Does that mean you're calculating your BC's using 150yard data and extrapolating beyond to build your drag curves and get your G7 and drop values? Or are you taking drop data and backing it into your computer to give you a BC?
Pretty much that is it.
Taking velocities at face value from the LR I've found that the BC's advertised do not always jive with the ballistic calculator. This assumes correct inputs for atmospheric conditions as best as possible (the Vortex calculator is good for that when you know your position).
Testing reveals that some bullets do not actually fall to the POA as predicted in the calculator (tall test verifies scope correction factor).
Ultimately I take the data garnered in the field and 'back' it into the program.
Many times using Litz's BC's things work out as come ups are as predicted.
I think what is skewing my results on occasion, are a combination of, velocity too slow, rate of twist not optimized and some rifles damaging the bullet a bit as it enters the rifling.
With the Labradar an up date to version 1.1.3 solved the 22 caliber issue.
