I cheaked hodgens web site a nosler book and a Speer book . Starting load is between 61 and 63 grains . Max load is between 65 and 67. I went up to 65.5 wo any problems . Best group is about 3/4 of a inch counting the one flyer that every group had. Other two bullets were touching . Going to have to tune my boss to that load. Was shooting at 100 yards going to try between 450 and 600 Tomarow . Dout I'll have to shoot past 450 because the guy im shooting with is bringing a 308.