With 90 grain bullets in a 6mm Rem, start off testing with H4350 and if you can't get it to shoot as good as you like, then switch to H4831sc. I use H4350 in one 6mm with 90 grain projectiles and H4831sc with 90 grain projectiles in another...approximately the same velocity at similar pressure with either powder. The H4831sc load is a few grains more, of course. Go to the Hodgdon site.