I know for a fact that proper 10mm loads down big
feral dogs instantly with a chest hit. I also know for a fact that 230 gr .45's and 147 gr 9mm's do nothing of the kind. I'm talking nearly a dozen each of such shootings, not just one fluke. Anyone can prove for themselves that a decent 10mm load is one bad mf, as far as pistols go. IN fact, if you load it right, it hits almost as hard as a 223 sp from a rifle barrel, and ties the softpoint from an M4 barrel.