Why Is It Still Loud?
Вставка
- Опубліковано 20 жов 2024
- Demonstrating how suppressors work and why they often do not totally silence anything. The rifle is a .300 Blackout and the suppressor is the Banish 30 Gold.
Note: Apparently, the sound at the muzzle is not just air rushing back in so fast; it's the release of the built-up gases being released, as well. I've never claimed to be a physicist, even though my degrees from MIT, Stanford, Vanderbilt, Harvard, and Yale indicate as much! :-) Anyway, the main point we're trying to make is about why suppressors do not totally eliminate the sound, especially with supersonic ammo, and how that's still a useful thing in many circumstances.
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Apparently, the sound at the muzzle is not just air rushing back in so fast; it's the release of the built-up gases being released, as well. I've never claimed to be a physicist, even though my degrees from MIT, Stanford, Vanderbilt, Harvard, and Yale indicate as much! :-) Anyway, the main point we're trying to make is about why suppressors do not totally eliminate the sound, especially with supersonic ammo, and how that's still a useful thing in many circumstances.
Also there is gas expelled when the round is ejected along with the machine noise as the action works, not a ton but some. Bolt action rifle shooting supers is quieter than semi auto but subsonic in a bolt gun is an amazing experience
I love your channel. I share your videos with all my vet brothers
If you want quiet buy subsonic and then use a suppressor.
@@stevenwilkinson8373most subsonic ammo doesn’t have the velocity, or penetration to humanely take large game tho which is what most people would use a bolt gun for. If you’re hunting, use full power loads
@@hickok45 The pressure is correct and same with cork gun. When I was very young, I had a air gun without a cork. I would put a stick down the barrel to shoot it out. It was slightly louder due to stick causing more compression. It's a wonder that I didn't put someones eye out. A child today might get on the white extremist toddler list for that, no matter their color.
I cannot believe its going on 17 years I have watched this man do the best gun reviews on UA-cam.. good lord where has the time gone.
I remember this channel from way back then as well. Wow, I'm old.
Same..damn 17 years flew by fast 😅
We’re all getting old man
Hickok45 in 4K. Life is good!
Supressors are health and safety devices way more than some sort of tactical doodad. They should be in the same category as helmets and safety glasses, not something you have to pay and get on a list to even own. My family has been in law enforcement for generations and the most common health issue among our middle aged guys is hearing loss.
I agree but if the goal is safety the problem is with a silencer 99% of the time you are still not hearing safe, especially indoors and unless you have something like the state of the art and very expensive Huxwrx Flow 556K, you now also have the health risk of breathing all the carcinogenic and otherwise toxic gases that blow back into the shooter face with a silencer. Only way to be hearing safe is the use a really good silencer and subsonic ammo. At that point though you have pistol level ballistics, in other words really, really bad, for the worst emergency of your life. Instead of trying to use a silencer to get hearing safe noise levels from the firearm which requires giving up a lot of it's effectiveness, it is much better to have a suppressed 5.56 AR loaded with good supersonic ammo and staged with good quality electronic ear pro.
It's crazy...in France suppressors are sold without restriction for those very reasons
Great to see Hickok still acknowledging his sponsors in the face UA-cam bullshit. Ha! I love this guy!
So mentioning them is ok, but there can't be description links? YT rules are idiotic.
@PalKrammer they're in the description you butthole
@@PalKrammeryeah that’s about it. He just had to figure a workaround so he didn’t get put in YT jail.
@@meta45354 cry about it
As the bullet leaves the barrel, it has 60,000 psi of air pressure behind it. When the high pressure meets the atmosphere at 14.7 psi, it becomes low pressure almost immediately and releases the excess pressure as a wave we perceive as sound. The suppressor stretches out the time it takes to stabilize the two pressures which reduces the intensity of pressure wave.
it mixes that shit all together and tires out the air until it makes a whimper
The 60,000 psi is only at the chamber. By the time the bullet leaves the muzzle, the uncorking pressure is only about 5,000 psi. The sudden release of high pressure gas creates a pressure wave which we perceive as sound.
