Thanks for the quick reply! I have employed CCI primers having a Lee auto-pimer for quite a while now but switched powders and saw the recomendation of fed. 200 and was not confident why. Thanks again I decided to mixture the load information mentioned on 6mmBR.com for different cartridges, to https://zionbhmjg.pages10.com/not-known-facts-about-federal-m215-primers-67362473