Re: Compressed air trapped in the hollow cavity of SMK ??
i think the main thing you're seeing is the second reason that meichele described. animals, like humans, are mainly made up of water. as a bullet hits and delivers a shock wave, the water acts as a medium for it to travel throughout the body. the most simple way to test this is with an aluminum can. take 2 out, but fill one completely with water, and shoot them with something small and slow- such as a 38spc. the empty one will just leave a hole. the one with water though will probably get shredded like a piece of paper. obviously a can is not going to let something like a semi-wadcutter expand at all, but its the shock wave that does the most damage. look at picture of a bomb going off. before the firey explosion hits anything, the white ringed shock wave gets to things first, and inflicts the initial damage. thats why i laugh at movies when guys go underwater to avoid explosions. ever see a fish smile when you bang on the side of a fishbowl? water acts as a medium to amplify waves of that type. when a bullet hits the body, the fluid in the body does the same thing.
If it were easy, I wouldn't be doing it.