Vortex Optics VIPER PST 2.5-10X44 RIFLESCOPE User Manual
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RIFLESCOPE
r
ifleSco
pe
m
ounTing
To get the best performance from your Vortex Viper PST riflescope,
proper mounting is
essential. Although not
difficult, the correct
steps must be followed.
If you are unsure of your
abilities, it would be best
to use the services of a
qualified gunsmith.
Centering of the Reticle
The Vortex Viper PST riflescope is pre-set from the factory with the
reticle in the center of the adjustment ranges.
If you have changed the settings and wish to approximately reset the
reticle to the center, this can be done easily:
1. Turn the windage or elevation dial as far as possible in either
direction. Do not force the dial. As soon as any resistance is felt, stop
turning.
2. Carefully count the dial rotations while turning the dial back in the
opposite direction. Stop turning as soon as resistance is felt.
3. Turn the dial the other direction to half the amount of rotations
counted in step one.
Complete this procedure for both windage and elevation dials to
approximately center the reticle
.
Rings and Bases
Mount an appropriate base and matching rings to your rifle according to
the manufacturer’s instructions. The Vortex Viper PST riflescopes require
30 mm rings.
Vortex Optics highly recommends using the Vortex Precision Matched
30 mm ring sets which may be purchased from an authorized Vortex
riflescope dealer. These rings will mount to any Picatinny spec base.
Note: If shooting at distances in excess of 800 yards with 4–16x50 or
6–24x50 models, Vortex Optics recommends use of a 20 MOA canted
Picatinny rail or 30 mm rings with adjustable offsets. These can be
purchased through companies such as Badger Ordnance, Barrett Mfg.,
EGW, Burris, and others.
If using an aftermarket base and ring setup, use the lowest ring height that
will provide complete clearance of scope and rifle—avoiding any contact
with barrel, receiver, bolt handle or any other part of the rifle. A low
mounting will help assure proper cheek weld, aid in establishing a solid
shooting position, and promote fast target acquisition.
Use 30 mm rings.