Just want to add here from a historical perspective.

The .22lr was used a lot by downed Bosnian war pilots in two main gun formats, The M6 scout which combined a .22lr with .410 shotgun and semi-auto target pistols with red dots.  Its good to keep in mind their application was very specific, game of opportunity.  Their main task was to get from point A to point B.  That's not necessarily hunting as we know it and not game specific.

Pretty much I think everyone should agree that hunting as a survival tool is supplemental at best. If we can think of it, 1,000 others will.  During the Great Depression the game of the SW US was so hunted out, people started eating Armodillos that they nicknamed "Hoover's Pigs".  

I've done outdoor stuff now for over half a century much of that in Appalachia. Appalachia was and still is a very economically suppressed area.  When I was a boy and before food stamps and the like, hunting was a way of life.  Almost everyone in those days supplemented their diet with game and hunting seasons meant almost nothing. The forests were hunted out to the point almost no game existed.  Even after the advent of first commodities then food stamps, it took decades for the game to return.  It has in a very big way but it did take quite a while.  The swamps of Louisiana have much in common with Appalachia especially historically.  There was a lot of poverty, geographic isolation, augmented diets by wildlife, and even shared a common theme in music.  When I first moved there in the early 70's, there were still people living in boat houses in the swamps so isolated they didn't even speak English.  They had a lot of game dishes I hadn't even thought of in Appalachia utilizing non-traditional game like Robin Gumbo.  Trot lines were a way of life.  Those boat people would run trot lines all the way around their homes and sell the fish to the restaurants along the I10 interstate. It was there I would learn about lizard fishing.  They'd cut a lizard shape out of an old tire, hook it, and put it on a very long cane pole then use their foot to slowly bob it up and down catching fish.  

The point I'm getting at here is when it comes to survival game collection one should think out of the box.  A widespread event, conditions and even what are going to change.

Tj