Although I can see the advantage of high(er) velocity for some hunting, for example when hunting high in the mountains where longer rangers can occur, I don't see the need for most "normal" hunting conditions. When you're talking about a 416 or bigger, then long range clearly isn't really an issue.

I presume most deer where you live (or rocks as you mentioned.

) aren't shot at extreme ranges. Also, having used for example a 300wby on numerous moose and other animals (needless to say with various premium bullets), I know for a fact that meat damage is excessive compared to more normal velocities.

On the other hand, if it's mainly for shooting rocks and paper, then I suppose none of the above really matters. Just get whatever you find the most fun.