Don't see much talk here of performance under great stress.
..but a lot of discussion about bullet placement...and paper target shooting.
I want a caliber that...if I'm lucky enough to hit the aggressor once under 'stress' ..it might/will stop him immediately if not sooner. Isn't that the whole point concerning carrying a handgun for defense?
I've carried mainly a .45 acp for many years for that very reason.