100 yards is long, but not impossible. My Ruger 10/22 loves the Aguila Super max bullets. Faster then most, but also lighter. The only thing I have found with them is they smell different and are louder then most. Loud may be an issue for your daughter. I use them on small animals including Racooons out 85 yards. With the speed and flat trajectory, I have not had to adjust the scope.

If you really want your daughter to have fun (and yourself), tracers on .22lr ammo are always a hit.