Thread: Knockdown power

Originally Posted by Moa Hunter

Something that i haven't seen differentiated here is Foot pounds of energy and Momentum. They are not the same but get confused in the maths and in the Grants book because projectile Momentum has an equal recoil equivalent and it is momentum in the cricket ball that rocks the 'saw horse' deer. FPE from velocity is what produces the temporary wound channel and tissue disruption resulting in a shockwave that can cause instant collapse. Sustained Momentum results in penetration without the shockwave / temporary wound channel.

Greetings Moa Hunter,
I got pulled up on this once before so can't help much other than I believe that the energy transfer is through momentum. At the end of the day we need a projectile that will penetrate sufficiently to reach the vitals and sometimes enough expansion to sufficiently damage the clockwork to cause a quick death. Both of these relate to projectile construction more than to how many foot pounds force or Joules of energy it is carrying. We would be better spending our time looking at the projectile and matching it to velocity and game hunted rather than fussing over the exact energy. Micky has alluded to this previously.
Regards Grandpamac.