Silencer


Is this the first or only movie to use a somewhat accurate sound effect for a silenced pistol? Do any film buffs know what the typical 'silenced handgun' sound really is? is it like the blasters in star wars (banging a wrench on telephone pole support wires)

reply

You bring up a good point - there is, I think, the typical "Hollywood" silencer, which sounds rather loud and is used as a cliche in action movies (i.e. Die Hard 2, Cliffhanger), but the more accurate silencers I have seen are in Goodfellas (when Pesci kills Stacks Edwards) and Casino (when the mob bosses are killed at the end), giving a more kind of muffled "thwack" sound as opposed to the crude "pyoot" kind of sound (sorry, those are the best representation of the sounds I could come up with). I'm glad someone else brought this up, it's always kind of struck me as unrealistic, although I've never heard what a silencer sounds like in real life.

reply

And I hope you never do. :)



"Sit your five-dollar ass down before I make change."
www.hardacrefilmfestival.com

reply

[deleted]

Thanks for the reply to my commentary, Bruce. By the way, your movie sucked.

reply

The only silenced pistol I've heard was a suppressed Ruger Mark II, much like is used in this film. It was being fired indoors into a sand-filled 55 gallon drum, so I don't know how much the environment was a factor; but the sound was remarkably similar to a garden variety pneumatic pellet gun. My impression was that it was a trifle louder than said pellet gun; but the sound was otherwise identical. My suspicion is that the slight increase in volume was due to the cement walls.

reply


Hah, "pyoot" is EXACTLY how I spelled it as a kid!

'course nowadays they have youtube videos of silenced pistols - some of them actually seem to make the guns LOUDER, and NONE of them make that "pyoot" sound

(they all still sound like guns - just quieter)

Wonder where that "pyoot" sound came from? Wilhelm maybe?

reply

correct me if i am wrong, but I think different guns with silencer will sound differently. so u really need to find out which model of guy in use to start with.

reply

I agree. I've heard the difference between a suppressed Browning Buck Matk and a suppressed Ruger Mark II. The Browning was quieter BUT it still sounded like a airgun...a weak airgun but still nothing close to silent.

BTW - I own a Buck Mark minus the suppressor and as far as .22 pistols go, it's not that loud. As to why? Beats me.

reply

I liked the one in The Bourne Identity, towards the end.

reply

First, it all about the projectile traveling below the speed of sound, second, any object that travels faster the sound is going to displace air with the void filling up and making a clap that can’t be silence. The use of a silencer can only be successful by keeping the projectile under the vacuumed threshold. The use of both subsonic 45 ACP's, 9MM's and the 22 subsonic rim-fire would be the prefer ammo used for most silencers. If you were to hit the palm of your hand with fist, that would be the level of sound most subsonic weapons would make. Remember, semi-auto actions let out a small amount of gases by pushing the breech back to recycle the next round, and that would be noticed big time, hence the use of single shot weapons for silence work. Sorry, the use of silencers on huge magnum rifle systems.... are used for movie interest, not possible in real world situations.

reply

actually you can use a silencer and supersonic ammmo but while the blast is suppressed the sonic boom of the bullet will still be heard however if someone hears the sonic boom they often think it was the gunshot which leads them to belive the shot was fired 90 degrees from the real shooting point. as was said single shot or bolt action weapons(some people modify semi auto's to not cycle the bolt or slide after each shot also) will lead to the absolute least sound from the ignition of the gunpowder.

reply

WTF?
You do not know your stuff man, do some research!
Both of you!

reply

by - jun19fan40 on Mon Apr 17 2006 09:29:44
--------------------------------------------------------------------------------
WTF?
You do not know your stuff man, do some research!
Both of you!

to what are you reffering?

reply

Well not you so much as the other guy. Gunmakers and gunsmiths make and modify pistols so that the slide will catch, but I guess that is not that big of a deal. What really got me was the other guy and the vacuum threshold, which, I am pretty sure he made up. Sonic booms are the noise heard from shockwaves, which are near instant increases in gas pressure, compression. Shockwaves form around supersonic bullets because the pressure waves cannot get out of the way of each other and form a shockwave. That is the crack you here with supersonic ammo. There is a double sonicboom with jets because the air first compresses, initial boom at nose of plane, and then it goes back to normal, second boom at tail of plane. Basically when air changes pressure suddenly almost instantaneously it makes a lot of noise. Lightning makes such a loud boom because it heats the air up at such a highrate, at at such a high temp and then cools down. The instant expansion and tehn contraction of air causes thunder.

