300 Blackout Barrel Lengths and Affects on Velocity. Silencer School EP.5
Вставка
- Опубліковано 22 лис 2021
- Deals and other cool finds linktr.ee/alabama_arsenal
"This video is for educational and entertainment purposes only. All guns displayed off the range are safety checked and only displayed pointing in safe directions. All footage at the range is private range and the gun is handled by a Range Officer certified by the National Range Officer Institute. This video is not promoting or attempting to sell guns. Sale of guns is heavily regulated and I am not associated with any federally licensed firearms dealer. The actions of all firearms displayed are unmodified and presented as commonly available from original equipment manufacturers. This video is not instructional on building or modifying firearms. Nothing has been done to increase the rate of fire or lethality of the firearms displayed nor would I advocate making such modification as it presents a huge liability and potential risk of harm or death."
Enjoy the content on Alabama Arsenal? Consider becoming a patron
In this video we take a look at the affect of barrel length on velocity with subsonic 300 Blackout.
Please like, comment, and subscribe, it really helps us out. - Розваги
The quality of your videos are simply amazing. No fluff and straight to the gun stuff. Just really getting into guns myself and purchased my first AR-15 recently and your videos have been great to watch and learn from.
This is the first video I’ve come across in your silencer school series. I’m sure I’ll watch them all. I’ve got a CGS Mod 9 in NFA jail right now. My first can.
Aaand, I just ordered a BCA 10.5” side charging upper in 300 Blackout. It’ll be my first experience with 300 Blackout.
Thanks for the great content.
That you for watching man!
My introduction to the .300Blk was when I purchased my BRN-180. Love the round, can't wait to get a can for it. Great video.
Its a great round. Quietest, most effective round currently available. Thanks for watching!
I agree, it's been fantastic so far for me and is my favorite intermediate round out of the AR platform. Keep up the great videos!
Nice gun!
@@chrissewell1608 thank you, it was well worth taking the plunge so to speak!
Great video. You answered a particular question, with some good, solid numbers, without boring 😴 us (me) to death with any 'rabbit trails.'
Love this series. Keep em coming
Amazing video. To the point and informative, answered my questions and more. Thanks!
Great video. I'd like to see this same exact test performed with supersonic ammo in the 110gr-125gr range. Not the 150gr rounds that just use surplus .308 bullets to make the ammo as cheap as possible which makes them not particularly good at being a supersonic round and not quite subsonic yet.
It looks like enough people want it, we'll probably be doing a supersonic version very soon. Thanks for watching!
@@AlabamaArsenal great to hear!
@@AlabamaArsenal of course people want it, because that is where we will see a real difference between the barrels!
@@basti080891 exactly. I understand the subsonic and all but everyone running around with mini barrel suppressed like there's a real chance your going to use that shit for a home burglar defense. 300blk were 1000% designed to run 110-125max grain SUPERSONIC. My Spidey senses say "big suppressor corp" is behind this subsonic craze. Damn capitalist 🤣
Agreed 1000% same test with Supers especially 110-125 gr as this seems to be the sweet spot fo supersonic 300BO loads, the Barnes 110/120 TacTx, Lehigh 110/115 gr controlled chaos, Hornady 110 VMAX and CMX or Sig 120 elite solid copper seem to be the best offerings
Thank you. I'm shopping for a 300 blackout AR and didn't know what length barrel, 10.5 or 8.5 and I now know. Thank you very much
The Sig Rattler velocities are spot on for it's length. Remington 220 subs run 980fps. Perfect for suppressed work. 125 Sig Supers run like 2300fps. That 1:5 twist builds pressure.
Thanks for the video. Helpful for my future build!
Well put together video yall, thanks.
I love all of your thorough videos and you have the perfect overture voice for this.. I would like to see 300 blackout against 10 mm
10 mm banshee versus 300 blackout Sig rattler
I'm using a 8.5" carbon wrapped 1:5 twist barrel. On a Uintah Precision upper. Law Tactical adapter attached to a carbon Wilson Combat buttstock. Thanks for a great channel. It's a 1:5 twist because of your work. Thanks 😊
Bought that POF Renegade Plus in 300 blk because of your review awhile back. I haven’t had a single regret since. Thanks as always for the awesome content!
That’s a great rifle! And I appreciate the kind words. Thanks for watching!
Awesome. I was about to build .300 blackout with the Faxon 6” 1:5 twist. Hopefully this video points me in the correct direction. 2:52
Been looking for just this type of video. Thanks homie!