It's mostly rifle rounds that get anywhere near that pressure, and not that many of them.
@@sgttomas and calls you daddy
There is also a slight cooling effect on the high pressure gasses. Cooling them a little bit will also reduce their pressure. That is why the first round is usually quieter than subsequent rounds because heat flows from greater heat to lesser heat at a rate proportional to the difference in temperature. There being a greater difference in temperature for the first shot, more heat flows from the gasses into the metal of the suppressor.
This phenomenon is also why squirting a little water into the suppressor to coat the inside and draining out the excess will make it more effective. The vaporization of the water will extract heat from the gasses. My experience with a friend who has a suppressor for his 45 a cap pistol indicates this trick is only good for one shot.
Some people take this to the next level and put some sort of gel into the suppressor because it has a tendency to last for a few shots. Most are using a gel that their intimate partner may be familiar with, but I have heard of some electricians claiming that wire pulling lubricant also works well.
About a month ago I got to both see suppressors in action and shoot them for the first time ever, it was a friend that brought a bunch of NFA stuff to the range, and it was the first time I got to see these things in action in person. He had sbr's chambered 9mm, 5.56, and 300 Blackout, and with suppressors on them they were still as loud as firing a 22 rifle without hearing protection but I could tell that the majority of the sound was the bullets breaking the sound barrier and cracking the atmosphere. We didn't have any subsonic ammo so. But yeah, that was pretty cool finally getting to see suppressors in action in person and even shooting Firearms with them on them 😁
Here in the US silencer use is viewed in the movie world as associated with nefarious activity. In the UK 50 years ago it was considered polite to keep down the noise.
It is still considered polite. Visiting London, I stopped by the Beretta boutique store to check out side-by-sides and was surprised to see a selection of suppressors for sale.
@@EdwardDuran-e1vin London no less. I'm impressed.
The UK huh
Hows all that going?
@joeyripswell It's probably still going great. In the U.K. altogether, there were 28 homicides using firearms in all of 2022 and 2023. There were probably that many in America just today.
@@EdwardDuran-e1v
Seems kinda fkd up lately
I love how Hickock calls himself a "retired teacher." Lol. He hasn't stopped teaching for a minute. His classroom and students just changed. Haha
If only our politicians understood that supressors weren't assassin tools
but guns are lol
@@JosephCarpenter-i9wso are knives, so is a Paracord, hell, your hand could be too
Maybe not YOUR hand
Oh they know. They also know they are required in some other countries. They just don’t care. They are gun related so anti gunners are going to vote against it. Gun control in the US has never been about safety. It’s why they have tried to outlaw firearms safety training as well. It’s about control and especially controlling minorities. Gun control in the US is based in racism.
@@phonkequinox2602yeah but out of all of those guns defo are the most dangerous and easy to use
As always, your clarity of content is why everyone loves your vids! Keep it up!
I just turned 60 in June, and the lesson was fantastic and I never realized how the noise WAS created , but I do now!!
Except you don't because there is no such thing as gas rushing back into the barrel. Gunshot noise is due to the rapid pressure release when the bullet exits the muzzle.
It’s that whole sound barrier 😮thing
🛩
It's still incredibly stupid that I'm required a muffler for my car, but if I want basscily a muffler for one of my firearms. I have to pay an extortion fee along with waiting to get my stamp for one on top of paying for it
That's because you car is not potentially a weapon of mass destruction.
Oh wait.... Never mind
Government infringement upon the 2nd amendment. Remember, "No amendment is absolute." Joe Biden. He's the one who swore to preserve, protect, and defend the Constitution of the United States.
@@sebastiend.5335
I’m sure you would agree that an automobile in recent years has been used as a mass casualty tool.
@@orangejuice4332I believe that was his point. You must have missed the “Oh wait……Never mind”?
😂 well. Just take the car silencer and add it to your rifle! Oooor, use the Kentucky silencer. Made it out an oil filter. 😂
Imagine how amazing it must be to be this guy's grandchildren. He's such a nice guy
To give all bandits and desperados a chance to flee from Mr. Hickok.