reply

[deleted]

Yeah but it is only accurate to like 300 or so yards. The guy who invented whisper ammo has done a bunch of stuff with silencing sniper rifles. he even silenced a 50 caliber.

reply

YOU are all wrong, the silence threshold conveyed in and of the action chamber
that polarizes the air pocket created by the negative g-force of the metal ion
stabilized by the force field which is propelled into and around the casing of the bullets mega dome shell will enhance a blast force of approximately the
radius of a tangerine thereby causing a vacuum of energy catalyzing the sound of "zfieifej" which disturbes the velocity of incoming matrix.

reply

I see that there's still some interest with the silenced handgun thread?
Notice the 300 Whisper is mentioned....cool! Seen it used during the 80's and 90's in competition.
Great cartridge for silence auto-machine guns in the military and police operations.
Even better when used for standing during pistol silhouette matches!
Very low recoil energy!!!
The 221 fire ball case was opened upped to a 308 cal. and loaded to sub-sonic speeds..hence....not pushing or displacing air so as to leave noticable sound.
Having set upped 200 meter (220 yard) targets for years, and hearing and feeling high velocity rounds pass overhead, ones does hear the vacummed slap of air big time.
Maybe 30 cal.(Any cal. bullet) Boat tailed bullets do slip thru air much more quitly than Flat base bullets of the same calibur and might explaine the sound push BS ?????
Having shot 100's of thousands of rounds during the past 35 adult years, one does have a feeling for the BS concering firearms chit-chat.
God, wish people would get out of tech books and do things in the real world?
Again, smack your fist against your open hand.......there's the sound of a real silenced handgun!
Good luck with your thread,
GunsGirlsCars

reply

It depends on the caliber and ammo. I have a .22 cal silencer and use High Velocity ammo. Subsonic ammo takes the sonic boom away and makes it much better. A silenced pistol sounds like a pneumatic staple gun. If you put some water in the silencer it is MUCH MUCH more quiet. See these links for videos and audio:

http://www.serbu.com/sirispg.htm

http://s9.photobucket.com/albums/a67/the-reservoirdog/?action=view&current=Tac16.flv

http://www.yankeecollo.com/silencershoot/


Join this forum for GREAT silencer: pics, video, and info!!!

http://www.silencertests.com/silencer-forum/viewforum.php?f=3

reply

im not much of an expert on silencers and such only what licensed military put in their current games such as Metal Gear and SOCOM which come from true sources you can bash me all you want all i wanted to mention was isn't there different silencers for guns as well such as a longer one if you don't want to sacrifice the current range of you're weapon and then theres the shorter silencers that decrease the sound and muzzle flash. well thats all i wanted to add anyway im sure the next person will pick my argument apart and call me some kind of explative lol nice thread tho yea hollywood doesn't always do its homework and i agree the silencers in Casino seemed much more realistic than the generic eagle sounding silencer they use in action movies :p

reply

For anyone who is curious about what the Ruger pistols in the movie would likely sound like in real life, you can watch the following video.

The pistol in the video is a Ruger 22/45 which has a receiver and slide identical to the pistols in the film. Aside from the polymer frame, the primary difference is that the pistols in the film used an integrated suppressors as opposed to the threaded suppressor used in the video.

With Suppressor
http://youtube.com/watch?v=nK7Tq7N5J6w

The same weapon fired without a suppressor
http://youtube.com/watch?v=QYxRi5Fnrzg

reply

Thank you for posting the video and crushing sound debate, it's much appreciated.

