50 bmg, long shot 2 miles @@LastAmericanOutlaw
I'm here to explain why the ribs cracked. the ribs cracked due to being shot with a 77 grain Sierra match king. you're welcome.
Thanks. Mystery solved.
@@RINO711 you’re welcome. I’m glad I could clear that up for you. Lol
I was wondering about that
There also not real ribs
Pretty funny, but I think he meant there were broken ribs below the one he actually hit first. That's what it sounded like he was inferring
I have no idea why other tubers who utilize these ballistic dummies haven't done this. Great work for what I believe is the first person to show us what we've been waiting for.
Because the probability of you actually shooting that far is extremely slim to none.
Especially with 5.56.
When there are many other cartridges that’ll work way better.
Personally I wouldn’t use it past 600 yards because I live in a city. But my country AR is 300 WM so..
Really depends on your location and what you’re using it for.
Military applications obviously are different with war and all that.
@@MigaziiThat's fair. But it's super rare that guntubers even go to 100 yards consistently. Hard to explain the disappointment when I constantly hear "alright here we are at 7 yards" with an ar15.
@@godwarrior3403that’s for real though. Like I always seen them testing different rounds and they are basically point blank. I’m like I want to see what does at like 100-300 yards. I already know what it does if someone gets blasted Han Solo style across the kitchen table.
I mentioned this to Garand Thumb, no response
@@InkwellFoto Same. Ultimately he's got a job to, and a life built up that takes real funds to keep up. He's gotta do what the majority wants. We gotta outweigh those who just wanna see instantly gratifying ballistic dummy results haha
This’ll be one of those videos people come to watch YEARS in the future
Hopefully 🤞
History in the making
I am a CMP-USAMU Military Rifle Instructor assisting USAMU deliver SDM, TTT, and SAFS Training . I have used my SDMR build in NRA Long-Range Competition and find shooting this sort of rifle at 1000 yards and hitting where aimed is mostly about getting the correct hold for wind. Even shooting 80 grain Berger’s using an MOA wind constant of 10 just a 1 mph full value crosswind will displace bullet about 10 inches. So unless you have the skill to discern minuscule wind changes good hits with the 5.56 at 1000 yards is very difficult. I am US Distinguished Rifleman, as well as American High Power Rifleman in Long Range Award Winner but so far average score with a 5.56 at 1000 yards is just 94% on the NRA LR Target.
Thank you for your input.
With respect, “only 94%” at 1000 yds is still very very VERY good.
yup...not sure if they mentioned their velocity, but a 77 gr Berger OTM leaving @ 2700 fps will move ~15" for every 1 mph of x-wind...
so, a 5 mph gust or drop in wind means ~6 feet left or right miss!!
A fair amount of luck involved, considering time-of-flight is almost 2 seconds...the wind can change a lot in that amount of time and over that distance.
@@ShastaBean interestingly enough, a shooter can use an MOA wind constant of 10 when shooting Mk262 from an M16A4 to 500 meters for good wind favors. Teaching the SDM course I find this constant is good though 600 yards although ballistics table suggest using an MOA constant of 8. In CMP EIC competition I use MOA wind constant of 10 at 300 yards shooting 77’s and a constant of 10 at 500/600 yards shooting 80 grain Berger bullets. Many years ago I shot a 200 yard miss in an EIC Match at Camp Atterbury and thus I thought there was no means for me to win the tournament. In the 300 prone rapid stage I adjusted for a 10 mph cross wind from a mid range reading and I shot a 99, then at 500 I I adjusted sight again using MOA constant of 10 and shot a 197. I still ended up with a poor score, I think 474 x 14 yet finished in second place for 8 leg points because I was only one of about 40 shooters who took wind reading at mid range rather than at firing point. Seemed to me perpendicular burms down range were changing the direction of wind and I was right about it. All other shooters lost a bundle of points at 300 and thus that put me back in the game unexpectedly. Fun stuff.
@@charlesludwig9173 You have far more experience than I do. I've only scratched the surface on LR shooting. But a fair amount of time altering variables on the Berger & Hornady online calculators. Great tools!
The range I go to is typically windy with it being gusty and swirling. I've factored the wind at the bench, only to walk out to 100 yard target and it's going the exact opposite direction. Really puzzling to figure out. Probably also affected by berms. When my anemometer goes from 4.2 to 12.7 every 3 seconds I do question how anyone can even make a predictable shot. Yesterday I stepped off the back porch and it was 1.1 to 7.6 and back again all within 5 seconds.
I spent most of my adult life on the golf course and driving range, rather than the shooting range. But same thing - wind!!!
I get it all worked out in my head, and aim a shot to start out over the water, then it flips direction in the middle of my downswing! & SPLASH!! haha!
