TM 9-1240-408-13&P
0006 00
In determining range, if an object fills one 10-mil unit marking on the
horizontal reticle scale and is known to be 10 meters wide, the object is 1000
meters away. If the same size object fills two unit markings (20 mils), it
would be 500 meters away. When this formula is used, the distance will be
given in the same units of measurement (feet, meters, etc.) as is used in
estimating the known size of the object.
3
K N O W N S IZ E
D IS T A N C E =
1000
N O . O F M IL S
2
1
3
2
1
1
10 M ETERS
M IL S
0006 00-15