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Weapons: Suppressing Sound And Such
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January 26, 2012: During the last decade "silencers" for all sorts of weapons (from pistols to 7.62mm machine-guns) have become increasingly popular on the battlefield. Actually, calling these devices silencers is a misnomer. The sound of a gun firing is not silenced but it is significantly reduced, or suppressed, by these tube like devices that are screwed onto the front of the barrel. The more common term these days is "suppressor" (of sound, recoil, and hot gasses blown back into the face of the shooter).

This suppression is useful on the battlefield as it confuses the enemy as to where the fire is coming from. This is often a matter of life or death for snipers, who sometimes use suppressors when the targets are relatively close. Machine-guns will sometimes use suppressors (which have recently become available for these weapons), not just to confuse the enemy but to make it easier to aim the fire. The suppressor reduces recoil and the hot gasses that are blown back into the face of the gunner. Both of these items make it difficult to carefully aim the machine-gun.

The pistol suppressors have been around the longest and are mainly used by special operations troops. But sometimes regular infantry will use them for raids that require that sort of thing.

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Gerry       1/26/2012 8:07:01 PM
The best suppression is when the bullet is slow moving and does not break the sound barrier with a 'crack' when it exits. However this means it has much less striking power.
 
 At least from what I understand from the Vietnam era.
 
 It would be nice to think that they have somehow overcome this.
 
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trenchsol       1/27/2012 12:03:05 AM


The best suppression is when the bullet is slow moving and does not break the sound barrier with a 'crack' when it exits. However this means it has much less striking power.
 
 At least from what I understand from the Vietnam era.
 
 It would be nice to think that they have somehow overcome this.

Far as I understand there are three sources of gun report:
 
1. explosion of the powder
 
 2. sound of guns moving parts
 
 3. crack caused by breaking a sound barrier
 
 I think suppressors helps mostly with 1. There are attempts to avoid 3. by using heavier subsonic bullets. Physics states that kinetic energy equals mass times velocity squared, all divided by 2. So, one can compensate lower speed with greater mass, which means heavier bullets. Unfortunately, bullet trajectory becomes much more curved as the range increases. Bullet travels in arced path which makes aiming difficult.
 
DG
 
 
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