I seriously doubt it was 600 yards, but if it was, then I've gotta go with BC and RR (who's taken shots at twice as far

) on this and say that there is no way that a new shooter with precisely zero trigger time should have attempted that shot. Heck, I'm a former Marine Expert Rifleman, I've shot with iron sights at 500 meters (that's 550 yards), but there's no way I'd tray this shot with my 257 Wby with its mil-dot scope, and it shoots flatter than the 7mm Rem Mag. It turned out ok, but let's face it, the kid got really lucky. Even a 25 yard range estimation error is roughly 7" of difference in drop. 600 yards is way too far to be guessing holdover and windage (with zero experience with doing either) when shooting at a live animal.
It's a great buck, and a very LUCKY shot, but it easily could have been a very poor shot. I'm happy for the kid, because it's not really his fault for doing what his dad and uncle told him to. It's the adults in the situation I take issue with. They should have known better.
Mike