I don't know about the CCW laws where you are but here a .22 isn't an option. I don't think you can beat a Lady Smith in 38 Special. Beautiful little guns that should fit the feminine hand perfectly. Let her shoot wadcutters. They won't have much recoil. This may not be the greatest personal defense ammon on the market but it will dang sure discourage 95% of all the bad guys out there. If you read the accounts of people who had to pull their guns, most of the bad guys run at the sight of an armed citizen. For those who don't flee, even a lowly wad cutter will sure cause you to change your mind in a hurry.

Then when she thinks nothing of shooting those, you can work up to other things. Mostly STAY with your idea of a revolver for her. Do not get her an automatic.