This is peak “Garand Thumb we have at home.”
💪
Both are legit. But let’s be real, Garand had to go to the Drs to get the same amount of Testosterone that Outlaw had when he was 9 years old 🤣
@@TommyHexagonoutlaw been shaving since middle school
Wait hes on trt? @@TommyHexagon
@@ar7067 bro are you serious go watch one of his vids from a year ago and tell me you don’t notice the differences. Power to him imo
I was talkin to a buddy about this very same thing. It only takes 90 ft/lbs of pressure to penetrate the body, and what I’ve read 5.56 has substantially more pressure behind it than that at distance. My thought process was, it might not kill you at that distance but it would sure take you out of the fight. Glad to see someone finally tested it.
It depends if they have any kind of body armor on. Even the most lightweight kevlar will stop a 5.56 at distances above 500m.
Outstanding!!!! 5.56 is capable, especially if you're using a proper 16-20in barrel to get that optimal spice out of the round, just gotta know your rifle and work the environmentals.
Yes sir it will get the job done for sure!
@@LastAmericanOutlaw 💪🍻
Being deadly and getting the job “done” are different right? I’d have bugged out by the time the third bullet zoomed over my head
@TheLastAmericanOutlaw what was the barrel lenth on this one? Some more gun and optic specs would have been sweet, I seen s&b glass big $$$
Also would like to know how long this barrel is
“You see the t-Rex arms up there?” “Oh Lucas is here!?” 😂
Went through Designated Marksman school and based on what I was told there there's a lot of dudes pushing up daisies cause of the Mk12's capabilities at 800yds+
It will get it for sure. If you can read the wind.
@@LastAmericanOutlaw oh for sure. I've pushed 5.56 to 1k on several occasions.
We nailed tons in GWOT at extreme ranges. One guy was court marshalled as he was taking under arm shots sideways at 400 yrds or so and next morning the field was full of bodies. They all never knew what hit em, company plus of em, with a single NV scope and a supressed Mk12. He was NOT found guilty once they figured itmout and heard the story but they had thought he was executing them all. Mk12 is no joke.
@AldoSchmedack that's the kind of stuff I was told (not the Court Marshal stiff). Said that rifle easily put dudes down.
Yes confirmed 7 talibs from my mk12 gunner. We used to call it a glorified m16 until we saw it in country lol. Those match grade rounds with the hollow tips will remove heads also. Seen it on just a dog at close attack range but nonetheless it was devastating.
Correction to the medical comment made at 600 yards… A decompression needle lets air out of the chest cavity that is compressing the lung, a tension pneumothorax. Blood in the lung/chest cavity, a haemothorax requires a chest drain, which requires serious medical knowledge and skill and equipment. Even worse than that would be a haemopneumothorax - Blood and air in the chest cavity.
Just thought this was important to clarify, so that people don't misunderstand the effect of a decompression needle.
Great video though, really interesting testing.
‘Lucas is here!?’ 😂😂😂
😂😂😂
The comment I was looking for
@@Trustme-im-forklift-certified same
@@Trustme-im-forklift-certified same here lmfao
Priceless
I love how Phil is all calm, methodical, and chill. Meanwhile Troy is all "IT BLEW HIS SHOULDER OFF!" :-D
Obvious that COOL works. Neet
5.56 performance at 1000 yds is meaningless to me because that will never happen from my rifle. But hella cool to watch.
Try.
Okay
Never taking a shot from that far is what it is. With that being said, knowing what your rifle and cartridge combo is ACUTALY capable of is always a good thing. I would never take a 1k shot with my hunting rifle at deer, but I have verified dope out to 1k yards because I like knowing what my equipment is actually capable of doing.
@@rdsii64 This...
You mean from the shooter, the rifle will do it
The 5.56 long range game is VERY technical! From the hand loaded 90 grain bullets through a 20" 1/7 twist match barrel, the first year the Army brought them to the 1000 yard line and absolutely crushed it, it was game on! It will do the job at 1000 yards.
90 grain hand loaded 5.56mm bullets? Very interesting! Are those bullets commercially available?
Is this Wild Bill” ringing in? No greater validation than the driver of the M16 that set the Interservice Record!!!
Can a 1 in 7" barrel twist stabilize a 90 grain round ? I know the 1 in 7" was made for the 62 grain all the way up to 77 grain. Never heard of people firing heavier than that from a 1 in 7" twist barrel.
@@fanman71yes the 1:7 twist is designed for heavy bullets, and does better the heavier you go. Most civilian rifles are 1:8 or 1:9 bc they’re geared for civilian ammo that’s usually 55 gr target 223 rounds. It won’t be able to stabilize the heavier round but the 1:7 will love it
Was the 90 grain bullet too long to seat in a magazine or were they fine?
