.................
Don't overthink it.
It doesn't matter what the kid uses, just make sure he can shoot it well and knows where to put the bullet on a deer.
Yep. I'll recommend again.....let him shoot both, one after the other, as much as possible with each rifle, to see which rifle/round he prefers and which he shoots best. The "better" round doesn't matter if he doesn't shoot it as well....and it's just good practice.
