I've been using a 105 a-max and 29.5g of Varget loaded to published coal, with a rem br primer. It was the third load I tested the first day I shot it and it shoots in the .4's at 200. It isn't the fastest (never chronoed it) but it works for me. I haven't tried anything else yet. Oh ya, the barrel is a 26" varmint contour LW prefit.