Ditto what Cayugad said, except I would suggest using an MMP .50/.40 sabot and trying some .40 cal. 200 grain XTP's with a 50 grain charge of 777. The 200 grain bullet will reduce the recoil even further. You can start her out on that and see how she likes it. You could move up to 60 - 70 grains when she gets comfortable with the 50 grains - should be very deadly out to 100 yards if the accuracy is there.