Thank you for watching man!
Bolt actions produce slightly higher velocity as youre not loosing pressure halfway down the barrel for the gas port. You can compare a 16" carbine vs 16" mid length and the mid will have slightly more velocity although less dwell time.
Good idea on this series, great info.
Silencer School is briliant idea! Thank you for the good info!
Thank you for watching man!
Thank you for the great video.
Love these videos. Now we need one with supers please lol. With the goal of staying under the speed of sound with subs, speed loss with supers tends to peek my interest in these barrels more. Keep up the good work!
great topic. Great consistent channel 💪🏾
Appreciate that! Thanks for watching!
Always have wondered about this topic. Thank k you
I had wondered about 300 Blk and loss of speed with very short barrels. Thanks for the video!
Happy Thanksgiving brother and thanks for the videos!
Hope that you had a great Thanksgiving as well! Thank you for watching!
@@AlabamaArsenal absolutely. Keep up the good work
I think a great video would be running the rattler with a can on all the grain options until you find where it goes from sub to super. I would imagine it would be around the 185 grain area but a video testing velocity with different grain bullets and not different length barrels would be a good idea
Love my 300blk! Just ordered a 1-6 LPVO for it and I'm excited to push its limits.
That's awesome man! thanks for watching!
I love this new series........
I'm digging your silencer school
Appreciate that man! Thanks for watching!
Wonderful presentation as always!
Really appreciate that! Thanks for watching!
This really helped determine what barrel length to go with, preciate it
Great content as always brother and very informative. Well done 👏
Glad you think so! Thanks for watching!
AA…your channel is informative as well as very chill with your skilled editing…I look forward to watching 👍👍👍 😎😎😎…I built a .300BO 8.5” pistol that I’m going to SBR after the first of the year 😃😃😃
This is like scratching the surface of velocity and barrel length of the .300 BLK out. Would love to see a update with 16" and lower length 12.5 10.0 also. Thanks
Absolutely proper video content! Great job guys thank you and keep up the great work!
Really appreciate that man! Thanks for watching!
Great video! Love the .300 blk!
Me too! Thanks for watching!
Love my canebrake with the Q half Nelson. Great video.
I bet that is a good combo! Thanks for watching!
Excellent video my friend!!!
The music puts me to mind of playing "Perfect Dark" a couple decades ago. Lol.
One of the best games ever created. It was very advanced for its time.
@@featheredserpentofthewest2049 for sure. I have played it in the last year and I was mindblown how good it still is after all this time.
Great vids! Waiting on my first suppressor to get out of jail. Dead Air Nomad Lt. This video makes me even more impatient to start playing around with it on my rifles.
Wow, real data.
Very interesting results.
I have zero experience with 300Blk, however, I’m taking a lot of interest in sub-sonic rounds for PDW’s. It’s more likely to be an indoor situation where ballistic noise would be magnified due to confined space.
Excellent video, thanks.
I love 300blk just got a reloading setup so finally making it more practical it shouldn't be as expensive as it Is online considering it uses the most common brass and the most common caliber projectile
110 gr Supers are the go-to rounds for me out of my 10.5" pistol. My favorites are the Black Hills TTSX and the Barnes TAC-TX. I am getting about 2250 fps which gives great expansion and energy. With a 25 yard zero I can aim top of chest and get point and shoot results out to 300 yards.
Nice! This is the reason I went 10.5" versatility at range with all loads giving the bullets a full twist and then some out of the barrel. With the right silencer, the poi shift from supers to subs within 100 yards should be negligible.
What twist rate?
Great video. I agree I’d like to see a supersonic 100-125 grain video.
that SMG 45 tho......another great video Happy Thanks giving
Happy Thanksgiving brother! Thanks for watching!
Definitely going with the HB and Trash Panda for my 300blk set up eventually.
10.3 DD all day. Both in 300 & 5.56. Chefs kiss for real
Good video, keep up the good work💪💪👍👍
Nice video. I'm getting into whisper pickles, but I'm starting with a Maxim 9 and will be doing a .22 suppressor soon.
(Gemtec MIST-22 probably, but definetly a Ruger MKIV 22/45 with a short barrel and some can that I havent decided on)
It'll be a while before I get around to a honey badger esqe weapon.
I love video's around 10 minute's long, thanks.
That’s actually what I try to do, pack all the info in less than 10 minutes and cut out the fluff. If I go over 10 minutes it’s because I felt it was very necessary. Thanks for watching.
