I am some what new to reloading and have a couple of questions. As far as powders go i would like made 3 or 4 different ones to use. I have varget and H4350 for 270 and down cals. I have used 4831 on bigger stuff 30 cal looking for a powder to use in 300 ultra mag and 338. Also need something for 450 marlin. Any suggestions for what i am loading would be great thanks.