Thread: Help from those with Quickload please.

MV, not BC (assuming you've got a realistic one for the pill you're using, some are "exaggerated".) Litz has publised some good data on real world BC's.
But its also likely that your scope may not exactly move in moa (or mils if its metric) as the graduations say. So the error in drop vs dialed might be MV but could also be scope calibration. A lot of "moa" scopes dial "IPHY" (inch per hundred yards) or less, rather than "moa" 1.05 in per hundred yards. You can calibrate your scope dial up by placing a box with inch graduations (10 - 12 inches) at exactly 100 yards (from turret to box) with the rifle held in a fixed, stable position then dial up 10 moa and measure where your POA shifts to. If it shifts down 10 inches exactly then its dialing IPHY. If its moving 10.5 inches then its moving MOA. Some maybe be less than IPHY. Either way you can derive a correction or calibration factor. If your intended shooting range is > 500 yrds then calibration probably not a big factor.