Originally Posted by tjonh2001
Nate at SSG is building me a new 300 rum. planning on shooting 210 bergers. i am looking for some loads. should i use retumbo or h-1000? the gun will be a 26inch ABS carbon fiber barrel in a 1-11 twist.
thanks in advance for any Help
You need to use what the rifle likes!
Don't get caught in using what you want.
I would try a few different powders, and use what will enable you to reach your targeted velocity with acceptable accuracy.
I have used RL25, Retumbo, H-1000, 7828, and a few others with excellent results in 26" barreled rifles.