benman - you are "the man"
I use this example. The folly of momentum is that it is a linear calculation. If I tossed a 16 lb. (112,000 grain projectile) bowling ball at you at a speed of 2 feet per second it would have more momentum than the 45 ACP, but would have zero penetration and almost no knockdown power. At the other end of ridiculous - if comparing bullet weights and loads with equal kinetic energies I'm sure that if I could get a grain of sand traveling fast enough (hypothetical - it would melt first) it would boil flesh and vaporize bone. Given a choice I'd take a hit with the bowling ball. Regards, Keys