I believe we need to look at BC as the ability not only to resist wind, but changes including velocity and direction of the wind as well.
This is the key that many fail to consider- a wind drift advantage is not just a sheer magnitude advantage given a standardized and constant 10 mph full-value wind condition. The major benefit to a lower drift bullet, is the insensitivity and inelasticity of that bullet in changing wind conditions, and the tolerance of that bullet to shoot through incorrect wind calls without being affected as much as a bullet with a lower BC.
I've noticed this too shooting the 150 BT vs the 162 Amax from the 7 Rem Mag at the home range at 600 yards.
Due to trees the wind tends to funnel and blow opposite directions at the same time. When conditions are good, 600 yard groups with both are about the same,but when it really kicks up, the Amax takes over and is more consistent.
