try the berger 140 grain VLD they have a bc of 612 for longer range shooting will even work better. Under 1/2" at 100 yards and getting six inch groups at 600 yds. The slower burning powder the better in the .264. I have used the WW2 machine gun powder it has extremely slow burn rate or retumbo...
the 140s will shoot even flatter at longer ranges. Yes they do rock. They have been around for a long time but not many people know how they shoot. I like it that way
My cousin and I bought a pair of 264 win mag. we have had great success with our guns. Flattest shooting, accurate, very accurate at long range 400 to 600 yds on a deer is a snap. The recoil is not much and its a hard hitting killing machine with the right bullets. wish I would have bought one...