ORIGINAL: MDBUCKHUNTER
The odds of a nine year old shooting at a deer and injuring it are high. Don't make a bad name out of this sport. Wait until she is old enough to legally hunt.
My 8 year old son can shoot 4" groups at 100yds with a .50 cal muzzle loader. He has to prop up against a tree or on something but it can be done with little practice.
EDIT- My bad...I thought he was talkin about letting her pull the trigger on a gun for some reason.