Medusa said:I prefer FN to 9mm in self defence situation 24/7/365
If I am viewing this right, that gelatin test show a little under 10 inches of penetration, which is totally insuffcient for SD use. Assume, say, that you have to penetrate a BG's arm to get to the torso (which is a condition of a fair percentage of SD shootings). The typical male arm is, what, 4 inches thick? Plus the 3 inches of gel pentration which is removed by pushing through the elastic skin on the backside of the arm. This leaves you with (best case senario) 3 inches of torso penetration, no more than a nasty flesh wound.
mbs357 said:Penetration is directly inproportionate to killing power.
Hmmm, not sure what information you are basing this on, but it is contrary to almost all established thought in terminal ballistics research. In fact, penetration is THE KEY component of lethality in handgun rounds. Expansion is just an added benefit that you hope for, but never at the expense of penetration. "Energy dump" is a term made up by marketing people, not engineers. If your statement were, in fact, true, than the end-all be-all of SD rounds would be 12 guage bird shot. After all, it will only penetrate a couple of inches, expending all of it's energy in that span. And yet, it is woefullly inadequate as a SD round. Causes nasty flesh wounds, but lacks the penetration to be effective.