Awesome video hickok45, God bless y’all
Boolet speed goes bang. - Eugene Stoner, 1969
Excellent explanation! Simple and to the point!
FWIW, the noise level of the sonic crack depends upon the size of the projectile. I measured the sonic crack of a 30 caliber bullet with Mr Alan Paulson (author of the book, "Silencer Performance and History") and from ten feet away, the sonic crack was about 155 dB.
We also metered the action noise of an AR15 and found it to be approximately 114 dB.
A good suppressed, subsonic 300 BLK should run in the low to mid 120's. (122-125 dB).
For comparison, unsuppressed full power, supersonic 300 BLK will be approx 165 dB.
it really dont make any sense why cans are so dagum regulated and expensive!!! all of those you typed with the can on are still way above the hearing damage threshold and to me they orta come factory option on any larger noisy caliber rifle. My hearing was damaged as a child from not wearing ear protection. if we had suppressors back then it would have definitely saved more of my hearing.
@@MrChevelle83 The regulated part has to do with your laws. The expensive parts has to do with the associated $200 tax. Where there is no tax and little regulation, silencer can be offered very cheaply. However those models are nowhere near as good as US designs.
There is a difference between constant noise and impulse noise. OSHA says 140 dB is the limit for hearing damage from impulse noise. The majority of silencers are below the hearing damage limit ... except the flow through models, which are all really loud.
@@ExpatriotSilencers 140db is ear busting where i work osha says 85db requires hearing protection
@@MrChevelle83 You are confusing constant noise with impulse noise. The OSHA limit for impulse noise is 140 dB. The quietest silencers in the world meter around 110dB, at which point all you hear is the firing pin drop. Impulse noise and constant noise are very different.
@@ExpatriotSilencers 140db will still damage your hearing no matter what, if you had a rifle at 140db and fire it just several times a year it will eventually cause hearing loss.
Awesome!
I am liking these shorter vids where there is some philosophical mixed with decades of experience and some fun shooting of a specific firearm. I know... the longer ones did that also but for some reason these shorter ones resonate with me. It is like talking to a friend I guess where we share info while enjoying looking at/shooting our firearms. Something unusual always shows up and we all want to hear what each knows about the thing LOL.
GUN GRANDPA with modern toys is awesome. You the man sir thank you for all the hard work and info you put out.
It's good that he's educating everyone on the 3 sources of "noise" from a firearm.
Except it's bad he doesn't know what he's talking about. There is no such thing as gas rushing back into the bore.
@ExpatriotSilencers There is additional back pressure. A 22 with a can on it gets filthy way faster. The bolt of a semi-auto does hit back a little harder. So, while it's not necessarily gas rushing back in, a blanket statement to say he doesn't know what he's talking about seems a little harsh... based on your UA-cam account name, I'm assuming you sell them. FWIW, you catch more flies with honey than you do with vinegar..
@@TexasNEV No, I've been designing and testing them for near 20 years. I wasn't trying to catch any flies, only to correct a fairly silly idea.
@@ExpatriotSilencers I'm just saying politeness goes a long way. You're not winning over any potential customers w/ this.
Great episode. To get something as quiet requires multiple solutions, first speed of the bullet, gases from burning powder and finally mechanical sound of operating parts. Subsonic is primary, but suppressor design is important, plus a clanky gun is a clanky gun. No longer an active shooter, but have a modicum of experience.
I’m so happy the video quality is higher than 1080p
I love hickok45!
Wow. Learned something new today! Thanks Hickok!
Hickok45 the teacher. Thank you ❤
I know suppressors are fun.😂 love your channels man keep up the good work.
Excellent work as always gentlemen.
Thanks for your Island of Sanity 45!!!
Very happy to see your channel back on. Your ads I would happily watch rather than miss.
