Questions:
-Do most manufacurers just advertise the bc for the higher velocity?
-Should use the average bc within the velocity range from muzzle to target when calculating or comparing drop/drift?
To actually address the questions asked...
Manufacturers advertise the highest BC number.
But some manufacturer provide 2 different
types of BC numbers for a given bullet.
One is called g1 and the other is called g7... they are equivalent but different BC scales. A higher value is the sleeker bullet using either scale.
So for the most accurate results, when using the
g1 scale, select g1 in your ballistics program, and plug in the multiple BC/velocity numbers into the program.
When using
g7 numbers, after selecting g7 in the program, you can just use the single g7 BC number.
That way the calculated results should be similar.
