My press for my own reloads has not arrived I just bought some factory loads. I am using a Labradar and the box of Peterson loads stated 350gr Sierra Matchking with a G1 0.805 at 3280 FPS. I was getting 3158 Ave with my rifle. When I enter the info into my keastral and my other ballistic app my point of impact is lower. to get it on I had to lower the bc to 0.690 and that seem to make it on at 600 and 830 yards. Is that the better way to correct rather than lowering the fps? I would assume the Labradar is accurritt.