Bart B.
At most a 308 over a 1000 yard flight can only turn 13 minutes off axis, based on the 13 minute uncorrected calculation I ran. If you angle the bullet into the wind, a 175 SMK at 2,600 fps then the correction becomes 10.7 minutes, IIRC.
If Bryan Litze is correct, angling into the center of pressure preserves BC because the bullet is always at its most aerodynamic with reference to the wind stream.
For example a 10 mph crosswind is only 14.5 fps, and when the bullet is traveling 2,600 fps at the muzzle, and over 1,300 fps at 1000, you have a 100 to 1 ratio even when the bullet is traveling the slowest, so the bullet won't angle into the wind enough to see on paper, as 13 minutes is just over 1/8th of a degree, which is probably not enough for any human eye to detect.
If Sierra is correct then the bullet shot angled into the wind eventually "noses over" in the horizontal axis and is pushed back towards the target nose first following the wind. However this would not keep the nose in the center of pressure and would indicate that the nose of the bullet is seeking a path of least resistance.
The difference between the two models, at 1000 yards, is only a bullet orientation of 21.4 minutes (10.7 minutes left and right) of the gun target line. So it isn't a huge difference, although it could be measured with lasers reflecting off the base of the bullet and sensors spread out back at the target line....
Anyone up for writing a physics research grant request?
Jimro