<Dd> B C P r o j e c t i l e = m d 2 ⋅ i (\ displaystyle BC_ (Projectile) = (\ frac (m) (d ^ (2) \ cdot i))) </Dd> <Ul> <Li> BC = ballistic coefficient as used in point mass trajectory from the Siacci method (less than 20 degrees). </Li> <Li> m = mass of bullet </Li> <Li> d = measured cross section (diameter) of projectile </Li> <Li> i = Coefficient of form </Li> </Ul> <Li> BC = ballistic coefficient as used in point mass trajectory from the Siacci method (less than 20 degrees). </Li> <Li> m = mass of bullet </Li>

What is the ballistic coefficient of a bullet