Finally…. Been waiting for someone to do this exact test with a ballistic dummy at distance. Don’t know why it’s taken the community so long to put this out there! Good job fellas!
Thanks !!
I once saw a guy hit a 950 yd shot, center mass. Both of us to this day (35 years later) do not know how he did it. No special equipment with a standard low power scope and 5.56mm. It was right on a dusk with sun behind us. It was that time of day when it is starting to get cold. We had just set up our OP, I then finished calling distance on and windage when and I said to send it. As it was a cold bore we expected to have to correct. So when I called it we both thought I had called it wrong.
But the instructor told us that it was a correct call. I was a better shot coming up through the course, but he was luckier. I still remember the lesson we both learnt from the instructor that day; it's better to be lucky than good. Our instructor said that the enemy may not have the best training or the equipment, but Murphy can strike at any moment and the enemy can be lucky too. So train harder and make sure they don't get a chance to be lucky. Of coarse we could reach out beyond a 1000 easily, especially with the right equipment (not 556), but regardless of if we saw enemy or not, we made sure to make it almost impossible for the enemy to get lucky.
I've had this debate for years with civilians who seem to only know the 500 yd reachability of the AR platform. Yet they don't understand that there is a difference with military ammo and civilian grade ammo and I'm not talking about just grain differences.
You CAN "reach out and touch someone" to 1200 yds on a GOOD day!!! And for us who went through basic training and Infantry AIT in the late 80s, we not only had BRM but ARM as well, trained and qualified in ALL westher conditions and it sucked in GA and in the winters and falls.... We had to hit targets both stationary and moving that popped up moving forward and backwards and side to side at distances out to 800 meters. We had to do it with the M16A2s with iron sights, M60s and M240s as well and M249s and also at night. Not including qualifying with the LAW, MT4s, Dragons, TOWs and some of us Javelins.
So when it comes to understanding ballastics of .556 and 7.62 rounds, stop thinking it's not possible to get out to 1k yds... It is!!
I don’t think that’s the issue I think it’s more they wouldn’t be shooting at someone that far with 5.56 when there are better calibers that can be used.
Me personally 5.56 wouldn’t go past 600 yards because I have a larger caliber for that.
I live in a city so the probability of pretty everybody here shooting someone at even 500 yards is quite slim. If not none.
Obviously war is different.
Like I can easily shoot past 100 yards with my pistol but I’d rather switch to the 5.56 or 300 blk.
Or even 308.
Don’t have any AKs yet.
But even with MY 600 yard cutoff I highly doubt I would even shoot past 200 yards.
Unless I’m holed up somewhere but that’s a whole other topic.
Point is there is better rounds to use then 5.56 past a certain yardage.
@@Migazii 22 creedmoor is a better round than 556 heavier grain and way more energy
Like it says on the civilian ammo box:
Warning! 1-xxx miles.
There is a difference between "reachable" and "reliable".
1000 meter shots are reachable with that round. Hell, a 22LR will travel more than a mile, there is no reason to think a 5.56 wouldnt also travel that far.
The key however is at what distance do hits on stationary targets drop below a 95% hit rate? 80%? 50%?
That is the real question. Yes, it will travel beyond "effective ranges" but when it comes to practical use there is a distance where taking a shot is statistically wasting ammo.
Great post. The bottom-line is training makes it possible to hit a point on a mark at a further distance than could be engaged by a lesser trained shooter. This is proven in NRA Long Range Service Rifle Competition where USAMU Shooters win and ALL others loose, coming off the firing line with a better sense of reality concerning their shooting knowledge and skills.
I believe what happened to the ribs was the shock from the impact separated the Costal Cartilage from the rib bones at the Costochrondral junction.
You have the Sternum center chest, then you have Costal Cartilage that runs from the Sternum to where you saw those "breaks", and that is where the Costochrondral Junction is, It's where the cartilage ends, and from there to the spine would be the actual rib bone.
I've found that most people don't realize that the majority of the chest area back to where your sides start, isn't rib bone, it's costal cartilage. And most of the time when someone "breaks" a rib, It's actually not a "break", It's a separation of the cartilage and rib bone at the Costochrondral junction.
It's easier to understand if you search "Costochrondral junction" and look at the images.
Awsome test.
It would be another great test to do this again with 55 & 62 grain bullets which is the bulk of what most guys own.
I vote for that . . . 62 Grn tip
@@janicejohnson1334get rid of all of it and buy copious amounts of mk262 brother, far better round, barrier penetration isn’t much different. The pros far outweigh m855s slightly better barrier penetration. SMK bullets shoot great, as you see they have good ballistics, there are some clones of black hills og round that are cheap for what they are, if you’re a hunter they work great for that too, if you want to make this kind of shit and gave good ballistics that heavier round that brings more fragmentation is a must.
