[IndispensableDestiny]

Mobsters have used .22LR for hits. The bullet enters the skull and just bounces around without exiting.

The only things that bounce around inside one's skull are silly notions.

[yarddog]

I don’t know about mobsters but do remember when Israeli agents murdered the wrong person in Norway. They meant to kill a terrorist but got the wrong person.

I do remember clearly that the weapon was a model 70 Beretta in .22LR.

Of course your typical gang banger is not going to let you sneak up behind him. Still the .22 is better than most think.