Originally Posted by mdemichael2
It's not the caliber but the ammo selection and how accurately you shoot. Even a 32 acp is deadly in the hands of someone who shoots accurrately and has the right ammo.
A .22 will kill a cow, but it's not what I would take hunting.
Colder weather = thicker clothes
Bigger caliber is needed in winter.
I suggest a S&W M&P .40 or .45 for winter carry.
If I expected trouble I'd rather have one of my rifles, but since a rifle is not easy to conceal I'll carry my M&P .40c in winter.