Why would the rotation of the earth matter? It's a constant speed and the person that fires it is rotating with the earth so the rotation is already part of the trajectory of the bullet. So is the wind for that matter.
Wind has a larger effect that is evident even at shorter ranges. Bullets are fast, but during their time of flight they are blown around by the wind just like any other object passing through the air.
Two points on earth with different latitudes move at different speeds. The effect that affects the bullets is known as the coriolis effect (http://en.wikipedia.org/wiki/Coriolis_effect).
