I am using Nosler brass fire formed neck sized only but with hornady eld-x bullets in 150 gr. I am getting around 3100 FPS. With n160 powder and it is very accurate in my rifle. I'm shooting this o through a sako finnlight rifle and getting a five shot group around to just under a 1/2". I also had good luck with imr4350 with slightly better velocity but I always had one flier in a five shot group so went back to n160 and will stick with that. Not sure what my coal is off hand would have too look in my notes