Some say a .22 magnum is not powerful enough to defend thy self. I disagree.......
I remember once camping in Wyoming with a boyfriend and while hiking we ran headlong into a brown bear along the trail, and boy was she mad. Seems we were unknowingly close to one of her cubs, and she started to charge us.
I pulled out my little Beretta and fired one round into my boyfriend's kneecap and briskly walked off in the opposite direction. So who said you can't defend yourself with a .22. I do love my little Beretta.