.22 Mag is grossly misrepresented, in my opinion. I have seen what it is capable of, and I never want to be on the wrong end of one. Sure, my regular carry .357 is way superior, but in a summer "shirt sleeve" serious meeting, among sheep (not sheep dogs - descriptive, not disparaging), that extra concealment of a small, flat NAA Black Widow is comforting. My wife is not able to safely rack a P3-AT, and I really don't like them at all (doesn't fit my hand); to each his/her own. Just so you practice with whatever you carry.
sailortoo