Vortex Optics VIPER PST 2.5-10X44 RIFLESCOPE - Manual (Page 10)

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RIFLESCOPE
Align the elevation turret cap.
Align the windage turret cap.
Indexing the Windage Knob
1. Loosen the three retaining screws on windage turret cap.
2. Carefully rotate the cap until the “0” mark on the cap matches up
with the “0” reference line on the turret post. Be sure that the cap is
freely turning and that you don’t rotate the actual turret mechanism.
3. Re-tighten the windage knob retaining
screws, but do not overtighten. Use of
thumb and forefinger on the short end
of the hex wrench will provide sufficient
force
Once the windage and elevation knobs
are correctly indexed to the zero mark,
temporary corrections can be safely dialed
into the scope without worry of losing the
original zero.
Note: If re-zeroing at a future
time, be sure to remove all CRS
shims before sight-in.
Correct alignment for zero point.
Using the CRS Zero Stop
Once the CRS shims are installed, the elevation dial will stop turning
shortly past the original zero point when being returned (turning
clockwise direction) from a temporary elevation adjustment.
Turn the elevation knob a partial turn in a counter-clockwise direction
until the Radius Bar is
correctly aligned with scope
axis and zero marks match.
This setting will match the
original zero point.
Point at which the knob stops turning.
3. After filling the center gap on the post with shims, replace the
elevation cap.
4. Align the turret cap so the “0” mark on
the cap matches up with the open slot of
the turret shroud and the indicator line
on the scope body. Again, be sure not to
rotate the actual turret mechanism in the
process.
5. Re-tighten the retaining screws, but do not overtighten. Use of thumb
and forefinger on the short end of the hex wrench will provide sufficient
force.