I don't run a hard core long line or anything, but I do run a ways on snow machine, trapping fox, coyotes, marten, etc. In my area there's three things you need a gun on the trap line for. Dispatch sometimes for toe caught animals, something to stop a pizzed off moose, and something in case you see a wolf or a coyote on the snow machine. I've settled on a single six 22lr on my waist and a 22mag marlin 982 in a gun boot on the snow machine.
I think a 223 would be even better, but I don't really like carrying my AR in the winter that well, and I haven't got a bolt gun yet.
