500 Linebaugh trimmed to 1.25,,, my question is about powder-- I have a lot of HS6 any Idea about where to start with it. This not for max loads, it is a 370gr at 900 to 1100, perfect cast boolit range. You can add another 150 -200 fps. No interest in that. But for some who only owns .41 mags--- that is very sporty to me. My old Grey hawk mz loader gave me 1250-1300 with a 370gr in a rifle. I have other powders...but wanted to be able to use this if I can. If not that is ok too