Wife and I got out this past Saturday and since it was calm it'd be a good day to shoot out to 300yds. Been mostly shooting/loading 40.6grs H4350 in Hornady brass under some of Tom Jacobs 103Vapor Trails, but just for shits and grins thought I'd drop the charge down to 39.9grs to see if there was any difference, there was but not much, it was raining a bit and the wind kicked up a bit for the left group but it was coming out of the north and we shoot to the north, shame I had to be adjusting my head for the group on the right and threw that 1 shot. The 40.6grs load is good for 3066, the 39.9gr load should be right around 3024fps.Maybe my luck will change for next years 600BR season.