My opinon, but I think the .45 ACP in some of the modern ammo configurations like the Federal HST, the Winchester T, the Cor-Bon DPX, etc will prove a MORE effective man stopper than the .40 S&W aka .40 short & weak. It is, in essence, a 10mm short. It has proven itself time and time again, so don't get me wrong there. I would carry it as a SD weapon, than either the 9mm or the .380 (9mm short). Given I had to pick up 1 of 3 pistols for battle. I carried a Glock in .40 cal when I was a Deputy in Nebraska a few years ago. However, before the department went to .40 S&W, AND they bought our guns and mandated we carry all the same ammo, my own personal duty gun was a Ruger .45 ACP double action. I carried Black Talons then so it would not over penetrate.
I have a .380 Bersa Thunder and tues, the 15th it will be one week old for use. I've had it all apart and polished the safety/decocker, and the magazine eject button so they work a lot better. I worked on the safety decocker lever last night and now it moves out of safe a lot better but still has positive, lock/control. Just made it a lot smoother for my thumb to move the lever off safe.
I am SERIOUSLY looking at the 9mm high capacity (17 round) and would have liked to see a .45, but that's another thread. *S*
Vern
http://vernsdidj.com Didgeridoo info and pictures
NRA member
Bersa Duo-Tone Thunder 380
Bersa MiniFireStorm .45ACP in Nickel
"There are 10 kinds of people in the world. those that understand binary and those that do not."