In case anyone is still interested, machined 0.035" more taper (was originally 20 moa rail) into the rail which should put it right about the 40 moa mark. Loaded up 155 Nosler bullets with 44.0 grains of 8280 XBR powder, chrono @ 2964 fps and at 300 yds., i'm 12.25 moa off of the bottom stop...