The scope purchased is near perfect for whitetail at the usual ranges. My kids like a scope set to 4x for shooting deer at the expected ranges. I have them practice at lower or no magnification, but the extra mag. helps them place shots better as they gain experience with deer anatomy. I have one of those on one of my favorite deer rifles. It will reach across a clearcut and is peerless in the woods when bucks are chasing.
I think 2700 fps is a little fast. A muzzle brake will tame it obviously, but some kids find the strangest reasons to not like things. They don't see the full picture of situations. I suggest doubling up on plugs and muffs at the range. Plugs on a band are handy when hunting. Another option is just to practice with the 22lr barrel and only shoot the centerfire at deer. That's what I do with my kids.
I wouldn't use a mono bullet for this on a bet. Go soft for deer. It is much easier to teach blood trailing when the ground is painted from an NBT through the lungs.