I've got a Mark II 22/45 myself, nice accurate little piece, and was thinking about picking up a gemtech for it. Good to see that it has pretty impressive noise reduction.

reply

wow, lots of ignorance in this thread. ANY, and i repeat ANY rifle/pistol (excluding revolvers)/machine gun/yes, even SHOTGUNS can be supressed (silenced is a term popularized by movies) Putting a can ("silencers" are referred to as "cans") on a gun will help reduce sound and recoil, enough so that you can fire the gun without ear protection. Unless you do a whole bunch of other stuff, such as using subsonic ammo, etc, the gun will still make plenty of noise. This might not matter too much in an urban environment, however, since there is alot of ambient noise.

reply

Comparison of the sound of a pistol with and without the suppressor, and with and without the subsonic ammo:
http://www.youtube.com/watch?v=vhwWS5sU1tU&feature=related

BTW, there is a revolver with a suppressor:
http://www.youtube.com/watch?v=vvF4yurWSc0

reply

it's really hard to judge a suppressor's sound reducing ability on videos.
in my experience it really depends on where you are shooting.
the only calibers i have experienced suppressed are 9mm, 45acp and .22l.r.
with 9mm subsonic and .22l.r. the sound of the bullet impact on target was usually louder than the muzzle signature of the gun... this obviously depends on the target too!
one thing is for sure, it will never sound like "fyoot" but rather make a muffled blast.
A 9mm suppressed with subsonic ammo is notably quiet compared to an unsuppressed 9mm, though not movie quiet. Apart from reducing the noise and flash signature the suppressor does one more thing: muffle/ change the sound of the muzzle blast, so it becomes very hard to recognize as gunfire to the untrained person in a suburban neighborhood not used to having their neighbors professionally offed with suppressed autos during the day;)
So i doubt anyone would call the cops over one or two suppressed 9mm gunshots with subsonic ammo, even if you lived in an apartment. The sound produced is not suspicious enough. It could be a door slammed or a meat tenderizer... etc.
If you intend to blast away like Sly and Antonio in Julianne's apartment without blowing it up in the end a suppressed .22 might be a more suitable approach.

(as has been mentioned before, you need subsonic ammo or subsonic calibers if your goal is to minimize your sound signature due to the supersonic blast. if you simply wish to fire your 9mm outdoors without ear protection, regular supersonic 9mm and a good suppressor will suffice.
there also seems to be an increased use of suppressors on military weapons without the use of subsonic ammo, as this would decrease accuracy, range and power of the ammo. So people will hear the supersonic crack when a suppressed rifle with regular ammo is fired, but they won't be able to locate the muzzle flash and blast as easily! it's a compromise.)

a suppressed .45 is louder than a suppressed 9mm with subsonic ammo and they are both louder than a .22l.r. for the following reasons:
1. the smaller the cartridge, the less powder is in it. therefore a subsonic .22 will sound quieter than a subsonic 9mm or a .45apc (regardless if you compare them with or without a suppressor)
2. the muzzle diameter of the .45 is large, making it easier for the gasses to escape the big bore of the suppressor
3. if say you compare a 9mm to a .45acp suppressor and they both have the same outer dimensions, the bore in the .45 can would have to be bigger. This means that the baffles inside the .45can are smaller and therefore also less effective
So simply because standard .45ACP is always* subsonic and doesn't require special/ expensive subsonic ammo like the 9mm does not necessarily make it a more suitable caliber. (*i'm not sure if supersonic .45 exists. for what it's worth, i don't get it in europe)

A suppressed .22l.r. auto pistol like the Ruger or Buckmark will be very quiet considering it's still a gun.
i've fired a ruger in the cellar and it is relatively loud.
fired it in the garden, while it was pouring rain and you probably wouldn't hear it at all beyond 30m depending on where you are standing (preferably to the side or behind the gun ;))
also fired it at the range and it appeared spooky quiet, because the range "hut" we fire from is well padded and absorbs the sound very well...

A suppressed .22l.r. bolt action rifle on the other hand is almost completely silent.
The main reason being that the barrel is way longer than the one of a pistol, allowing the pressured gasses of the (very little) cartridge to drop a lot more and further cool off in the suppressor.
Also, a bolt action rifle has a locked chamber. This way no gasses/ noise can escape the breach before the projectile leaves the muzzle. All gasses are forced to go all the way out the barrel and through the suppressor.
Also the noise from the cycling action itself falls away... although you can simply hold the chamber shut on a .22 Ruger with your thumb and achieve the same goal ;)

In the end it really depends on what your requirements are!
For every gain there is a loss! Some may consider a suppressed .22 auto pistol an ideal choice for an assassin, due to the low noise.
However in my experience .22s tend to have more malfunctions than centerfire cartridges like a 9mm or .45 and obviously a .22 lacks the stopping power and penetration of a 9mm or a .45

Other pistol calibers suitable for suppressing due to subsonic muzzle velocity, bore diameter and low amount of powder:
- .22l.r. as mentioned
- 6.35mm (old little pistol caliber that used to be relatively common in europe)
- 7.65mm (as James Bond used in his old PPK)
- 9mm Kurz = Short = 9x17mm (commonly found in Walther PPK and PP)

reply

Also, a bolt action rifle has a locked chamber. This way no gasses/ noise can escape the breach before the projectile leaves the muzzle. All gasses are forced to go all the way out the barrel and through the suppressor.


