I have a couple good loads for the 7 Rem Mag ( with 160 grn, and 175 grn bullets) but I can't find any RL 25 or hardly any Alliant powder so I don't burn up the RL 22 or RL 25 needlessly in case I run out. I might still be able find some Retumbo none of the stores up here have had Alliant powder for a while. If I can find some at the gun shows I'll snag what I can. Maybe 4831 might be a good alternative. I have stocked up on IMR 4895 because I have some good loads for other calibers and it seems to work in a pinch for just about anything. Have any of you guys used 4895 in larger cartridges like the 7 mag and how did it work for you?