You can't get it out that far. Also, I haven't found any 55 grain ammo that stays accurate after going subsonic. IMI 62 GT can reach out to 800 yd with about 2.5moa groups though.
it may not get to 1000, but check its ranges for lethality just the same..
It can 💯 percent get out to 1000 yards. It will be subsonic and have less than 100 ft lbs of energy but so is a 22lr and plenty of people are dead from getting shot with a 22
I was studying terminal ballistics at age 14. I didn't have any big guns yet, only a 22 caliber air rifle. But I made my own custom hollow point pellets for it, and tested them in different mediums. They were gnarly.
As kid combined powser of two 22.lr rim fires into one: new/ found authority on squirrels att the dump was dramatic.
Couldn't you just drill it out on a drill press?
As a UA-cam Dr and V veteran navy corpsman I'd definitely say the damage is impressive (love 16in & up ar's) but yeah we can fix it, especially those shoulder shots. We just use a metal plate like many other bone crushing injuires. My biggest complaint about 556 at that range is reliable precision (from the average person) and people thinking that lethality is the same from a 10.5 and a 18-20in barrel. But anyway love the video, amazing work, thanks for doing it. Any other calibers you jumping into in this format?
Lots of arteries in that area. If that person is down range and isn't evac-ed immediately id call that fatal.
@@brandongibbs3016 Only one minor artery in the clavicle area. Easily treatable from my side of the field. Untreated your definitely screwed. But that's what ifaks are for if you don't have 1 you better get one.
Yea but that shot looked to be in-between the subclaviicular and brachial arteries. Good luck stopping that bleed without a vascular surgeon lol
@@brandongibbs3016 true, but don't doubt a corpsman rofl. My clamps and tampons have made for some funny stories lol.
Student here with a question, would packing and other field interventions achieve hemostasis or would the patient just bleed out internally
Thanks so much for this awesome test! If you ever decide to do a Pt. II etc, here are some calibers I think would be interesting to see at various ranges!
-6mm ARC
-6.5 Grendel
-6.8 SPCII
-6.5 Creedmoore
-6.8x51mm Common Cartridge (.277 Fury, the Army’s newly adopted cartridge)
-7.62x51mm NATO
-.338 Lapua or Norma Magnum
-.375 Cheytac
Could y'all do 7.62 to 1200 yards and Magnum out to 1600
Jim Gilliland did it at 1250 with a 7.62 back in 2005.
7.62 what? 39 or 51?
@@bancuso1256 51
@@bancuso1256 39 be motar fire
@tylarhaugan7908 😂😂👍
Doctor here! not a trauma surgeon though. I think the rib fractures are mostly from the initial chest shots, however the shoulder shot likely contributed to the worsening displacement of the rib fractures and bleeding.
Thank you for this video! I've had this debate with other shooters since 1979. When I was 16 I lived in Texas and in '79 I had done some work for a man. The short story is that part of my payment was a rifle. An Armalite AR-180. The civilian version of the AR-18. Anyway after firing it for years I had no doubt that 5.56 could be lethal at 1,000 yards. I've never attempted a shot at that distance but I have fired at 500 yard targets and knowing what it can do at that distance I always believed it would have potential lethality at 1,000 just because the velocity is so high. Thanks again for this video and your channel. I love the video short clips.
P.S. I've never owned a Glock until last year and thanks to your vids I now have corrected my grip and my accuracy has improved especially on follow up shots. Very cool.
Grip high, pull it in, trigger discipline and ty for your service. I agree with all ya wrote.
@@AldoSchmedack thank you sir!
All these modern, obscure ammunitions that lead to entire forums with guys arguing and swearing up and down about how their favorite round is superior. All of my ARs are chambered in 5.56. It’s proven, cheap and readily available. And last time I checked I wasn’t planning on getting in a gunfight in the Great Plains.
BEEN WAITING FOR A VIDEO LIKES THIS. idk why no one has done this! great video
Thanks bro 😎
@@LastAmericanOutlawawesome! What's the barrel length??
@@Solidbuilthomes16 inch barrel on that bad boy. 🤙
@@SolidbuilthomesI heard 14.5" but not sure when.
According to Biden this should cut the target in half!
According to Trump it did!
Blew the lungs right out of the body
Dr. Gibbs here, they could have been fractures from the previous lung shots. The contrast with the internal bleeding made them visible. It would make more sense the shock to lung fractured those ribs with the expansion of the cavity.
