No doubt, and the factory BC given by Berger is plenty good enough for 500, even 600 yards, but once you get out there, not so much, it needs tweaking.0.1 mil at 500 between the ballistic calculator and my shot group. I'm probably the biggest variable.
Depends on how far out you go.IMHO, the delta in conditions probably plays a larger roll, both atmospheric exterior, and the effects of temp on MV than having the errors in your BC.