My 10 year old uses my .223 AR on HOGS. She's not quite quiet enough in the woods yet for deer, but stalking hogs and getting a good broadside view, she has yet to fail. Nosler Partition is a GOOD performer on these hogs. Last year she took a 300 lb sow, this year it was a bit smaller, 180lbs or so. Neither one walked after getting hit.
Note my daughter shoots every week in the NRA Jr. Rifle program. After starting this program this fall, she's already gotten her Pro Marksman, Marksman, Marksman first class, and Sharpshooter ranking. She's now working on her BARS for her designated marksmen certificate. (i.e. She's no slouch with a rifle)