If the center of the crosshair is against one edge of the target and the opposite edge of the
target is positioned behind the center of the second dot, the target measures 2 mils. If it is
exactly between the second and third dot, it measures 2.5 mils, etc. The more specific you
are in your estimation of the size of the target in mils (2.75 mils, etc.), the more accurate
your results will be. This is especially important in estimating the range of a small target or
in estimating the range of a target at a great distance (i.e. beyond 500 yards).
Once the measurement of the target has been determined in mils, the range can be
estimated. This can be done in two ways—either by consulting the charts in this manual
or by using the following formula:
(Height of Target in Yards x 1,000)
÷
Height of Target in Mils = Range of the Target in Yards
This formula will also give results in metric terms if meters instead of yards are used
in the equation.
For your convenience, Leupold has included range estimating tables (see Tables 1-6).
Four of these tables are calculated to the nearest 0.5 mil and two (a special sub-yard and
a special sub-meter target size tables) are calculated to the nearest 0.25 mil. To use these
tables, locate the actual size of the target along the top of the table and the apparent size
of the target, as measured in mils, along the side of the table. Follow both until they
converge. This is the estimated distance to the target.
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