Continue the valent efforts you guys do. Sub'd.
i pay for premium to avoid ads and skip all the ad reads for sponsors but not this one. enjoyed watching every second. i bet his sponsors really love him 😅
What a great morning to be watching , having a coffee with honey again, hahahaha. The humidity is high here in 🇨🇦 , but its still better than winter, in my books. That's one powerful cartridge. Take Care and Be Safe
I just had microwave pancakes with fake maple syrup! Gotta love married life in America.🇺🇸
In my Ruger American Ranch bolt gun, the 300 blackout is movie quiet with subsonic loads, but with the same ammo in any of my AR's it's noticeably louder due to the gas being diverted back into the bolt and of course, the bolt opening and letting sound escape from the breech. That having been said, it's still quiet. I love them the most is when I'm shooting my 300 Win mag... And everyone around me agrees.
I have 1 that I use in Texas while hog hunting. Witch is mostly done at night.
That silencer is scaring me, reeeee.
With .300 Blackout its actually a delicate balance. Shooting 220 grain subs out of a barrel that long may not be sub sonic anymore, depending on the ammo. 220 grain subs out of an 8.5 inch barrel, with a good can, like the Trash Panda or Thunder Chicken, is indeed really damn quiet. The longer barrel builds more pressure, sending that round out a lot hotter, thats why 7.5 inch to 9 inch is the sweet spot for .300 BO. It was meant to be shot out of a short barrel from the get go. If you want to run a 16 or 18 inch barrel AR, just run 5.56
I have .300 BLK in both AR and bolt actions. In the bolt gun (16") the subs are much quieter than a sub 22LR round, in the AR you have the sound of the action opening and closing, which is pretty loud. Just take an empty AR, no mag, no bullets, with the bolt locked back, and in a quiet area hit the bolt release. It`s loud ain`t it? My suppressor is one I made on a Form 1 with modified K-baffles and a large chamber.
@@bbivens8263 The action noise of an AR15 is approximately 114 dB.
Sir, You are so easy to listen to. I have enjoyed this lesson. Thank you. DD
You have taught more people in your videos then anyone else. Keep up the GREAT job!
My 300 BO is just as loud with sub-sonic as it is with supersonic! The only time I can notice a difference is when I have it on my ar pistol, 10 1/2" bbl. It knocks the sharp crack to where I don't have to wear ear plugs. It is a Harvester! My son's, shooting the same sub-sonic ammo is quiet enough you can hear the action cycle!
Great video thanks for the information on that and nice rifle thanks for sharing Hickok45
Looking into buying a Banish 30 Gold suppressor and low and behold u do a video using one today. What a quinky dink.
I sent the paperwork in several weeks ago for my first suppressor. Well actually I ordered 2. I thought it was super fast these days? I'm getting excited and tired of waiting!
Beautiful Rifle, Hickok! Love the roll marks on the right side!
Love you guys! Thanks for the show!
I had one of those ping-pong ball guns, too! My younger sister and I got those (as well as another very noisy "marbles in a baffled plastic tube" toy) for Christmas when we were kids. I think it took about five minutes for my mother to point and yell, "Play outside!!!!" 😀
Just re subscribed, don't remember unsubscribing
I had a suppressed sks 7.62x39 round. And the shooting range supervisor commented it was as quiet as a .22 rifle. It was also much louder without a suppressor.
Good if you dont wanna wear hearing protection when shooting.
In my opinion seniors are the only ones who should have a significant social media presence.
suppressor isn’t built to be as silent as them movies says. suppressor just slow down the gas release from the barrel
A sound suppressor is essentially a kinetic energy trap.
Subsonic ammo is pretty darned quiet. Thanks for making this point.
This is exactly what polititions SHOULD realize, but don't want to admit. It is hearing protection and banning them is NOT for public safety.
Love all of my suppressors. Best things ever
I had one of those toy guns too. Yes, I’m old. The ping pong ball went down a cellar entrance outside and a squirrel was down there and I was afraid to go get the ball. 😂
Very very good to have for firing in doors! An open AR with SS ammo fired indoors is unbelievably loud especially with a shorter barrel
Good job Hickok .
In the military suppressors are mainly effective in the hiding muzzle flash, the noise can give up a general firing direction but the muzzle flash can pinpoint the shooter.
