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Precision Ranging with mrads
Mrad measurements are very effective for ranging using
simple formulas. Knowing the size of the target or a
nearby object is essential to using these formulas.
Accurate measuring will depend on a very steady hold.
Be sure to solidly brace the arms when measuring or use
a tripod mount for maximum accuracy. Once you have
an accurate mrad reading, use one of the formulas to
calculate the distance.
Ranging a 6-foot man (2 yards) at 4 mrads yields 500 yards.
2 x 1000
4 mrads
500 Yards
=
Range (Yards)
=
Target Size (Yards) x 1000
Measured mrads
Be sure the reticle is in focus before ranging (see
Adjusting the Reticle Focus). Using either the vertical
or horizontal mrad scale, place the reticle on the target
of known dimension and read the number of mrads
spanned. Maximum accuracy in ranging will be obtained
by calculating exact mrad measurementstry to
estimate mrad measurement in 1/10s if possible. To help
calculate fractions of mrads, the Viper R/T reticle uses
both 1 and .5 mrad graduations on the crosshair. Fine
crosshairs subtend .05 mrads.
Range (Yards)
=
Target Size (Inches) x 27.8
Measured mrads
Range (Meters)
=
Target Size (Meters) x 1000
Measured mrads
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