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Suppressor Tutorial

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Unread postAuthor: squidchicken » Sat Mar 26, 2011 7:02 am

is there an effective way to silence a pneumatic cannon, mine is quite loud
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Unread postAuthor: jackssmirkingrevenge » Sat Mar 26, 2011 7:48 am

There's plenty of advice on sound suppression if you Imagesearch. The designs illustrated in the video that is the subject of this thread can be adapted to pneumatics, though you should focus more on volume.

You might also want to look at your chamber:barrel volume ratio, excessive chamber volume will give you a substantial noise increase disproportionate to the power gain. Increasing barrel length will also increase power and reduce noise levels in most cases.
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Unread postAuthor: mark.f » Sat Mar 26, 2011 8:57 am

Just to kick up an old thread:

If we're going for the cooling of propellant gases, why the steel wool, instead of something both more durable and better at absorbing heat, like Chore Boy, unless you're on probation and like buying flowers for your girl as well? :wink:

Otherwise interesting video.
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Unread postAuthor: jackssmirkingrevenge » Tue Apr 24, 2012 1:53 am

hehe this is brilliant

[youtube]http://www.youtube.com/watch?v=haiqFcIXTqs[/youtube]

Much better than the soda bottle adapter :)
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Unread postAuthor: pneumaticcannons » Tue Apr 24, 2012 4:49 am

Thats amazing!!!! :idea: I was surprised the thing didn't blow up on the first shot...
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Unread postAuthor: jackssmirkingrevenge » Tue Apr 24, 2012 5:37 am

Interesting, it was being advertised as a "Solvent Trap" to "capture the solvent and oil splatter that results when running a brush through from the breech of your weapon."

http://www.cadizgunworks.com/zcstore/

Who knows if that was the original intention then someone shot with it installed, or if they planned it as a suppressor all along...
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Unread postAuthor: jackssmirkingrevenge » Sat May 19, 2012 6:27 am

Interesting online book: http://www.scribd.com/doc/63433263/Mode ... avid-Truby

This is my favourite :D

Image

Using a can made from a 55-gallon oil drum, they intended to silence a Finnish Lahti-Saloranta M-1939 20mm antitank rifle, and blast their way into a supposedly impregnable bank vault using AP shells.

The plot was discovered, and the would-be robbers arrested, before they could carry out their plans.


Here's an interesting design for people wanting to test loud devices without actually fitting a suppressor to their launcher:

Image

Basically 6 automobile tyres in an oil drum...
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Unread postAuthor: POLAND_SPUD » Sat May 19, 2012 10:14 am

Interesting, it was being advertised as a "Solvent Trap" to "capture the solvent and oil splatter that results when running a brush through from the breech of your weapon."
uhmm it's just an adaptor... obviously they didn't want to state openly ->
hey if you want to make a homemade suppressor here is an adaptor
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Unread postAuthor: jackssmirkingrevenge » Sat May 19, 2012 10:30 am

mark.f wrote:If we're going for the cooling of propellant gases, why the steel wool, instead of something both more durable and better at absorbing heat, like Chore Boy, unless you're on probation and like buying flowers for your girl as well? :wink:


Hehe from the book recently linked to:
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Unread postAuthor: jackssmirkingrevenge » Fri Sep 07, 2012 1:33 pm

One for the real engineers amongst you: http://www.dtic.mil/cgi-bin/GetTRDoc?AD=AD0384956
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Unread postAuthor: Fnord » Sat Sep 08, 2012 6:44 pm

Introduction

The general noise problem of the so-called "silent" or "low-signature" small arms weapons may be classified into four categories(/snip)


...The fifth possible category, the objections of the human target to being fired upon, naturally was omitted.

:D

I skimmed through it. There's a lot of relevant data there for the 'shut-off' suppressors you've been messing with lately.
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Unread postAuthor: jackssmirkingrevenge » Sun Sep 09, 2012 12:29 am

Fnord wrote:...The fifth possible category, the objections of the human target to being fired upon, naturally was omitted.


hehe I saw that!

*pffft pfft*

"I beg your pardon, did you just discharge your firearm into my person?!"

:D :D :D

I skimmed through it. There's a lot of relevant data there for the 'shut-off' suppressors you've been messing with lately.


Here's an even more pertinent document related to "pressure sustaining cartridges", wonderful stuff: http://www.dtic.mil/cgi-bin/GetTRDoc?AD=AD0334799
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Re: Suppressor Tutorial

Unread postAuthor: jackssmirkingrevenge » Tue Jul 22, 2014 8:22 am



New shotgun suppressor from Silencerco, seems they got it down to the level of a suppressed 45 pistol, no mean feat.
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Re: Suppressor Tutorial

Unread postAuthor: mobile chernobyl » Tue Jul 22, 2014 8:54 am

jackssmirkingrevenge wrote:New shotgun suppressor from Silencerco, seems they got it down to the level of a suppressed 45 pistol, no mean feat.


At what cost to muzzle energy? I wonder how much they've decelerated the round in their efforts for silence
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Re: Suppressor Tutorial

Unread postAuthor: jackssmirkingrevenge » Tue Jul 22, 2014 9:13 am

I would say the majority of shotgun loads are only a couple of hundred feet per second above the speed of sound anyway, so you can make subsonic loads with a bigger shot load to compensate.

Edit: besides, you can always dump the mag:



poc poc poc!
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