Mil-Dot One-Step

A sniper inputs his rifle's caliber, whether it is sighted in at 100, 300 or 1000 yards and whether the clicks on his scope are one eighth, one quarter or one half MOA. Then, in the field, the sniper measures how many mils an object of known height subtends. He or she enters the object's height in inches, the angle it subtends in mils and the cross wind in mph.