Great video Tim. I'd love to see a 16" .300 BLK in the mix. I know most folks will scoff, but I think it would be cool to see how the velocities change. Since there is so little powder, and it's burned up way before exit, I wonder if the velocity increases due to barrel length will be minimal?
Also, I know you love testing budget gear to see if it's worth the money (same as I like to do)... Any chance of doing an Arken scope review? For the money, I'm beyond impressed. I just ordered my 3rd SH4 Gen2 6-24x50 VPR MIL scope yesterday.
Mr.Gunsngear did a video a while back on the same subject.
I run a 16”
Your hypothesis on the velocity increase would be correct. A 16" barrel essentially suffers from diminishing returns, as the velocity gains are less and less after passing 12" or so (give or take a couple inches, as im not near quick load at the moment.
wouldn't a 16" increase the speed dangerously close to 1.125 fps, causing a sonic boom crack and defeating the purpose of subsonic ammo?
Would really like to see you guys test the Sig 120gr Supersonic 300BLK SBR Elite Copper Duty out of the Canebrake, and compare it to some other supers. Supposed to burn powder faster -- intended for short-barreled guns.
I would argue .300blk is one of the few that allows PCC/PDW sized weapon that make sense without select fire.
I would totally agree! Thanks for watching!
I'd argue .45 acp would make a better sub sonic pcc
Always love the content! Keep killing it guys. Thank you
Great Video!
Thanks for the info on the barrel length info. Are you gonna review any of the Griffin Armament cans? If you have them in your lineup ofc.
Glad to be a new sub, quality video.
Much appreciated! Thank yo for watching man!
Interesting video. Any chance of doing this again but with supersonic rounds?
A 5.56 with a 7" barrel is still strolling along at over 1800fps and delivering over 500 ft/pounds of energy. (even with the worst ammo)
This is of course, quite a bit lower than optimal, but it still has enough pep in to put an ouchie on someone....Not sure why folks dwell on it being under-powered on the short barrels....
Good video - I was wanting to see the .300 blackout info. (I do not own one of these and am considering it with a 7" barrel) I have an AR with a 7" barrel, and I absolutely love it, and for me, it does everything that I expect of it. (Of course, I have no delusions about the effectiveness of it at distance.... When I bought it, the thought was it would be ideal to repel borders, so I never anticipated using it beyond about 25-35' at most)
I'd love to see a video about why 1 and 5 twist is optimal for 300 blackout
it stabilizes heavy subsonic bullets better. Slower twist rates work better with lighter bullets
Awesome video
You want "Effects" in the title. Affect is usually (maybe always) a verb.
Bro read the channel name, it says Alabama 😅
It’s the first thing I noticed. I can’t ignore things like this.
Let me axe you a kwest chin
You tink we kerr?!😂
@@FierceDeity95 To be fair, I really like this guy’s channel. His reviews are top notch, and he doesn’t seem like the type who doesn’t know the difference between effect and affect.
Hey nerd I didn’t come here for no English class!
Thank You ...
Nice scientific approach
I’ve heard it all before. Only this time I will listen. For you guys- I will listen.
"I've been looking forward to this" 👍
Hope you enjoy it! Thanks for watching!
The powder burn rate will have an impact on those velocity drops per barrel length. My guess is that with a faster powder you will see your biggest velocity change from the 10.3" to the 8" barrel. Less so from 7 to 5.
Burn rate vs barrel length vs projectile wt, safety concerns, don’t blow your face off, intended purpose?
Ignorance for beginners.
Great info, as always gents. Well done. Man i wanna shoot with you guys sometime.
Great video. Just got my Canebreak, can’t wait to get out and shoot it!
Nice video but I was more curious about super sonic loads. The beauty of the 300 BO is you can run the sub sonic stuff for up close and sneaky then stretch it out a bit with some supers at greater distances. I figure super sonic loads will be affected alot more by barrel length than the sub sonic stuff 🤔
They will. I’m kinda surprised they used subs for the test, and it’s pretty well known subs (loads powders and specific projos can change this but generally speaking) lose around 100ish +/- FPS going from 16” down to the 7” barrels. The 5.5s are tested less, so nice data point, but most could’ve guessed the results from a practical standpoint.
Supers are where the difference in barrel length make worlds of difference. You’re absolutely right that the beauty of the cartridge is being able to use BOTH. If you have a really short gun dedicated to subs, you might as well go with a pistol cartridge. Other than the better aerodynamics and bc of the projos (which really doesn’t come into much consideration for the distances subs will be easily placed on target), the major advantage to such a setup would be with the reliably expanding subsonic projectiles designed for the cartridge. But maaaaaaaan is that a niche and very expensive thing to feed. I’d argue that the projectile design features of the quality sub stuff negated the concerns of the difference in energy between all barrel lengths used here.
