I have a H S Precision SPL chamber in 280 AI with a Leupold VX6 3-18x44 scope I have worked up a very accurate load 150gr H ELD-X, 59.0gr IMR 4831, Fed. 210M, and Nosler Brass. Velocity has been verified with an Oehler at 3096fps and a LabRadar at 3114fps It's zeroed at 200 yards, dial up 300 yards right on, 400 yards .5MOA high, 500 yards .75MOA high, and 645 yards 1.55MOA high. Dial up was calculated by G7 rangefinder and verified with BulletFlight app., where am I going wrong with my dial up? When I use G7 trajectory verification software it's showing that my muzzle velocity is approx. 200fps faster than my range finder/app.