Ballistic Coefficient vs. Accuracy?

[Distant Thunder]

It is a common mistake to try and apply high power principles to BPTR and it totally ignores the fact that like it or not, accept it or not, we are in the transonic zone for around 80% of the bullets flight. The rare exception is the guy with 100 grains of powder in his cases and even then, his bullets are in the transonic zone by 200 yards, not subsonic, but transonic. I don't think everybody understands the difference.

Subsonic is below the speed of sound which is roughly 1130 fps depend on several conditions. Transonic is the zone where the sonic wave produced by the bullet has an effect on the bullet, 1346 fps to 897 fps. In that velocity range the bullet is being influenced by the sound wave that is initially produced in front of the bullet then as the bullet slows down the sonic wave moves first onto the nose of the bullet and then moves toward the base as the bullet slows even more to the 897 fps mark when the influence stops.

This sonic wave cause all sorts of stability and control issues and is why aircraft don't fly in that speed zone. Bad things happen!