My reason for starting this discussion was the advice I have been reading for new shooters, seems an apparent disconnect between what is really needed for the civilian self-defense weapon and what is required for military or law enforcement.
Sure a larger caliber, longer range weapon is needed in certain situations. (Why not carry a Mosin-Nagant 7.62x54 sniper rifle?)
I can guarantee that a drugged, deranged or determined attacker can "shake off" ANY handgun caliber hole in him short of "turning off the electrical switch".
Personally, I am more likely to carry my 20 oz. snub-nose all the time versus lugging a 3 pound 1911 until I get home or to my office and tossing it into a drawer.