Most of the guys jumping on here now haven't read the complete thread. She has access to a 22" AR in 6.5 Grendel. Also a 20" bolt gun in the same. Get her a 500 round case of Wolf steel ammo and let her shoot. It is super cheap and in my two Grendel shoots plenty good for plinking and practice. Switch over to hunting ammo when the time gets near and let her enjoy.