Daddy Rat My 15year old son used his 308 Howa on plains game including Hartman zebra and Oryx without any issues. The load I developed for him was the 150grain accubond with 50 grains of cfe223, this load groups into half inch @100 yards with a chronoed velocity of 2,900fps . Start at least 4 grains lower and work up. I advise your daughter gets plenty of practice shooting of sticks it will really pay off. If you want a great outfit to have a family hunt with I can highly recommended Osombahe Nord safaris run and owned by Harold and Liezel, a great family run hunting. My wire, 15year old son and myself had a fantastic time along with the others in our group (2other hunters) Go have fun with your family I garruntee it will be something you will remember for a lifetime.