Home Forums Reloading Big Game Rifles What's H4381 do in a 300 Win Mag that I can't get done with H4350?

I started loading the 300 Mag with IMR4350 and 180 gr Hornady IL BTSP. Was getting 3140 fps, and good accuracy. I went to H4831 and RL22. Of the two, RL22 gives better accuracy, and H4831 gives almost as good accuracy, and better velocity (marginally.) I think the H4831 is a little smoother shooter in a big case like the 300 Mag. YMMV.