My survival rifle is a Kel-Tec SU-16B. It folds up, is extremely reliable and I hit what I shoot at with it. The ammo is a lot heavier and bulkier than .22LR, but I also have a wider variety of game that I could theoretically take with it. In .22LR, my choice is a Ruger 10/22 with a youth stock and fiber optic sights.