## Shooting Distance and the Magnitude of the Coriolis Effect

Because Earth is a rotating sphere, the Coriolis effect deflects the flight of a bullet to the right in the Northern Hemisphere & to the left in the South. The effect is tiny in most practical shootings and only needs to be considered in long-range shootings.

Many soldiers are not trained to account for the Coriolis effect, & flat-Earthers use it to “prove” it does not exist. In reality, most soldiers do not shoot long range. It is unnecessary to consider a few mm of deflection if the target is as large as an enemy soldier.

## Coriolis Effect

The Coriolis force is a force that acts on objects that are in motion within a rotating frame of reference. Because the Earth is a rotating sphere, an object traveling unattached to Earth’s surface is affected by the Coriolis force, depending on its speed and direction, as well as its latitude on Earth’s surface.

The rotating motion of the Earth causes the different parts of Earth’s surface to have different linear speeds, depending on its distance from the Earth’s rotational axis. An object moving from a location to another with a different linear speed will be affected by the Coriolis force because the motion of the object is now being observed from another location with a different linear speed/direction relative to Earth’s rotational axis.

## Long-Range Snipers and the Coriolis & Eötvös Effects

When a sniper shoots a long-range target, if he is in the northern hemisphere, the bullet is deflected to the right. Conversely, if he is in the southern hemisphere, the bullet is deflected to the left.

The phenomenon occurs because the Earth is spherical and rotating.