The're all good and you'd be fine with any of them. I've had a Swift, kind of a screwy rimmed cartridge but it was ok, got sold about 15yrs ago. The 22-250 is a good cartridge too. If you're gonna use that case, might as well go with an AI.......mine get about 300fps more velocity than the std case. People have strange ideas about things. I don't know how someone could think it costs more to chamber because it doesn't. And the stuff about having one because it's different or looks cool is just silly......a bunch of us shoot the 22-250AI and I don't remember anyone ever commenting on what it looks like. That's not even a factor.