Vortex Optics EBR-556 MOA User Manual
Vortex Razor HD 1-4x24 Riflescope
EBR-556 MOA Reticle
At Vortex Optics, the need for high-performance,
precision optics is the driving force behind all
that we do.
That’s why we carefully built the Razor HD riflescope
TM
to provide shooters with the ultimate short and medium
range tactical riflescope. Specifically designed for the
55 gr. 5.56 mm round (also .223 Remington) and the
popular AR15 platform, Vortex Razor 1-4x24 EBR556 is a unique, compact high performance riflescope
intended for close range CQB situations as well as longer
range precision shooting out to 700 yards using the
patented Vortex EBR-556 reticle.
Specifications . . . . . . . . . . . . . . . . . . 3
Adjustments . . . . . . . . . . . . . . . . . . . 4
Mounting . . . . . . . . . . . . . . . . . . . . . 10
Sight-in . . . . . . . . . . . . . . . . . . . . . . 13
Shooting . . . . . . . . . . . . . . . . . . . . . 16
Maintenance . . . . . . . . . . . . . . . . . . 22
Troubleshooting . . . . . . . . . . . . . . . . 23
Vortex Service and Repair Policy . . . . . . . . . . 24
1
The Vortex Razor HD 1–4x24 Riflescope
Elevation
Adjustment Knob
Windage
Adjustment Knob
MagVie w
Objective Lens
Elevation Knob
Battery Cover
Illumination Knob
(3) Turret C ap
Retaining Screws
Zero Reference
Line
Magnification
Adjustment Ring
Radius Bar
Reticl e Focus
Dual Use: Shooting Tactical / Hunting
2
4
Fast Fo cus
Eyepiece
Razor 1–4x24 Riflescope Specifications
Waterproof Yes
Fogproof Argon gas purging
Lengt h 10.3 inches (2 69.2mm)
Mounti ng Length 6.5 inc hes (165.1mm)
Weight 20.2 ounce s (572.66 g)
Eye Reli ef 3.9 inches (99. 6 mm)
Field of V iew 94.5 –24.2 fee t/100 yards (18 –4.6°)
Reticle Style EBR-556
Winda ge 200 MOA Tot al Travel
Elevat ion 200 MO A Total Travel
Turret Adj ustment 24 MOA Per Ro tation
1/4 MOA Per Click
Recoil Te sted Rated fo r 50 BMG
Battery CR2032
Dimensions
2.0”
(78.7mm)
1.3”
(40.6mm)
3.0”
(53.3m m)
(Eyepiec e)
1.7”
(31.8mm)
.5”
(91.4mm)
6.4” ( 165.1mm)
10.3” (269.2mm)
Accessories included with the Razor HD
Flip cap l ens cover wit h killFLA SH® ARD
Cleaning cloth
3
5
3.6”
(12.7mm)
Riflescope Adjustments
Reticle Focus Adjustment
The Vortex Razor HD 1–4x24 riflescopes use a fast focus
eyepiece, designed to quickly
and easily adjust the focus on the
riflescopes reticle.
To adjust the reticle focus, look
through the riflescope at a blank
white wall or up at the sky. Turn
the eyepiece focus knob in or out
until the reticle image is as crisp as
possible. Try to do this quickly, as
your eye will try to compensate for
an out of focus reticle.
Once this adjustment is complete, it is not necessary to
re-focus every time the scope is used. However, as your
eyesight may change over time you should re-check this
adjustment periodically.
Warning: Looking directly at the sun through a riescope or any optical
instrument can cause severe and permanent damage to your eyesight.
4
6
Windage and Elevation Adjustments
The Vortex Razor HD 1–4x24 riflescope incorporates
precision finger adjustable elevation and windage dials with
audible clicks.
Elevation
Adjustment Knob
To make adjustments:
• Turn the adjustment dial
in the appropriate direction
Up/Down or Left/Right
indicated by the arrows.
• Move the dials in the
direction you wish the
bullets point of impact to
change.
Windage
Adjustment Knob
The Razor 1–4x24 riflescope uses clicks scaled in ¼ minute
of angle measurements (MOAs) so each small click will
move the point of impact 1/4 MOA. One full MOA equals
1.05 inches at a 100 yard distance: ¼ MOA will equal .26
inches at 100 yards, .52 inches at 200 yards, .78 inches at
300 yards, etc.
Example: At a 100 yard sight-in distance, it will take four clicks of
the knob to move a bullet’s point-of-impact 1.05 inches.
5
7
Radius Bar
The Vortex Razor HD riflescopes incorporate the patented
Radius Bar to visually assist in keeping
track of the correct turret knob position
at the rifle’s zero. By watching the
position of the bar during field use, the
shooter can quickly verify the correct
turret knob position.
In a CQB type of situation, the shooter
Radius B ar
can also use the Radius Bar as a quick visual aiming
reference.
To benefit from the Radius Bar, the turret cap must be
indexed with the zero reference line on turret post. See the
Sight In section for details on indexing cap.
Variable Power Adjustment
To change magnifications, turn the magnification ring
to the desired level. The
patented Vortex MagView
will provide a low light
reference for magnification
MagVie w
level.
6
8
Illumination Adjustment
The Vortex Razor 1–4x24 riflescopes use a variable intensity
reticle illumination system to aid in low light performance.
Illumination intensity levels will vary from bright to ultra low
intensity compatible with night vision devices at the lowest
setting.
The illumination knob allows for 11 levels of brightness
intensity; an off click between each level
allows the shooter to turn the illumination
off and return to a favored intensity level
with just one click. The top six settings
(6, 7, 8, 9, 10 and 11) are visible in the
daytime, depending on the background
color. Settings below 6 are for low light
Illumination Knob
use when the user’s eyes have adjusted to
lower light levels. Lowest settings are for use with night vision
devices.
To change the battery, unscrew outer cap with a coin.
Remove the battery and replace with a new one.
Parallax Adjustment
The Razor 1-4x24 series riflescopes are non-adjustable
for parallax correction and are set from the factory to be
parallax-free at 100 yards.
• At distances under 100 yards, parallax error is less than 1 inch.
• At distances over 100 yards parallax error is minimal; using
good consistent shooting form and cheek weld will prevent most
problems with parallax.
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