Depending on where her recoil tolerance lies. One can do truly reduced loads or just less than maximum.
We have successfully used reduced/less than full power loads with 95, 100, 110, 130, and 140gr bullets out of the 270. T/TSX, AB's, and Hornady. They all worked.
I just gradually increased the loads every year as my boys grew. It was a win/ in situation, successful youth hunters and they got to pull the trigger on a lot of pleasant recoiling ammo. They are very familiar with their go to hunting rifles, and have sent many rounds downrange in practice.
