It'll kill a man, a stray .22 killed my great grandpa squirrel hunting, but that rimfire stuff only works 70% of the time or less. Hell, go to a rifle range and see how much unspent .22 is laying around where folks had to eject it.
By this time, they'd have been hand reloading or at least picking up shell casings with that thought in mind.
I gave up on the guns making sense this season when the eight year old walked in with a suppressor with wires dangling out of the slide.