Re: .300 WSM
I just finished loading my son in laws browning 300 wsm. It was last years xmas present to have 50 loaded rounds. Im not a 30 fan but i worked up a load for him and gun shoots 3/4 moa. Im using nosler 150 Bt. with 73 grains of the new H- Superformance traveling at 3160 fps. This powder looks like and throws like a ball powder but slower burning than imr-4350. I tried itin one of my 6mmx284's and got close an extra 100 fps vel.