I am thinkin about picking up a ruger 10/22. They are a great rifle with cheap hi cap mag options, which is a big reason I want one. Since I wont be able to hunt with it (livin in PA), then I figure it needs to be as defensive as possible. Something for my wife to be able to rap off 25 shots at once if needed. So it basically comes down to ammo. Ive heard about some really fast newish 22lr loads out there, but I dont think I should go with a hollow point. Id think penetration would be most important in an SD scenario with a 22lr. I will have 25rds at the ready, since with something this small you are going to need to make multiple hits, most times. I just wanted to see what you guys thought about this and what kinds of ammo you would use. BTW, this is not going to be my go to SD gun, we each have a 9mm for that. This rifle will just be a plinker, but I want it ready for action in that rare case it would be needed.