My wife is the same way, she has no interest in shooting auto pistols, rifles, or shotguns, but is a damn good shot with her Smith .38 revolver and loves to go shooting when we can find a baby sitter.
After the reading I've done on concealed carry (Massad Ayoob) and the legal issues that arise if you have to ace a dirtbag, I only carry with factory hollow points. One or two 50 round boxes of carry ammo should last a while, only need to fire a cylinder of rounds out of the carry gun before leaving the range to stay acquainted.
I also agree with the comments about your wife needing a heavier pistol for a range gun. The 4" 6-shot Taurus .38 revolvers are 8-12oz heavier than the 5-shot 2" models and should handle a puff/target load much more comfortably.