Are you really a Dr. hit me up on ig please
Was already broken at 700. Rewind and zoom in and you can see them
@@LastAmericanOutlaw I did
Also you have to think about that shot at 800 again, while still not lethal, the dummy is missing the humerus which would likely have been hit and caused more fragmentation.
@@tbaylo4034 stubbing my toe brings me up for several seconds ffs 😅
Dec31, 1944 my grandfather took a “sniper” bullet below the right clavicle and out the shoulder blade. He was able to use that right arm. He did have pain and soreness. Often starting his mornings by using a handheld massager to loosen up, these memories are 40 years after.
and those sniper rounds from the Germans\Japanese were far larger than 5.56
It was designed to penetrate a 10 gage helmet at 500 yards. I'm just learning to get some distance with a 4x16x50 . 75 OTBT MATCH . Nice job Guy's 👍 800 is LONG WAYS OUT ! Channel called "Mountains, Mullets, Merica !". He shows near & far zeros and GREAT L O N G RANGE , With different calibers . Yep gotta have weight to carry velocity and co-efficiency boat tail
I absolutely love watching his videos! 👍
22:21 "Do you see the T-Rex arms up there"
"Lucas is here!?!?"
LMAO love it
75gr-77gr handloads makes this caliber night and day different at range over 55gr or 62gr projectiles. So many nay sayers that never shoot past 100 yards out there
75-77gr is all i have for defense and yote rds.
But thats not to say that unarmored targets getting a varmint rd within 300 yrds wont see some serious damage lol. 53gr vmax destroys the insides of things in those closer ranges, pure soup.
@@whiskerbiscuit99 absolutely Vmax projectiles CRUSH yotes and jackrabbits lol. I load a lot of those as well especially in spring and fall.
This dude seems way more down to earth than most of the Seals you see on UA-cam.
Great test. Been wanting to see this done for a while. Nice to see the ammo that we sell and speak so highly about doing its job
It’s the best !!
I’ve been waiting for a long range ballistic dummy test for almost a decade!! Well done !
I have a 24' heavy contour 1/8th. Heavy ass rifle for a 556 caliber but it will punch out to 1000 yards. With scope, full mag etc, Its sitting at around 18 lbs. The barrel alone is where all my weight is sitting. I slapped a tank brake on it and literally zero recoil with it and the overall weight.
I never could tell what damage it might cause at that distance or even 600yards+. Its really nice to see folks test this caliber out to these ranges with ballistic dummies.
75gr matchkings are far superior than the green tips that were mainly used by infantry in the GWOT. All of the reports of underpowered 5.56 were mainly from m855
These are 77grain smk. Black hills 262. It’s not green tip.
I bet you not volunteering to prove your statement? He he he.
That round was mades for the machine gun
Yep m855 was the worst performing round the military adopted. Horrible terminal performance. Even at just 100 yards it will pencil through or wont tumble until 6+ inches in. At least m193 fucks at 200 yards and in consistently. Add in the rounds design with having a steel insert so its not concentric and you end up with lacking accuracy too.
@@Nick-sx6jm m855 isn’t consistent enough to generalize like that. Some yaw within a couple inches of penetration, some go 6-10” before yawing. This obviously leaves a lot of folks saying they shot folks and saw no reaction and other folks saying the round is a vicious meat axe.
Ive been tagging and begging every gun tuber to do this exact test...so thank you
Great information that’s well articulated it’s all about the ammunition and capabilities of the shooter with the right equipment
We, the public, need way more videos like this. IMMEDIATELY!
Remember, ballistic gel is not a 1 to 1 comparison to live tissue, so real life performance would probably not have as much penetration (look at FBI ballistic gel test, where a BB should penetrate roughly 3 inches in gel). That said, these torsos are about as close as we can get with organs/bone/tissue. I really appreciate this video! I have been looking for this type of video for months 🙌
True. 10% gel at low temperature is close to muscle tissue, but people don’t realize how tough skin is. Skin is roughly equal to 3 inches of 10% gel.
@@Subtlenimbusbones as well, a bullet that pierces 12” of gel can often only pierce some 6” into an actual body
FBI is ghey, doesn't matter context
Gel isn't even meant to replicate human tissue, tissue is just WAY too variable, even within a single person's body, let alone from one to another. What it's for is creating a standard method of testing to compare one set of variables to another (like 9mm vs .357 mag through a sheet of car glass, that sort of thing).
@@roentgen571 correct, its just a consistent medium to get data from 👍
I've shot alot of distance with 5.56, 16 inch barrel, with Seals at Sawmill in NC, and realized 600 is pretty do-able, much more than that, and consistency went away. I have a buddy with a 20 inch barrel 5.56 and he can consistently get 1000 yd impacts, but there's not much left at that point. I've seen him hit out to 1250 with it numerous times, so it is doable. He's a much better shot than the majority of folks for sure... its about all he cares about....lol.
