Vortex Optics RAZOR HD 1-4X24 (MOA) - EBR-556 MOA - Manual (Page 15)

Correct elevation and windage
cap placement.
15 14 13
After the rifle has been zeroed at 100 yards, the elevation
and windage knobs should be re-indexed to their zero
indicators. This is a useful feature which allows you to
quickly and accurately keep track of elevation or windage
corrections dialed on the turrets in the field and quickly
return to an original zero point setting.
After completing the final sight-in:
• Loosen the three
elevation turret cap
retaining screws using the
2.0 mm hex wrench and
carefully rotate turret cap
until the “0” mark on cap
matches up with reference
line on turret post. Be sure
that the cap is turning freely
and that you don’t rotate the
actual turret mechanism.
• Re-tighten retaining screws using thumb and forefinger
on short end of hex wrench.
Repeat procedure with the windage turret.
After this adjustment, the turret cap zero marks will
correspond with the 100-yard zero on the rifle.