If you reload, get some WC, or SWC and load them up with 3 to 3.5 grains of Bullseye and let her shoot them for awhile.
When she gets proficient with that, step up to the +P's and see how it goes.

If the gun hurts her, it's all over, she won't want to shoot that gun anymore.

ON EDIT: if you get hollow base WC, go with 2.5 grains of Bullseye.

__________________
John