Quote Originally Posted by Vengeful Scars View Post
.22 revolver.

It fires like a BB gun, but still has enough of a "Oh shit I got shot" to make some gtfo in a heartbeat
This is not good advice. Your HD weapon's effectiveness should not rely on people deciding to run when they get shot. It should rely on wounding power and thus the ability to incapacitate rapidly. Anything else is irresponsible.