Why would this be any different than your carry gun, which is presumably the gun that you'd be practicing with most often? At most it should be a larger version of whatever you CCW, e.g. a Glock 17 vs a Glock 19.KHickam wrote:But, in this case I was speaking about a gun that you carry on your LBE in case it all falls apart.
Anyways if you're going to put a vest and play Mad Max you should really be carrying around a rifle anyways and a pistol wouldn't matter much.