Vortex Optics VIPER PST 2.5-10X44 RIFLESCOPE User Manual
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RIFLESCOPE
Elevation
Knob
Windage Knob
Windage and Elevation Adjustments
Vortex Viper PST riflescopes incorporate precision finger adjustable
elevation and windage dials with audible clicks.
To make adjustments:
1. Turn the adjustment knob in the
appropriate direction: Up/Down or
Left/Right as indicated by the arrows.
2. Following the directional arrows,
turn the knobs in the direction you
wish the bullet’s point-of-impact to
go to.
MOA Adjustments
With each click of the Viper PST moving the point-of-impact 1/4 MOA,
it will take four clicks of the knob to move a bullet’s point-of-impact 1.05
inches at a 100 yard sight-in distance.
MRAD Adjustments
With each click of the Viper PST moving the point-of-impact .1 mrad
(.36 inches), four clicks will move the bullet’s point-of-impact 1.44 inches
at a 100 yard sight-in distance. At 100 meters, four clicks will move the
point-of-impact four centimeters.
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Reticle Focus
Vortex Viper PST riflescopes use a fast focus eyepiece designed to quickly
and easily adjust the focus on the riflescope’s reticle.
To adjust the reticle focus:
1. Look through the riflescope at a
blank white wall or up at the sky.
2. Turn the eyepiece focus knob in or
out until the reticle image is as crisp
as possible.
Note: Try to make this particular
adjustment quickly, as the eye will try to compensate for an out-of-focus
reticle.
Once this adjustment is complete, it will not be necessary to re-focus every
time you use the riflescope. However, because your eyesight may change
over time, you should re-check this adjustment periodically.
Warning
Looking directly at the sun through a riflescope, or any optical instrument,
can cause severe and permanent damage to your eyesight.
Adjust the reticle focus.