RE: I know what mine would be?/Do you?
A good Bolt action in a rimfire caliber. Light, handy and you can carry ALOT of ammo. This gun would be to survive with. That means hitting game as tagets of oppurtunity. That means having your gun with you ALL THE TIME. And you are more likely to see squirrels, rabbits, possum, waterfowl etc, than ELK and black bear. A .22 will bring down a deer, or kill a turkey and ducks.
For a .22 LR rig-CZ ZKM-452 lux bolt with a Weaver 2-7x32 rimfire scope
For a .22 mag rig. MArlin 882 bolt with leupold scope w/ adjustable objective.
Winchester ammo (about 500 rounds for either.)