If you have a gun, why food? There a plenty of stray cats, squirrels. rabbits, coyotes, beaver, etc near the creek. I'm sure that I can find plenty of plant stuff to eat in the woods.
I think quixotic is how I'd describe this idea of living a Grizzly Adams lifestyle in a post-apocalyptic world.
Well, when one lives in the foothills of the Rockies, the wilderness is not far off. There is plenty of room in this state. And with the federal government hopefully out of the way, that's a lot of land to be able to squat on for only 5.5 million people.