I prefer the mid grip for shooting from the creedmoor, but I still shoot contenders and encores. That 284 is a right handful with the brake removed, part of the reason I'm looking at the 6BR. Just picked up a 250 Savage XP that someone customized. I put 50 rounds through it to get my drops for a IHMSA match this weekend and there isn't a trace of copper in the barrel.
What is the twist du jour for heavies in the 6BR? I'd probably use PacNor for the convenience, so groove count would also come into play. Any advice would be appreciated on details. I'm not afraid to turn necks, but I'd much rather be shooting.