I would look into the .357 Magnum also, or the 7.62 X 39. I wouldn't use my .223 in a normal hunting situation for deer, simply because of the very small margin for error. If you do use the .223,try to find some good factory roundsor reload. The Barnes TSX, Nosler Partition, or TBBC would be my choices. Good luck, and keep your daughter shooting!!

Oh, one more thought, I think there are some 125 grain loads for the .30-30, might look into that also.