Thanks for the fast reply! I've made use of CCI primers with a Lee auto-pimer for a while now but switched powders and saw the recomendation of fed. 200 and wasn't sure why. Many thanks yet again I think they have a minor influence, but that’s hunch not science! A https://cristiannkxiy.blog-mall.com/32412702/everything-about-federal-primers-large-rifle-magnum