Share '1 Hitter Quitter .22?'

Umm so on the Zpoc weapon of choice discussion, about halfway through a bunch of people start saying that it takes 1 shot to the head to kill a zed with any gun including .22lr.  Ok so I've been told .22s flip instead of spiral and that's why they bounce around in the skull or even chest.  So my point is we aren't really saying they are dead until their head either has no brain (from a bullet pas…