Ruger 10/22 Breakdown rifle. Best survival rifle out there. It's small, light weight and pretty accurate. Shoots 22LR rimfire ammo. You can carry 500 rounds of that stuff on your person, and will kill small game for food all day long. In a pinch, it'll double as a defense weapon.
Ruger 10/22 - Simple, rugged and reliable, the 10/22 earned high marks on its own. Competitive shooters, however, took advantage of its semi-modular construction and turned it into the premier action sports rimfire with a wealth of aftermarket parts that allow stocks, triggers, barrels, and other key components to be tuned for maximum performance.