It will shoot the 75 grain Hornady Black 5 shots into a nickel at 100
Whats wrong with that?
At the velocity it produces, at fairly short range I'd imagine, I'd say you could use a bunch of different ones. If you know the 75gr Hornady shoots that well, I'd be focusing on buying more of those, or loading them yourself by the bagful. Have the boy shoot a bunch, the deer will be in the pictures.
My boys started at 4, hunting at 6. If he's into it and focused, he'll be fine.