I have a 26”
I am so glad y'all did this test, I have watched this 3 times 🤣 big thanks to all of y'all. 🤘🏻
When we were issued the M16A2 in 84'. We were also given the hotter FMJ round. Shooting at 600 yds. USMC Kaneohe Bay Oahu. Don't remember the hotter round nomenclature, but you could tell from firing. It kicked a little more! We even used the three round burst at 600yds. Shooting in the prone position using standard iron sights. I shot black all day, hitting the heart. All three rds. In the heart! Reach out and touch someone! Semper Fi!
Hey man it’s great to see how much you channel has grown since Yeager first introduced you to us .. over 600k is no joke … congratulations
Thanks brother
You see the trex arms up there is lucas here had me crying laughing
Bro, I'm insulted that you would even question whether we have seen Rambo. Of course we've seen all the Rambos. THEY DREW FIRST BLOOOOOD!
Just making sure bro John Rambo is still my hero!!’
Great to see Phil again. Loved him on Top Shot !
So going back and watching this video , i think i identifed the issue . You failed to utilize the sniper button . Great video as allways keep'em coming .
Wow, this is something really impressive 👏 love your videos,lots of love ❤
Thanks
I love the long range content. Most all rounds should be effective at "defensive" ranges. This is a video I've been wanting to do on my own since no one else on UA-cam has done it. I don't have the capital to make it happen right now. I'm glad someone finally did it. Thank you! I hope you have plans to do other calibers as well. I will definitely be tuning in for the entire 30+ Minutes.
Been waiting for someone to do this! Great video! Thanks guys
That’s worth a sub! Finally not just Bro Science but hard science
Thanks for the sub Brother!!
17:59 Crazy to hear him say "IMPACT" and then you hear the steel after. Very cool
That's what I was here to say ,so cool !
Thank you, about damn time someone did this test.
I shoot this is exact ammo and I’m so excited for all these results!
This stuff is awesome! 🙌
You won't have the same results
Dude, I remember Phil. He was a beast on Season 5 of Top Shot. Good to see he's doing good. Edit: "Magic Bullet Theory" lol
Hahaha back from the dead. Appreciate it buddy.
Outstanding video, very informative. Thank you guys.
💪 thanks for watching
Awesome video! Needed to be done, thanks for doing this.
I love how these UA-cam people put so much effort into methodically and scientifically showing us terminal ballistics on naked human targets.
Lol hitting it wered there'd be plates
I was in BCT at Fort Knox, KY in late 2000. Fort Knox was different in those days, it also held OSUT for tankers and cavalry scouts. Some Marines also trained there. I understand it's changed since then.
At any rate, during basic training we shot our rifles for a solid week to get the feel. Before actual qualification, the rifle range had popup targets out to 800 meters (≈874 yards). This was with government M16A2 and its default sights.
Our rifles were zeroed for 400m, so to hit center mass closer than that we aimed below, and to hit center mass further than that we aimed above. I knocked down quite a few popup targets with rifle #12 at C. co 2/46 at all the distances presented to me.
For qualification day all targets further than 400m were turned off. The long range stuff was practice for "hypothetical scenarios" or maybe as a way for the cadre to see who had a good skill set.
I know what 8 magazines of green tip at 700+ meters will do in a mountainous region. I've also seen what green tip can do up close. Great video.
I'm guessing a lot?
Thanks
First upload ive watched from you guys...LOVE IT! LOVE YOUR ENTHUSIASM IN THE INTRO!!!😂😂😂🇺🇸🇺🇸🇺🇸🇺🇸
*THIS IS WHY LONGER BARRELS ARE KING!!*
Everyone gets all excited about CQB (which they will never do IRL) and shorter 10" to 13.5" barrels but you lose so much velocity!! This is why I believe 18" is the absolute sweet spot for an AR.
Rifle length gas system, soft shooting, less flash, less recoil, amazing velocity.....and if 2 extra inches and 4 more oz is a big deal YOU ARE NOT AN ACTUAL MAN!
*FYI: playing around with Strelok between 700 and 800 yards is when your projectile went transonic (possibly subsonic) and the drop between 700 and 800 is nearly 80" - MASSIVE difference over that 100 yards*
Once upon a time, I built a 24" free-floated build just to see how good I could do. That rifle could shoot better than I could.
Appreciate this video. I’m sure this has been done but the way you guys edited and the knowledge dump is class A. Thank you
The Marine Corps basically could have verified that for ya with the way the M27 can be outfitted and was designed based on Recon results and needs.
