User Manual

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RIFLESCOPE
This Viper PST 1–4x24 riflescope incorporates adjustable elevation
and windage dials with audible clicks. Each audible click moves the
bullet’s point-of-impact 1/2 of a minute of angle (MOA).
1/2 MOA closely corresponds to 1/2 inch at 100 yards, 1 inch at 200
yards, 1 1/2 inches at 300 yards...taking two (2) clicks to move the
bullet’s point-of-impact approximately one inch at 100 yards.
Windage and Elevation Adjustments
1. Begin adjusting the windage and elevation settings by first removing
the outer covers.
2. To make the adjustments,
dial the adjustment knob in the
appropriate direction (up/down
or left/right) as indicated by the
arrows. Move the turrets in the
direction you wish the bullet’s
point-of-impact to change.
After sight-in, you can re-align
the zero marks on the turret knobs
with the reference dots if you wish (see Resetting Adjustment Levels
with Zero Reset section on page 11). Replace the outer covers when
done
.
How to adjust windage and elevation settings
rifleScope AdjuSTmenTS
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.
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
To adjust settings, turn knobs.
Elevation
Knob
Windage
Knob
Adjust the reticle focus