I like the way you think. Most of the new hunters I take out are teenage girls. I have 4 daughters. Slight frame. Before we go hunting I take them out and tie balloons about 6" diameter to sage brush and we pop them from 50 to 150 yards. They have a ball & I get to watch them and help correct any problems. Some don't even notice the recoil. The ones that do we try a shoulder pad and that seems to work.
The Ammo is something I have had to play with. The 243 likes Remington 100gr corlock "sp". Sub moa at 100 yrds. Some of the others can be over 1 1/2'
Same here with the girls, females are great shooters! I use gallon jugs with water and they get in to watching the explosive water sprays!