I have been shooting skeet for about (3) years and started out with a semi-automatic 12 ga., this may be too much for the lady. She probably would feel more comfortable with either a 20 ga. or 28 ga..
I ended up with a Browning Citori 12 ga. o/u, model 425 and have had it most of the (3) years. The semi-auto models have less recoil but are harder to clean but are less than 1/2 the price of a model 425 o/u models.
The 20 ga. or the 28 ga. has about the same pattern as a 12 ga. but has less density of shot.
TRACKER JOE