Which rifle would be a better survival gun?

I have an Enfield 1917 as well, that I use for elk hunting. However, if I wouldn't carry it unless I intend to shoot an elk. It's too heavy for a survival gun, and the rounds are too big and powerful for what I would likely use a survival rifle for. I would lean towards the lever gun- you can buy lightweight, cheap, and low recoiling .38 rounds for light game, and .357 for heavy game. It will be plenty powerful enough for what you describe, and the rounds are smaller and lighter than the rifle calibers. Also, in the future, you could carry your revolver, and only need one type of ammunition.