Originally Posted by JonM
which ever one you shoot best and will carry. a gun that you have and can hit with trumps caliber choice.
^^^^There ya go. Pick the biggest baddest thunderboomer that you will
carry EVERY DAY. No excuses----none of the "it's too heavy" "i can't
conceal it in these clothes"----EVERY DAY. If that turns out to be
a NAA mini revolver, a Desert Eagle or somewhere in between, pick your
gun then practice, practice, practice.
To answer your original question, 40 and 45 are both good. It's a personal
thing, and personally I prefer 45.