Sorry - my comment was about the muzzle break.
I will admit that I don't have any interest in the .460 for 2 reasons:
I want controlled round feed, or a rimmed cartridge in a double rifle; and
I can't see the advantage of putting so much stress on even a monolithic solid that might give it any more reason to deform on contact with elephant bones than is already inherently possible.
Other than at ranges beyond 200 yards, I really can't see the point of exceeding 2400fps. I NEVER intend to shoot at an animal that would require a 500 grain bullet at anything like that kind of range.

Having said all that, show me a CRF .460 Weatherby with a suitable barrel twist for 600 grain monolithics at 2150fps and you'll get my attention! Briefly.

At the end of the day, i agree with Peter - enjoy what you shoot, but for God's sake shoot it well