If I had to choose one survival firearm it would, without a doubt, be a 22. Moose and Caribou are big game, and I would not choose to tackle one with a 22 but I have seen some big hogs fall to it, and in a survival situation would not hesitate. In the south where I am from the 22 is the poachers and jack lighters weapon of choice, and they kill alot of deer with it. Also this guy wasn't out hunting on the weekend he lived there and was hunting and foraging everyday. chris