Re: Check me out guys!
I have used MagPro in several calibers. It definately prefers 95% + case capacity loads. In 270, with 140 gr AB, powder charge I am using is about 102% compressed. Fouling is another problem I have run into with MagPro, but I am going to switch to a hotter primer to try and cure that. I can't complain about the MV boost I get with it either.