mil formula

mil formula

[′mil ‚fȯr·myə·lə]
(ordnance)
Mil relation used in gunnery; expressed by n = W / R, where n is the angular measurement in mils between two points, W is the lateral distance in yards between the points, and R is the mean distance to the points in thousands of yards; the mil relation is approximately true for angles less than 400 mils.