Vortex Optics VIPER PST 1-4X24 RIFLESCOPE User Manual
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RIFLESCOPE
Elevation
Knob
Windage Knob
Vortex Viper PST riflescopes incorporate precision finger adjustable elevation
and windage dials with audible clicks.
Windage and Elevation 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.
To make adjustments:
With each click of the Viper PST moving the point-of-impact .2 mrad
(.72 inches), two clicks will move the bullet’s point-of-impact 1.44 inches
at a 100 yard sight-in distance. At 100 meters, two clicks will move the
point-of-impact four centimeters.
With each click of the Viper PST moving the point-of-impact 1/2 MOA,
it will take two clicks of the knob to move a bullet’s point-of-impact 1.05
inches at a 100 yard sight-in distance.
MOA Adjustments
MRAD Adjustments
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Vortex Viper PST riflescopes use a fast focus eyepiece designed to quickly
and easily adjust the focus on the riflescope’s reticle.
Reticle Focus
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.
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.
To adjust the reticle focus:
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.
This Viper PST 1-4x24 riflescope does not have a parallax focus and is
factory focussed at a distance of 100 yards. Using good consistent shooting
form and cheek weld when shooting at distances other than 100 yards will
minimize most error problems associated with parallax.
About Parallax