22lr is survival round, plus it's used in rifles such as AR-22 models. Anything with a magzine over 10 rounds is off all the guns shops I go to, this includes 25 round magazine for ar-22.
SHTF vs TEOTWAWKI you ask? SHTF, just some crap on the ceiling and walls, TEOTWAWKI end of the world as we know it. Orignally made by 9mm/®™©