You know who I like? Is BUD'S GUN SHOP! Unrelated to this video, but BOY DO I ENJOY BUD'S GUN SHOP!
Did you say,”BUDS GUN SHOP”?
From some testing I’ve seen in most cases that have tested this the suppressor will actually give a little more velocity to the bullet. And the work that the suppressor actually does is to slow the gas flow down before leaving the muzzle to give it time to cool because introducing hot gas to cooler air temperature will cause a loud bang. The hotter the gas and the more volume of it the bigger bang. Most people think that your hands hitting each other when clapping your hands is what makes the sound. But it’s not. The air rushing out from between your hands is what causes the sound. Just like a gator or crocodile slamming its jaws together, the air rushing outwards is what makes the popping sound. At least the majority of it. That is kinda what he is alluding to when he mentions the popping sound of the air rushing back into the muzzle. I must warn you that I’m no expert on this topic and may have not worded everything exactly as it should be.
It's not the mount of energy released but the speed at which that energy is released. If someone holds up.a pillow or piece of foam and you clap your hands over that, the noise is considerably less even though the energy release is essentially the same.
I own and use mine regularly. For my own enjoyment, and less noise pollution. One thing I was not aware of and found disappointing was the dramatic decrease in accuracy with subsonic 300blk once you get passed 60 yards or so. Just a heads up.
I use 220 Federal subsonic and they drop quickly , but you can allow for that to 100 yards . They're 60cents plus tax a round .
The speed of the boo-lit lmao, glad to see you guys still making content
Never thought I’d teach Hickok 45 anything, but the loud report of a firearm is the SUDDEN release of HIGHLY pressurized gasses. A suppressor “muffles” this by slowing the release of the gasses. It’s the same thing that makes a firecracker go bang.
And the sonic boom, or crack made from the bullets high speed!
Makes sense. I can just never forget how when I stick a muzzle loader barrel down in a bucket of water with the muzzle up. When you run a wet patch down the barrel and suck up the water to clean the barrel and pull the sealed patch out really fast, it pops very loud, almost as if firing a gun. The air rushing back into the barrel causes a very loud snap. Seems that THIS would be some of the same effect when firing a bullet, but maybe not.
@@hickok45that would be the case for a muzzle loader because the chamber is sealed and the patch can create suction while using the patch. But with any rifle being fired, the pressurized gas will expend out the muzzle until pressure is equalized, there won't be any suction to draw gas back into the muzzle.
@@hickok45 True, but the difference is when pulling a patch out you’re creating a vacuum. In the case of a firearm it’s pressure. Love your videos 👍
@@hickok45
Cool. I'll bet that's fun.😆
Thanks. I learned something new today.
And for those that don’t know, a majority of the time subsonic ammo wont cycle an AR and is still loud. Have to say that because people buy it and shoot it without a can which is hilarious.
Don't worry about not being "the expert." The "experts" are still trying to figure out how to disassemble a glock.
So how they actually work is that in a supersonic load there are two things exiting the barrel at supersonic speeds, the projectile and the gasses. In a subsonic load there is still one thing that is exiting the barrel at supersonic speeds and that is the rapidly expanding gasses from the cartridge that that pushes the bullet out. Because these gasses are still supersonic you still get the sonic boom from those gasses. The suppressor acts as a speed reduction device for the exiting gasses getting them redirected and slowed to subsonic speeds when they exit the barrel/suppressor. (there is no gasses rushing back in) The greater the reduction in the speed of the exiting gasses the quieter the firearm will be. It can get so quiet that the sound of the action is the loudest sound that the firearm produces followed by the impact of the projectile. There is always a trade off however in that to get the quietest possible one needs to reduce barrel length and replace that with suppressor length while keeping your bullet subsonic. I carried a fully suppressed HK MP5 for 4 years and it was completely silent but the barrel was only about 4 inches and the integrally firearm was essentially all suppressor but that resulted in an additional loss of velocity. But this was all for close range and the bullet weight was 146 grain at about 850 fps.
Apparently, I snore so loudly that
I scare everyone in the car I'm driving.
