ORIGINAL: haugenna
I think I found the sweet spot with this gun. Weatherby 30-378 pushing a 180 accubond chronographed at 3350 fps with 108.5 grains of Retumbo.
Dang! I thought my .338 Edge burned a lot of powder. I am running 225 NAB's at 3200 fps with 102 grains of RL-25. I haven't shot much at 300 yards, yet, but I hope I get some groups like your. Nice!