Thread: Suppressors - Am I missing something

Basic physics, every action has an equal and opposite reaction.

1.- Bullet pushed forwards, gun goes backwards.

2. - Fast gases forwards, gun goes backwards (think rocket). No. 1. is easy to understand, but the fact is that "gas has mass", and it escapes a gun at very high velocity!

3. - Fast gases enter a suppressor and are slowed, cooled (read: de-expanded) and released more slowly forwards, gun pushed more gently backwards. All suppressors lessen and soften recoil in this way.

4. - Fast gases are diverted sidewards, gun not pushed backwards or forwards(muzzle brake).

5. - Fast gases actually directed more rearwards, gun actually pushed forwards (rearward deflecting muzzle brake). [NB the effect of "1." still applies.]

Interesting case studies:

- With a flat crown barrel, a fair amount of the escaping gases exit at 90degrees and so do not contribute to recoil.

- Lee Enfield no 5 Jungle carbine, has a rocket nozzle shaped flash hider / muzzle shroud and so even naturally sidewards escaping gases get directed forwards... and thus much greater recoil is felt than when the flash hider is not attached. Not ideal for a very light rifle, but again, in addition to being an effective flash hider it also directs much of the blast away from shooters' ears.

Hope that is helpful.

Thinking... why not have a rearward deflecting muzzle brake and have it enclosed in a can? Sell it as an integral muzzle brake suppressor.

The gases, as escaping from the barrel would initially be directed backwards in the can.... No, really! Sounds like Baron von Munchausen pulling himself up out of the swamp.

Originally Posted by Cordite

Thinking... why not have a rearward deflecting muzzle brake and have it enclosed in a can? Sell it as an integral muzzle brake suppressor.

The gases, as escaping from the barrel would initially be directed backwards in the can.... No, really! Sounds like Baron von Munchausen pulling himself up out of the swamp.

Attachment 76188

That is exactly what is being discussed is it not?

Originally Posted by veitnamcam

That is exactly what is being discussed is it not?

@veitnamcam

I suppose it is. Let us see,

(A) gun pulled forwards as gases are spit backwards inside the can.
(B) gases slam into back of can and the opposite effect is obtained, cancelling out the first effect in flash.

Yes, that pig tail is taking a lot of strain.