😴 😂
😂😂😂
Brilliant
My grandfather had that same problem 😂😂
🤣🤣🤣🤣good one🤣🤣🤣
I love this.
Another great video, I'm looking forward to seeing you get your hands on the new Smith & Wesson M&P Bodyguard 2.0 from Bud's. I got mine from my local gun shop Wednesday and I'm reloading like a madman to go to the range and break it in next week.
Ha! The ping pong toy guns! They were cool! They were red and a lot of fun!
I've subscribed to your channel.
Hey Hickok!!! I had some of those red rubber pingpong ball shooters!!!
Heej utube! The like button don't work here !!
As always, I like your vids, mr.H.&Co. !!
Suppressors look cool too!
The noise of muzzle blast and sonic crack are two different noises.
1. Low powder charge to get bullet under the speed of sound will lower the blast pressure. Which turn lowers the sound.
2. At Subsonic bullet velocity, you do not hear bullet Crack, let's say at 100 yards.
I'm baffled.
😂
So is his rifle. 😆😆
Nice video
Vacumm over overpressure as atmosphere fills the void of the muzzle after the slug exits. Makes sense
Did you hear that NFA?? The purpose of a suppressor is hearing protection.
It was obviious, but you have to buy specifically subsonic ammo for it to be relatively quiet. Supersonic ammo will still be loud since it makes a mini sonic boom when it leaves the barrel.
Nice. I'll take it!
Thanks for the info...
Anyone notice that Hickok’s AR lower has his name engraved, I think that’s cool and now that I’ve seen it I should get an AR lower with my name on it.
It was a gift many years ago.
Nice stock, I’ve got the same MFT on my DDM4
As others have no doubt mentioned (and I'm too lazy to scroll down thru nearly 600 comments to verify) - the 45ACP has subsonic muzzle velocity but STILL ain't "Hollywood quiet" through a suppressor.
My quietest suppressor setup is my Henry 45 Colt lever rifle. 325 gr. slugs at 1000 fps are air rifle quiet! Sound from the hit steel is crazy loud!
new vid.? wow you guys are working hard. / Thanks
Keep up great work 👍...
Most knowledgeable teacher saying,,he's not knowledgeable, 😊" life's good at hickok"
Why are your backup iron sights mounted backwards?
To me, the most logical way to explain the muzzle pop is to compare it to a firework, mortar pop. You get an ignition source that launches the projectile, and then a report (crack, pop, bang, boom, whatever) after.
I am not quite sure I can agree with this whole thing. The supersonic vs subsonic part, yes, that is it mostly. But I have a problem with the "air rushing back into the barrel" part. When the bullet leaves the muzzle, there is still a lot of pressure in the gun. There would have to be or the bullet would start slowing down. Your example of a muzzleloader being cleaned isn't a good one because that IS a case of a slight vacuum, as you described it. I think it's a combination of the bullet and the powder gasses, which themselves have a velocity of something like 5,000 fps. There's just very little of them so their contribution to the noise is slight.
I was waiting for a rendition of "Pop goes the weasel" ending with the index finger in the cheek!
Great video
One also gets sound coming out of the chamber when the bolt opens to eject the case.
I suspect that with semi-autos there is only so much that the sound can be reduced (for the shooter) for that reason. I think it was Garand Thumb that was testing absurdly long suppressors, and while the sound level at the muzzle did decrease, the sound level by the shooters ear remained the same,
An interesting test would be either to test the same suppressor on a semi-auto and a bolt gun, or on a semi auto that is capable of having the gas system turned off.
I swear my suppressed .308 bolt gun is "more suppressed" than my suppressed AR.
Yes i had one of the red rubber pop guns back in the day years ago .
Wish I knew where the one I played with went. My grandparents had it and my brother and I could slam some wicked velocities out of that thing. Great entertainment! 8:52
Ballistol is excellent ! I use heaps on firearms and around the garage too .
Even with no subsonic ammo I still think it's hearing safe .it's much better then with no can
Aaah OK. Now I understand. Thanks you for clearing that up for me. How much pressure does a suppressor take away from the recoil on your shoulder?