USE OF RETICLE (cont'd)
In determining range, if an object fills one 10 mil unit marking on the horizontal retie
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. The same formula can be used to determine
range with the vertical reticle scale when the height of an object is known. The use of the
vertical scale is preferred (especially on level terrain), since objects are often viewed obliquely
along the horizontal axis.
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