Supers on the other hand would really wring out much more important data points to consider between them.
Exactly subs are lower pressure and thus less affected by barrel length
Nicely Done…Damn you got your hair did. 😜 My favorite length for 300BO is 12.5 for best do it all.
Good stuff. I will add some of my data.
SB 200 gr subs are in the 800 fps range out of my rattler with sig srd 7.62qd.
I load 110 Varmageddon with 20 gr H110 and get just over 1900 fps with the 5.5" rattler. I really wouldn't want this bullet travelling much faster as it expands almost down to the base at 1900 fps.
Same load out of 8" Ar I get around 2100 fps, and out of 10" brn-180 with nomad-30 I get 2190 fps.
I load all of my subs for each gun individually to get 1020 fps average to keep it subsonic 90% of the year in MI as the speed of sound drops drastically when it gets sub zero outside.
To keep factory subs actually subsonic I recommend 7-8" barrels, and if you handload get whatever length you want- barely noticeable sound difference with same bullet at same velocity with same can at rattler barrel length to 10" brn-180. Might make more difference out of a bolt gun.
I do load 175 gr with trail boss for .308 14.5" pin and weld and it blows any semi auto .300 blk out of the water. As quiet or quieter than subsonic suppressed .22 with noma-30 and ebrake.
A few more velocities out of 5.5" rattler:
SB 124 fmj 1675 fps
Sig 125 fmj 1780 fps
I have gotten 125 gr bullets subsonic and cycling out of the rattler in the + gas setting
I have plenty more velocity data from the rattler, 8 and 10.5" ar, and 10" brn-180 if anyone is interested.
Definitely interested.
Thanks for the info, btw I can’t stand having to clean the filler/grains from using SB, won’t buy it anymore ha.
Can you please write what speeds you have with SB 124gr FMJ supers from 8" also what twist you use, no issues with cheaper nonbonded supers comming apart from fast 1:5 twists?
@@titanscerw I got 1843 fps with an 8” 1:7 twist and 1904 with AE 124.
@@titanscerw I have ran several hundred 110 varmageddons out of the rattler 1:5 and haven’t noticed anything negative with the fast twist
Lil gun powder for the ultimate velocity and cfeblk for the because reliability cycling subs. (For 300black)
P.s. I have got my Barnes tactx 120g (boat tail) loads going 2639 fps outta my Ruger ranch 300black (5000ft elv. In the dry high desert) that is my 300 yard mule deer load for next year. I shot a line of pumpkins this year full of water(to catch the projo) and it only lost the tip. Expanded to about a inch and the weight after the tip was 118.5grs total weight retention!!! Love that 300 black! I can't wait for 8.6 black! I just got done watching Qs live stream and I didn't win 😢. I would have answered the phone screaming at the tip of my lungs! But I guess we can't all win. But yeah the most fun caliber ever. To load and shoot is 300 black by far!!! Thanks for all you do Tim! And thanks again for turning me into a Q and 300blk O-holic! I thank you... My wallet does not 😆😆!!
Needed a 16” barrel in there for the number geeks. Or for science. Would love to see a vid for one of the popular supersonic rounds, like maybe the Barnes Tac Tx or Controlled Chaos
Nice info man
Great video guys, exactly what I was looking for. Was really hoping to see Radian Weapons Model 1 300 BLK on the list, but that’s ok, maybe next time.
Id like to see a Radian Mod1 in 300 BLK in my safe too!.. Ok that's not exactly what you said, but it would be cool! Radian makes amazing rifles! Thanks for watching!
@@AlabamaArsenal Their 9 inch 300 BLK barrel has a 1:5 twist. They just switched from 1:7 twist not too long ago.
@ compositetiger
really?
@@brighthought11 Yes. You can have their customer support confirm on the company website.
@@compositetiger Do you know the reason or have a good guess on why they would do that?
Can you do a 300 Blackout twist rate video?? Please and thanks!
Good video guys
I run a Diamondback Tactical 10” 300 black out with a tucked suppressor to keep it shorter.
Pretty cool
I'm sure I'll be the millionth person to say this, but please do this with supers. Preferably the 110gr variety. Underwood Varmageddon, to be even more specific. But maybe a velocity difference between a 110gr (with an advertised velocity of 2400fps) in these barrels, and a 120-125gr (something with an advertised of 2200fps or so) in these barrels. You have to at least do the 110gr test. This was really just a tease.
