If you pick up Guns and Ammo magazine, this month Col. Boddington took his daughter hunting for her first time and did a write up on it. He ordered her a Kimber rifle in 7mm-08, but since it would not be here for awhile they opted for a .260. I would go with either one of these, if big game is going to be the quarry. If not, look at varmint calibers like the .223. And take her out to shoot milk jugs full of water, I have showed two girls how to shoot by busting those and they just like to watch the things explode. And be prepared to be outshot after awhile, something about a woman' s attention to detail and patience make' s them natural sniper types .