Vortex Optics RECON R/T 15X50 - WITH VMS MONOCULAR User Manual
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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 target (2 yards) at 4 mrads yields 500 yards.
2 x 1000
4 mrads
500 Yards
=
Be sure reticle is in focus before ranging. Using either
the vertical or horizontal mrad scale, place the reticle
on the target of known dimension and read the number
of mrads spanned. Obtain maximum accuracy in
ranging by calculating exact mrad measurements—try
to estimate mrad measurement in 1/10s if possible.
The Recon reticle uses both 1 and .5 mrad graduations
on the crosshair to help calculate fractions of mrads.
Fine crosshairs subtend .05 mrads.
Range (Yards)
=
Target Size (Yards) x 1000
Measured mrads
Range (Yards)
=
Target Size (Inches) x 27.8
Measured mrads
Range (Meters)
=
Target Size (Meters) x 1000
Measured mrads