300 ultra custom loaded ammo
I was shooting federal premium ammo out of my ultra getting sub
Moa groups . Next two boxes groups went to hell 1 1/2 @ 100 . So I took my gun to mg armes to.check everything out on the gun, scope stock , bedding , crown . All where good to. Go. So. They loaded some custom ammo for my gun , it's 180 Barnes triple shock , 93 gr of IMR 7828 rem brass federal 215 primer 3.60 coal , they do 3 shot groups for load development .44 was the group they came up with , great . My one question is they are getting 3440 FPS out of a 26 " barrel , they are great gunsmiths and reloaders . These seam to very hot , I cant find this load data any where does any one shoot a 300 ultra? Also do not use this load resapie .