I'm far from an expert at reloading and am currently resizing my brass for certain reasons disclosed earlier. I'm shooting the DPMS Oracle. LC brass CCI 200 primers, mag length. 150 BTSP over 46 Varget and 175 SMK over 44.5 Varget. Both loads shoot MOA or less out to 400 when I do my part. I really need to do some 10 or 20 round groups to show what I can with it. I don't shoot from lead sleds, strictly bipod and supported rear for groups. YMMV