The Mil-Dot reticle was designed around the unit of measurement called the miliradian. The dots of a mil-dot reticle allow the shooter to estimate range to a target of a known size, hold over targets with the mil-dots as a reference, and give a recognizable lead for moving targets. The US Army equates each mil to 3.375 MOA while the US Marines equate it to 3.438 MOA. The practical application has become one mil= 3.5 MOA. The Mil-Dot reticle is employed by placing the reticle over the target and aligning one end of the target to the flat of the reticle. The number of Mil-Dots are counted to provide an accurate reading.