Vortex Optics RAZOR HD 5-20X50 RIFLESCOPE — First Focal Plane - Manual (Page 8)

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Place the riflescope on bottom ring halves and loosely install
the upper ring halves. Before tightening the scope ring
screws, adjust for maximum eye relief to avoid injury from
recoil:
Eye Relief and Reticle Alignment
1. Set the riflescope to the middle of its magnification range.
2. Slide the riflescope as far forward as possible in the rings.
While viewing through the riflescope in a normal shooting
position, slowly slide the riflescope back towards the shooter’s
face—paying attention to the field of view. Just as the full view
becomes visible, stop.
3. Without disturbing the front-back placement, rotate the
riflescope until the vertical crosshair exactly matches the
vertical axis of the rifle. Use a reticle leveling tool, hanging
weight on a rope (see next page), or an adjustable set of feeler
gauges for this procedure.
4. After aligning the reticle, tighten and torque the ring screws
down per the manufacturer’s instructions.
Bubble Level
After the riflescope is in the rings and the reticle matches
the vertical axis of
the rifle, the bubble
level may be mounted
to the riflescope
tube. Attach the level
to a location on the
scope tube that allows
good visibility while
in shooting position
and does not block
view of parallax or
windage knobs. Most
shooters will prefer
mounting the level on
the forward section of
the riflescope tube.
1. Confirm the vertical orientation of the reticle by hanging
a weight from a heavy cord at a distance out in front of the
riflescope.
2. Visually level the bubble between lines and tighten screws
using thumb and forefinger on short end of hex wrench.
Confirm the vertical orientation of the reticle.
Bubble Level
Vertical Reference
Use of an adjustable set
of feeler gauges between
a one-piece base and
flat bottom section of the
riflescope to square the
riflescope (and reticle) to
the base.
Example of Squaring the Riflescope