Re: drop of bullet at 1000 yds
The Coriolis effect is that of the earths rotation on a target while the bullet is in flight.
The best way to understand is to realize that the bullet leaves all contact with the earth the moment it leaves the barrel. While suspended in air, the earth is rotating underneath the bullet. When shooting west, the target (in contact with the earths surface) is rising due to the direction of the earths rotation. (Think sunrise and sunset, as the sun is essentially blocked out during sunset) Realize that this has nothing to do with the drop or path of the bullet, but rather the target moving. When shooting West, the target rises, and in order to compensate for this movement, you must Dope for a more exaggerated bullet drop. Most good ballistic programs have an additional data input regarding Coriolis effect. Long range shooting is all about understanding the different effects of atmospheric conditions, as well as how to utilize some very cool software. If shooting at ranges long enough to play with the Coriolis effect, every last thing comes into play.