I have red similar statements in couple of threads, and it sounds really wrong to me, knowing that most of the semi-automatic guns, actually semi-automatic pistols, to be more specific, work on a "short recoil operation" principle, which has one specific part to it that affects precision of a gun. Specifically, guns that work on this principle are constructed in that way that power that forces a projectile out of the muzzle, also forces casing to go in the opposite direction, and move on its way slide, compress the spring, eject the casing, reload new bullet, and prepare the gun for a new shot. Now, if the projectile and the casing would start moving in the opposite direction in the same moment, even though the projectile has almost nothing on its way except air and grooves, and casing has slide and spring that make heavier load, and so it seems that the projectile would exit the muzzle before the recoil moves the gun from the aiming position and affects precision of the gun, it actually works differently, and it is an amazing feat of the construction of the guns.

Guns are actually constructed in that way that the casing, and the slide for that matter, stays in its regular (locked) position all the time while the projectile travels from its casing until it exits the muzzle. Angles on the back side of the barrel, the one side that touches the inside of the slide, where the firing pin is, and angles on the slide in that place, are constructed in that way that the force that powder provides for the projectile to exit the muzzle in the speed that it does is also strong enough to create pressure inside of the barrel so strong that slide can not move back. The slide is pressed to the barrel so strong that it can not "slide" from it. So, when the projectile leaves the muzzle, pressure inside the barrel drops significantly, and drops under the threshold that keeps slide in its place, so it than and only then, when the recoil has no effect on trajectory of the projectile, the slide starts to move back, ejects the casing and loads new bullet. Think of it like if you would have so much strength in your hands that you could pull the slide so fast and so strong that it just would not move until you lower the force of pulling the slide and it just then you are able to move it and load your gun. It is purposefully made that way so it does not affect the projectile trajectory, and the calculation of the forces and angles, and weight of different parts of the gun and the bullet in order for it to work properly are, I expect, huge work to fit it all in.

So, in any way, a bolt action rifle, or just a regular gun, or pistol, it does not matter. No gasses/noise can escape the breach before the projectile leaves the muzzle. All gasses are forced to go all the way out the barrel and through the suppressor, whichever weapon you have in your hand. And all this is true even for a gas-operated reloading firearms. They are too constructed in that way that reloading operation does not affect projectile trajectory, and for that to be possible, the reloading operation must start only, and only after the moment that projectile exits the muzzle.

reply

>wow, lots of ignorance in this thread.

That's ironic, given that you displayed some ignorance of your own in your post.

>ANY, and i repeat ANY rifle/pistol (excluding revolvers)/machine gun/yes, even SHOTGUNS can be supressed (silenced is a term popularized by movies)

No, "silencer" is a term popularized by the inventor (Hiram Percy Maxim); he used the term "silencer" in at least one of his patents, and he also marketed it as the "Maxim Silencer". On top of that, the ATF refers to them as "silencers" as well, as do all U.S. laws pertaining to them, including the original one, NFA '34. "Silencer" is the proper term. "Suppressor" is only used by people who erroneously believe themselves to be "in the know", based on the laughable argument that it doesn't really make a gunshot silent, apparently thinking there's some law or something which demands that terms be literally accurate. I wonder if these geniuses are also making up new names for e.g., peanut (not a nut), seahorse (not a horse), Grape-Nuts (no grapes, no nuts), Bombay duck (not a duck), and so on.

>Putting a can ("silencers" are referred to as "cans") on a gun will help reduce sound and recoil

It's impossible to reduce the recoil of a given cartridge; to do so would violate the laws of physics. You can only reduce felt recoil. A silencer reduces felt recoil by acting as a muzzle brake, as well as adding weight to the firearm.

reply