30 will kill from 20yds or closer on a broadside shot only i wouldnt want that on a quartering deer i just dont think u'd get the penetration needed. I would want atleast 40 to hunt with. I would recomend a premium 2 blade cut on contact broadhead. The magnus stinger would be the best head u could get for that setup comes razor sharp and is a true preformer! best of luck to your daughter in her hunting adventures!