The M27 only runs a heavy barrel, not a match barrel. It's a 1moa rifle at best if running mk262s. They're running a sub-moa rifle which you absolutely start to feel beyond 600yrds.
@americanoutlaw at 800yds where the ribs broke, that is right around the distance where that round goes transonic. If that is the case then the subsequent transonic boom could have occurred right at the point of impact increasing pressure in the cavity thus additional injury and cavitation.
Great video! Thanks for sharing
Thank you for watching !
We tried long distance shooting with .223/5.56 in the late 80's during my PD days. We had an AR, Mini 14, and bolt gun, I think a Ruger 77 but that's been a long time ago. Anyhow, especially with the Mini 14, we found bullets tumbling more often than not after about 700 yds. At 800 if we managed to print our shots, they were mostly keyholed.
Tight twist 223 is pretty new. I have a 223 that is maybe 15 years old and it’s like 1:11. This rifle is likely 1:7
@@mikeoxmaul5062 True enough, some of the new barrels and rounds are spinning freaky fast compared to us old farts! They are getting monster stability to range with some rounds that make you wonder. I can't wait to see what guys do with the new 8.6 Blackout. What a fun round.
This was great! Thanks for sharing.
Thanks for watching!!!
One shot one kill.U guys been playing all day.Love ur presentation.
As a glass eyeball maker, I can confirm all those bullets would hurt and send you to urgent care.
"Here's a note for your boss. We recommend only light work. You can pick up some ibuprofen at the pharmacy. Good luck."
lol. That’s the marine corps cure all.
Corpsman: what’s wrong?
Me: I think it’s toenail fungus
Corpsman: ibuprofen
Corpsman: now what?
Me: bad chow, got Montezuma’s revenge
Corpsman: take TWO ibuprofen and wear a diaper. Go to work
How hove I been missing this channel! Subbed!!
Thanks bro
What's the length of the barrel?
16 inch 🤙
Can't believe I had to scroll this far for a barrel length. It's like the bare minimum information to give out especially when talking about 5.56 ballistics.
“Do you see the T-Rex arms up there?”
-Lucas is here?
“No, the arms on that T-Rex!” 😂😂😂
In all seriousness, awesome video- I’ve always been curious about those ballistics so it’s cool to see some real life proof of what really happens.
When I was in basic back in the 70's we had targets out to 300 meters that was used for qualification with the M-16. IMHO the 556 is a great anti personal round. I have a rifle with a 16 inch barrel and use it for home defense against intruders. Now it's close combat where yards are feet and at say 10 feet a 62gr bullet traveling at 3000+fps will do the trick. The best part is a 556 will not cause the mess a 44mag or a shotgun will produce, less cleanup, and a hunting rifle will not raise many federal flags like a hand gun or a semi auto will.
M-16 had a longer barrel
@@patricklewis9776 The M-16 has a 20 inch barrel.
Finally someone makes this video, finally. Thank you.
Algorithm sacrifice
Thanks 🙏
I salute you guys! That question was never really answered.
Also I would love to see that with a wintercoat and some "real life" obsticals
ANYWAY -> instant sub for MAKING IT 🫡
I'm not sure how true this is so someone, feel free to correct me, but i heard somewhere(can't remember where) 5.56 was never truly intended to kill, but to take combatants out of a fight. I.e. hitting a combatant, taking him out of the fight and having his buddy drag him to safety. Essentially, 2 birds, one stone.
Just to let ya know i mute the commercials and look at another website until it's over then rewind to the start of what I want to watch. Thanks for posting.
Lucas is here lol. 😂😂😂😂
😂
You were talking about hydrostatic shock around the 17:00 minute mark. Allow me to explain how this works a little bit.....when a round impacts, if and only if, the impact velocity is above 2400 FPS, what happens is the organs and tissues will stretch and cavitate, due to internal organs mostly being water (similar to how it takes the water a second to close in around your arm when you punch water in a pool, we also see this effect in ballistic gel as the 'temporary cavity'). Below 2400 FPS, the organs will stretch and return to normal, but above 2400 FPS it's too much for them, this has been pretty well studied, and what effectively happens is the organs and tissues will begin to tear themselves from reaching their elastic limit, thus causing damage in areas where the bullet never physically contacted, and the temporary cavity becomes apart of the permanent cavity. 5.56 is definitely 'lethal' out to 1000, but I would not call it 'effective' at all, at any range past about 300m, especially using common ammo such as M855 or M193, and with basically all 5.56 loads you're below 2400 FPS, which means you're not actually getting hydrostatic shock even if you're using a round like Mk262 which will fragment, and thus you're missing out on a LOT of terminal performance and incapacitating power. These rounds are roughly transferring the same amount of energy and damage (actually, probably significantly less) as a 22lr hollow point would up close which is not what I would consider effective or efficient (unless using again something like M855A1 or Mk262 which will fragment and create multiple wound channels). 5.56 wounds at distances of 300 meters and closer are extraordinarily devastating simply due to the Hydrostatic shock, and the mass fragmentation of the round which is observed at velocities higher than 2500, especially if your impact velocity is near 3000, even when utilizing basic M193 or M855 ammunition.
