OK, Another OMG, if only.......Parameters given state "rifle", so according to the rules the shotgun is out. He said "wild" so self defense and urban dangers are out. There is nothing really threatening in the lower 48, a few scattered bears, maybe a wolf or lion, but even running into them would be extremely rare. So that leaves only food production as the primary use. If you are in "the wild" you are not going to have your reloading stuff with you, nor a LGS to restock at. It would be beneficial to be able to kill something larger than a squirrel, but very large animals would be useless as there is not the time or mechanisms to preserve them. You would need to be able to cook and carry the results with you. I would say that the gun I just gave my grandson is it. Lightweight profile SS, synthetic stock 22 Mag rimfire. It can kill an elk within 50 yards if need be, but could be used on a squrriel. It is accurate, more energy than a 45 acp , the most power in the smallest, lightest package, you could carry 200 or more rounds with the same weight/ space as 1 box of 45's. The size and weight would also rule out most shotguns and large centerfires. The variety of load/ bullets available is good, split them between HP, FMJ, and JSP. And, the cost is not so great that you could not stockpile them in the first place. It is almost a shame that H&R never got hold of a Savage 24 patent. The 22 mag over 20 ga has to be one of the all time classics. But.... there it is.