Thanks for the info guys. I have a lot of imr4198 that's what I use in my smokeless muzzleloader. If a guy was going to use a 300gr bullet what would you recommend for how many grains of imr4198 ? I shoot 60grs in my smokeless muzzleloaders with 275gr bullets.
300 Speer or 300 Hornady
48.5grs imr4198
