+1 for the 6.5x284. Case life and factory available brass beat the 6.5x06.
Mine current one does 2950 with 140berger. Well over 3k with 130 in a 23" barrel.
It is a relative lightweight on a Stainless 6-lug USA Weatherby action w/ #2 Shilen in a Medalist stock. I fattened it up to 8 1/4lbs with the 4.5x14-50mm Zeiss.

The .240wby is a favorite as well. Very good choice.