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Originally posted by Overkill:
Guys...!

Okey the reason to this topic that I have start is. We have talked about "stopping power" and then some guys have said that the bullet can not hit harder than the recoil of the rifle. "If the recoil cant knock over a barrel full of sand then the bullet cant"

But now I see that it was just shit talk Those guys who have said that dont take this bad.

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Hello overkill
In my last post, and I can't even remember where, I think here, have serious sleep disorder>>deranged mental capacity, but have been thinking about this however inadequately. I think the guy Herald or Harald? forgot, I be sad mfer, is probably the one can explain best. BUT, I still no slouch in figuring out category, please try to find my last post. You said earlier that you had a source that said recoil would equal bullet energy impact. Please scan and post.

There is the 'equal and opposite" thing, integrate the force over time, ya gonna get energy, the bullet just delivers its energy a hell of alot quicker. My last post deals with effects of caliber, speed, and energy sink over time-a very important variable-Probaobly THE most important, the other two are just what variables in the equation of energy sink over time.-been paining my brain on this, sad that I have to-it's getting daylight out, and just woke from short 'nap'.
But specific hit, specific animal etc. etc., ya ain't gonna be able to analize, ya ain't gonna be able to spell worth a sh*%t that's where it just gonna be empiricle data, take what ya git, or not. I always take what data there be, otherwise, ya be fool. Data be nice thing if ya can understand.
rob the vodka soaked data lover

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Originally posted by Wes:
The bullet has the same momentum as the rifle but a lot more kinetic energy (see previous). A .375 makes about 45 ft.lbs recoil energy in an 8 pound gun, but the bullet has 4500lbs, about 100:1. 300 grains is about 3/4 Oz and the gun is 128 Oz, so that's about 160 to 1. Powder makes 1/3 (give or take) of the recoil energy, so about 100:1 again, which is about right, everything according to plan.

Absorbing a bullet, from an external standpoint, is an inelastic collision (target and projectile merge into one peice and stay that way), so we use the momentum equation to determine the outcome. If it were elastic (the objects bounce off from each other) we'd use the energy. So..

If someone caught a .375 bullet using an 8 pound stick on their shoulder, they would feel a bit less of a whallop than what a what the shooter felt for "recoil punch". Reason being is the shooters shoulder had to launch the powder charge plus projectile and the shooteee just had to catch the projectile. By the way, I'd still rather be the shooter.

Where does all that kinetic energy go? It heats the stick a bit. Shooting water jugs gives the impression of lots of power. Try shooting at a pile of week old spring snow with a .375. If the pile is more than a 3 foot ball of hand packed wet corn snow, it will absorb a (speer 235 at 2900 fps) bullet with absoloutely no observable effect, and the bullet will not emerge out the other side. It's humbling. Made me re-think my plans for knocking off the neighborhood snow men.

Wes

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