I have a Cooper in 260 Remington, so far it appears that H4350 , BR Primers with the 140 VLD Hunting Berger is what I am looking at. I deer hunt over a 300 acre field and can shoot out to 800 yards. Before you ask I have killed deer out to 542 yards but not with this gun. My problem is if I seat the Berger in the rifling the loaded round will not eject without removing the bolt, I see three options, set the barrel back and have the chamber recut for the bullet, modify the ejector or switch bullets. I don't want to set the barrel back and there is not enough meat on the ejector to back it up .030. that leaves another bullet. am I missing an option, what bullet would you recommend, my twist is 1 in 8 and 140 amax require a 1 in 7.5. Thanks for any ideas you have.