I am running 60.2grs of H4831 or H4831SC and Sierra 160gr GK right at about 2850 from a 23" bbl. Still haven't run across the 150gr GK to try out. I do have some IMR7828 that I have not tried yet, Vit N165 also looks like a powder to try.
Last edited by clos; 08/25/14.
