22 long rifle
Lets say that some kind of long term disaster happens, such as civil unrest, climate change, new disease breaksout. You and your family head to the remote camp. Unless you have a small farm with chickens, rabbits, hogs, or goats, the main source of meat is either going to be fishing or hunting.
The 22 long rifle is well suited for taking just about any small game in North America, maybe even anywhere in the world.
If the muzzle report is a concern, stock upon 22 shorts or sub-sonic ammo.
If you need a little more power then the 22 long rifle, there is the 22 magnum.
When my dad was growing up, one of the families main sources of food was small game, like squirrels. For hunting the tree rats, my dad used 22 shorts. When I was growing up, my dad used to take me and my brother squirrel hunting every winter. Instead of using a 22 rifle, we used shotguns – my dad used a 12 gauge with #4 shot, and I used my single shot Winchester 410. when I got old enough, my dad bought me a Montgomery Ward Western Field (Mossberg) 12 gauge pump shotgun.
Related forum section: Ruger 10/22 Forum
One of the big differences between the 22 long rifle and a shotgun, is the cost of the ammunition. Where a box of 25 shotgun shells might cost $10 – $15, a brick of 500 round of 22 long rifle cost less then $20.