"Vincent 'Vinnie' Antonelli: Richie loved to use 22s because the bullets are small and they don't come out the other end like a 45, see, a 45 will blow a barn door out the back of your head and there's a lot of dry cleaning involved, but a 22 will just rattle around like Pac-Man until you're dead. "
In the mid part of the last century I owned a .22 Rimfire Magnum. That little round packs a real punch.
LOL