.22 rimfire has roughly 20-35% of the energy of 9mm, even at the muzzle. I don't even know the terminal ballistics, got to be even worse. Rimfire is also less

.22 rimfire has roughly 20-35% of the energy of 9mm, even at the muzzle. I don't even know the terminal ballistics, got to be even worse. Rimfire is also less reliable, although not nearly as unreliable as some people act like. I wouldn't want to bet my life on it, but I would definitely consider it a viable choice in a scenario where a person is murdering unarmed civilians.