One big drawback a auto has in very cold weather, like you can incounter in Wyoming in the winter time, is the reliability goes down hill unless you strip all oil or grease from moving parts.
I have seen a 1911 fired in very cold conditions in Wyoming on a elk hunt. What I saw was first shot off, and the slide coming back in very slow motion, due to frozen oil on the rails, and failure to pick up the second shell from the magazine due to very slow motion going forward.
If you must use a auto in extreme cold weather, remove every last drop of oil or grease from ALL moving parts and use a dry lubicant such as graphite.
RELH