I use 25 grs. Varget under a 65 gr. Sierra GameKing, but you might also like the bonded 64 gr. Nosler. I was testing some loads through another rifle and had five rounds left using the 64 gr. bullet over 25 grs. Varget. These I fired in a Colt 6920 carbine. Velocity was 2757 ft/sec. for the 16 inch barrel with a 1.2 inch group at 100 yards. That was with an Aimpoint. Anyway, the results will motivate further testing of this load.