[Goldsborough]

. . .and these guns carry the benefit of having more knock down power, or more one-shot stopping power.

Someone has been suckered into spouting off something for which there is no objective truth. All handguns are bad "man stoppers," but all are more convenient than long arms. There is nothing but supposition to support the notion that there is any meaningful difference between the "duty calibers" of 9mm, .40 S&W. and the .45ACP when each caliber is deployed with modern jacketed hollowpoint bullets fired against a human target.



No handgun round fires a projectile with enough velocity to produce "hydrostatic shock" or "knock down power." Finally, the infamous "one stop shot" that is popular in certain circles is "junk science," if such "studies" even rise to that low bar of credibility.

[Mouton]

I agree with your post. There is no one shot sure stop with a hand gun (short of getting to the CNS.) I recall an incident reported in NYC in the 70s when the police and feds fired and hit a subject over 40 times in an elevator with rounds from 380 to 45 cal and the guy still managed to get his hands around the neck of a Narc and almost choked him to death. He bled out eventually.

That said, I personally prefer the sandw 40 and use a Bersa ultra compact as I like the external safety feature. When I was on the job, carried a Glock 19 then a Glock 22 over my last 10 years there. Having used a wheel gun (sandw 19)before that, never became comfortable with the trigger safety...a personal preference matter for sure.

[Dead Corpse]

10mm... When it must be stopped with authority.

[Jim Noble]

There is nothing but supposition to support the notion that there is any meaningful difference between the "duty calibers" of 9mm, .40 S&W. and the .45ACP when each caliber is deployed with modern jacketed hollowpoint bullets fired against a human target

Hits.

It's about hits under pressure.

IF you can get hits in the right place, repeatably, under stress, with 10mm, .44 mag, or whatever, good.

Most average range shooters I run across have trouble with the "one-shot stop" rounds. I shot my europellet gun (Glock 17) recently in a training setting with some serious keyboard commandos using .45ACP compacts, and, although I am not a great shooter, I averaged 30-40% more hits per scenario. A friend who is very competitive in IDPL competition shoots a 9 for exactly this reason.

Find out what you can hit with, train with it, and stick to it.

4 hits with a .22 beats 4 misses with a .44.