the deflection on the trajectory of the bullet generated by the spinning motion of the earth is negligible at medium distances, but becomes important around 1000yds and beyond, especially because it can add to other minimal errors and keep you off target
when an object flies eastward, in the same direction of earth’s rotation, centrifugal force acts opposite of gravity, pushing it away from the earth’s surface
Figure into that vehicle speed, turret rotational speed and direction, and dont forget CANT and ammo type!
Abrams was dead center every time out to 4K if you paid attention to all the details :)