Neither either of them amount to a hoot, and there's no such thing, in the lower 48 states, anyway, as a survival situation that DOESN'T involve combat, yet where a gun is any help. Especially a shotgun. For the 10 lbs of gun and ammo, you'd be be WAY ahead to carry a couple of snares, a couple of small trotlines, a gill net, a silenced .22 autpistol, and 4 lbs of high calorie food. It's almost impossible to find a place in the US where you can't cut a rooad, and/or at night, climb a tree or a hill, and see lights. If you can see lights, you can walk to them in 3-4 days, guaranteed. You dont need ANY food for 3-4 days of hard hiking, and 4 lbs of the right food will give you ANOTHER 4 days hiking. In 8 days, with shares, trotlines, gill nets, a .22 pistol, and some knowledge of edible plants, if you cant find something to eat, you are REALLY lame. Big, heavy ,NOISY guns are never the answer for foraging, and they are always inferior to a silenced gun for EFFICIENT combat, too. 3 lbs of shotshells aint crap, and the 12 ga pump weighs at LEAST 3 lbs. That's 10 each buckshot, birdshot, and slugs. You aint going far on that, unless you get LUCKY and pop a couple of deer, or poach somebody's cow. If you went with 25 rds of #2 birdshot and 5 slugs, you'd be ahead, but you'd still be sucking hind tit to the gear I outlined above, along with the food.