.22 lr zombie survival | zombie research society, By 1lt chris post. one of the first considerations of many zombie survivalists is what kind of firearm they want by their side. high powered rifles, military grade. Sig 522 lr: .22 lr sig 550 clone - firearm blog, Sig have launched the sig 552. it is a .22 long rifle version of the 5.56mm sig 556, which in turn is a civilian clone of the sig 550. externally it looks. Find - midwayusa - shop shooting supplies | reloading, Norma usa tac-22 ammunition 22 long rifle 40 grain lead round nose sub norma usa tac-22 ammunition 22 long rifle 40 grain lead round nose subsonic box of 500 (10.