Re: Most popular powder for 300 RUM w/190 to 210gr bullets
My vote goes for H-1000. For the first 700 or so rounds of my barrel, I got great accuracy and velocity from bullet weights of 150g-220g. Lately, I have been experimenting with Retumbo though, its also proving very accurate and fast as well. Its a toss up, but I shot all my .5 MOA groups at LR with H-1000, so thats my vote.