Just wondering, I worked up a load for my .300 Wby, and the velocity was on the high side of things, but i didnt question the chronograph, zero'd the rifle at 100yds, dialed up and moved out to 500, shot a very good group 1.5 MOA low! So now I am wondering if maybe my muzzle brake is messing with my data some way? I will lay it all out for you guys and see what you think. Custom .300 Wby, 28" Krieger brl. 180gr Nosler BT 88.5gr RL25 OAL 3.751 WLR-M primer 4 shot average 3461 fps scope ht 2.90" BC .507 zero- 100yds altitude- 1000ft 500 yd come-up=4.96 MOA?