JDP,
When you say, survive from today and on, I assume you do mean in a wilderness environment? In that situation, I would be thinking of feasting off big game, so a large weapon wouldn’t be a priority for me. I’d concentrate on something light, that I could carry in my backpack.
My Thompson Contender with my 22mag, 357mag, and 375jdj barrels, would be enough against any large game. Hopefully that wouldn’t be to often. My 375jdj will drop a grizzly, if I needed a coat. LOL
For daily meals, I’d concentrate on small game. Anything I could get to, within 50 feet. Then I’d save on ammo, by using my blowgun. Don’t laugh, unless you’ve used one.
Perfect for shoot small birds, eating off the land. The kill is quiet, so the other birds eating wont be scared off. Four, six would be enough to carry me through the day.
Rifles are too heavy, but my Contender is light, single shot, and with a 375jdj, accurate within 400 yards. One shot, one kill.
Oh yes, a good survival knife and a compass is a must.
Rocky