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Originally Posted By The Beer Slayer:
Quoted:
rifle muzzles normally climb during recoil and muzzle breaks vent gas up (like a retro rocket on a space ship) the are designed to vent enough gas to keep the barrel on target during recoil.
if you turn the break upside down (so the vents point down) the gun will recoil more and if your shooting prone it will blow sand and grip all over the gun.
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as i understand it rifles move back directly in line with the rifle. if the barrell is level the rifle directly rearward. The muzzle rises due to the grip on the rifle. looking at my brake it vents gas out the sides agled rearward evenly.
I'm not an expert just my understanding of how it works
mike
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OH MAN! I forgot the pistol grip acts as a moment arm. My college physics professor will kill me.
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Yup. If you were placing the buttstock against your shoulder, and holding the rest of the gun only by your left arm (on the handgaurd), it would be a truly linear system of movement. However, when you add pressure on the grip, which is under the "line of action" (I forget what the word I'm looking for is), you will create a small moment upon the point of your hand, bumping the gun up a bit during firing.
The only way to have a gun that "does not move" at all is to divert the ENTIRE pressure of the bullet back on the bolt. Since pressure is caused AFTER, and not DURING firing (b/c it takes a small time for the gas to come back and hit the bolt), you feel the pressure. Even then, all that bolt pressure will but pressure on the spring/buffer, which will in turn be redirected to the buttstock and your shoulder. You would have to be moving forward at a certain acceleration, dependant on body weight, to have the gun, in one instantaneous moment of time, "not move" - although I doubt you could either visibly see or calculate this level of acceleration. Until then, you can only control the Sine of the bullet's vector (muzzle rise), not the Cosine (backwards recoil) through brakes or compensators. Nice try though.
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