1 Mil at 100 meters equals 10 centimeters. To determine the range of a target in meters, divide the target's height or width in meters by the number of mils it covers through the reticle and multiply by 1000. For example, a target that is 2 meters tall and covers 2 mils on the reticle would be at a range of 1000 meters. The document provides dimensions for various parts of a reticle in mils at different magnifications to allow for accurate ranging of targets.