I also recall you briefly touching on M855A1, which the effectiveness of that round has less to do with it's increased velocity (M855A1 is only about 50 - 100 fps faster than standard M855 on average), and more to due with the construction of it's projectile, there is a separation, though small, between the exposed steel alloy arrowhead and the copper jacket behind it, gel (and flesh) will fill this small gap on entry, and strip the jacket off very violently, similar to how a hollow point projectile acts. The Chopping Block has a video where he tested M855A1 projectiles at reduced velocities, and out of shorter barrels to directly test how it would fragment at lower speeds, as rounds like M855 and M193 will not fragment well, or at all below 2400 fps. M855A1 however displayed the capacity to continue fragmenting at 1900 FPS which is absolutely insane, and drastically increases the effectiveness and terminal range of 5.56, similar effects are seen with the 77gr Sierra Match King MK262 (which you were using for this video). Mk262 and M855A1 both on average *double* the effective range of 5.56
"Lucas is here?" Lol!
😂
Excellent test on video!!! I’ve been hoping to see legit distance shots like this
MK 262....is the business....for those that know....know.
It frags down to 2,100fps per black hills. I hit 2,920fps out of a 20" AR and my reloads. I can safely load to about 2,975, but SDs start getting bad.
(Not a doctor except on UA-cam) i work in TacMed training in TECC/TCCC and a variety of other types of training.
My guess on the broken ribs is a combo of prior micro fractures from bullet impact, over pressure internally from temporary wound channel/shockwave followed by trauma to the shoulder causing the micro fractures to break. Most likely larger fractures intern side unseen during inspections but that rapid expansion internally would cause the body/sim body to expand.
I can also say anyone who thinks just having an IFAK will keep them going without advanced care available after being wounded is incorrect and never been shot. Even a pistol caliber near the femur will be a risk for about 12 hours of the femoral artery rupturing at random during movement (like turning in a bed or a sneeze) and that will have you limited mobility for roughly 3 weeks. Walker, cane and random sharp pain for another few weeks. You're not throwing on a TQ stopping bleeding on a muscle wound and jumping back into the fight. Sitting and standing takes work and going back into the sh1t for very long will be nearly impossible once swelling starts. If the femur or artery is hit according to doctor's You're at about 18 weeks of rehab after surgery, putting bone back together with rods and plates and risking serious infections after.
Great video. Nice to see you showing 5.5.56 ballistics and how effective, what ranges and what the bullet drift is.
As long as u hit its lethal force.
But there again so many people get hit multiple times and live.
Great video. The 556 definitely did the job at range. Even the fleshy hits could cause fatal bleedout given the wound channel (all the damage you can't see).
Would have loved to compare these hits to 308.
Cool now do effective range of 10.3
I saw a video of a guy hitting targets out to 800 with one.
I've taken pigs with my 10.4" 416 from 400y, drop in 1 shot, so it still has some pop to it at that range. Hit targets at 600y with it but...not a whole lot of energy on target. Would still probably jack you up but you are losing a LOT of velocity at that range.
@@Zel_eowhat ammo?
@@lgdurocher Both 69 and 62 grain is what the HK likes. The 400y was with 69 otm but the 600y was with m855 62 grain.
Well Sierra Match King is a Hallow Point round. Fun Fact - JAG had it listed as a round allowed for war by the Hague Convention along with a few other bullets. The 7.62 x 51 175 gr is actually a absolute destroyer at that distance
6.8 when?
Really cool to watch you guys go through this step by step.
What is the barrel twist rate and length?
1:7 is best for the heavier grain rounds like 77 grain so yeah 99% a 1:7..
❤❤I think it be 7 buy id like to see the 77 grain throw downrange with an 8 inch twist rate ,suppressed and un suppressed with same barrel length and then with soft body armor like 3 ,and the whole thing done with 308 then with the Army's new Rifle and done fully with 277fury ,,be great if they could do it with the same 277 as the military is using as i belive its off limits for the people ,you can only get a little cooler stuff but even the cooler stuff be cool just not quite as good maybe ❤❤❤
This barrel is a 16 inch noveske with a 1:7 TR 🤙
Semper Fi! Thank you for showing the lethal effectiveness of the 5.56 at the 1000 distance, awesome! God Speed