Kind of makes you wonder how we got along without all of these fancy calibers, brought out only to seperate you from your money. Why not go out and buy a .50 BMG? That has to be the ultimate at this point.
The fastest, the biggest, and the most powerful. When it comes down to it, a Luxury in the extreme for a few hundred more FPS. IMO. But hey, it's your money. Knock yourself out.
All in all, a rifle doesn't make the Hunter or the Hunt. I know plenty of people who would be as much or more productive with a single shot in a smaller caliber.