I would absolutely recommend the 605 for her to carry. I love both of mine (SS and blue) and they are manageable and concealable. I'd also offer a suggestion. If she's comfortable and competent with the .38, I'd go with a 38+P and give her some extra horsepower without it becoming uncomfortable or uncontrollable like 357 might cause. I've seen that recommended by a number of experienced shooters (I think Mas Ayoob was one of the proponents) of keeping things under control and not using 357. Good luck!