Interestingly -- well, to me -- is that the speed of the rotation of the earth (at the equator) is 1,525.9 fps. I predict that ammunition with this velocity will be esp. accurate, esp. when fired on an east-facing range. The stars want it that way. (As long as the bullet stays above the transonic region at the target.)
Or maybe you have to calculate the speed at your latitude for the best tune?
Or maybe you have to calculate the speed at your latitude for the best tune?