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.
The Mil-Dot One-Step returns the elevation and windage adjustment in MOA, rounded off to the fineness of the scope's adjustment dials.
The first screen shot shows the Mil-dot One-Step being set up for a .260 Remington with a 300-yard zero and a scope with quarter MOA clicks.
The second screen shot shows the sniper inputting 76 inches, four mils angle and 10 mph wind. This data corresponds to a BTR-80, which is 76” from the ground to the top of the hull. The Mil-Dot One-Step reports that holdover is 6.75 MOA and windage is 3.25 MOA.
The third screen shot shows the sniper inputting 116 inches, five mils angle and 15 mph wind. This data corresponds to a BM-30 truck (used by the Russians to transport the Smerch multiple rocket launcher or the SCUD missile), which is 116” from the ground to the top of the driver’s compartment. The Mil-Dot One-Step reports that holdover is 10.75 MOA and windage is 6.00 MOA.
The fourth screen shot shows the Mil-dot One-Step being set up for a .338 Lapua with a 1000-yard zero and a scope with half MOA clicks.
The fifth screen shot shows the sniper inputting 116 inches, 1.5 mils angle and 5 mph wind. This data corresponds to BM-30 truck (used by the Russians to transport the Smerch multiple rocket launcher or the SCUD missile), which is 116” from the ground to the top of the driver’s compartment. The Mil-Dot One-Step reports that holdover is 80 MOA and windage is 7 MOA.