My Sig Rattler is fast becoming my new favorite pistol maybe one I'll SBR it.
Great vid, id be interested to know max effective range from the 5.5 canebreak?
Hey, you mentioned the Rattlers 1:5 twist rate, im making that Hera CQR space gat 😁 and I'm looking at barrels, for this to match the handguard the barrel is 7.5 and I'm seeing two options from Faxon, one of the main significant differences is 1:8 vs 1:5. I don't know what application the 1:5 would serve. Why does 1:5 make sense on the Rattler and in general?
I been looking at these blackouts I like the silencer
Really enjoyed this but I run a Maxim 5.5” shorty with supers - thinking of running the same test supersonic to see how supers change results?
Yeah, There definitely seems to be the interest so I guess we'll be doing a supersonic test soon. Thanks for watching!
See, this video wasn't too bad! Interesting that the shorty is only slightly better than a good 9mm for energy.
LOL Thanks for watching man!
Do y'all find very short barrel DI AR's to foul up real quick? I'm having problems with several.
You already know I’m watching all of em brother. Munching down on some bacon starting this one as we speak 🥓
Maybe our friend Who_Tee_ Who should get this Doppler setup.......looks harder to shoot by accident than a Chronograph
LOL! Not sure he likes the price tag! I just wanted the easiest thing to set up, he told me it was WAY too much money! Thanks for watching man!
He would somehow manage to shoot it too! LOL
@@AlabamaArsenal I see you had a mic on. What was the difference in noise with the difference barrel lengths??
Great video! Any chance of doing the same test but with a db meter.
For me the two best choices are:
1 - DD PDW - a 1/7 twist, 7” barrel and weighs 5.7 lbs.
2. - Q honey badger- 1/5 twist, 7” barrel and weighs 4 lbs 8 oz.
Factors to consider / what’s more important to you:
Q’s proprietary parts,
DD’s parts interchangeability,
Q weight savings
DD better felt recoil
Q’s shyt lead time
Q- almost 2x the price largely aesthetic.
DD- overall length advantage- pdw has multi positions w the maxim brace/stock - honey badger is only two position open and closed..
DD- best customer service in the industry.
I love my DD PDW. Got the Sandman-S on it
Man I wish you’d of shot a couple different SuperSonics and seen what difference was and how well the 1-5 twist stabilize like 110 grain Barnes
Good video on velocity differences. Were there differences in how much gas came back into your face?
Question.
Doesn't the sound barrier break around 1,000fps, giving those longer two barrels a supersonic crack?
I'm still new to suppressors and wanted to clear up any of my misconceptions.
No worries the speed of sound is 1125FPS so we're still comfortably underneath that. Thanks for watching and be sure to check out the whole silencer school series, a lot of good information for people new too silencers.
I was thinking of a rifle to suppress in .300 blk; do you feel that the loss of speed and energy is a big loss in an actual gun fight ? I was thinking of a 5.5” barrel, maybe an MCX Rattler or canebreak.
Those close to 45 ACP velocities/energies is exactly why I'm not a big fan of subsonic .300 blk. I much prefer the supers because I'd rather have my rifle caliber perform more like a rifle than have pistol caliber energy. Ill sacrifice a few dbs for terminal ballistics any day. Thats just my mileage.
Totally understandable, Ill take the DBs, and I'll get a barrel that gets me closer to 357 Magnum energy. But it's whatever suits you, that is why there are so many choices. Thanks for watching!
@Barrett you're absolutely right about that. Thanks for clearing that up as I wasn't very clear in how I said it. But I prefer supers over subs, all things considered.
So what length barrel would get you 357 energy?
Does an 18" barrel work for 300 blackout for hunting???? Thank you.
Speaking of powder for 300 BLK - I have a Canebrake I'm breaking in, and it does feel like I'm lobbing rounds in at 125 yards during my last range day. I have 1500 220gr projectiles that I'm going to find a powder for that will get me a more complete burn out of the 5.5" barrel...hopefully. Ultimately my goal is to dial in Subsonic rounds close to 1000fps, specifically for the Canebrake.
That's gonna be totally doable, subs are loaded soft to stay sub out of longer barrels
What i thought was weird is the new B&T integrally suppressed 300 blackout bolt action rifle has a 1 in 8 barrel twist rate.
Primary reason I don't have one. Thanks for watching!