I voted 9mm because that's the caliber that my pocket gun (Kahr P9) is chambered in and that's what I'm most likely to be carrying
on me. I usually have a .40 S&W full-size service pistol (Glock 22) in the truck and on the rare occasion that I actually strap on a OWB holster to go out in public, I carry the G22 then as well. But I may start carrying my new Kimber 1911 in .45 ACP once it's fully broken in.
Not to mention the occasional .380 ACP or .38 Special as a BUG.
So many great calibers...it's a shame to settle on just one.

istols
