Try the coin trick first...you know...balancing a coin in the middle or somewhere on top of the gun. Have a contest with her. That will involve participation and it will not be boring for her. I used to get bored practicing in my basement, but one day hubby decided we are going to have a "family" contest: balancing a penny on top of the gun. I wasn't familiar with my gun at the time but when I was alone in my den I will practice so I can beat them. Then when we go to the range we will have a contest on who can hit the centre of the bulleyes. So to beat them, I will practice in the basement with either my 22 or the pellet gun (I do not know what it's called but I bought it at Walmart so I can beat them.) Have I beaten them yet? Hell yes! many times...you see men in my family are arrogant and so up in their heads that they thought women are easy to beat at games so when I finally did, they shut up and now they have to put up with me whenever I beat them to their game.
Anyway, I can only ask you to be patient. At least she carries -- for now. And she is not against guns.