Vortex Optics RAZOR HD 5-20X50 EBR-2 5 MRAD TURRETS User Manual

Vortex 5-20x50 Riflescope

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

to provide shooters with the ultimate long range tactical riflescope. Built on an incredibly tough one piece 35mm main tube and using a state-of-the-art optical system and erector mechanism, the Razor 5–20x50 delivers superior accuracy and rugged reliability under the harshest conditions.

Specifications . . . . . . . . . . . . . . . . . . 3

Adjustments . . . . . . . . . . . . . . . . . . . 4

Mounting . . . . . . . . . . . . . . . . . . . . . 10

Maintenance . . . . . . . . . . . . . . . . . . 18

Troubleshooting . . . . . . . . . . . . . . . . 19

Vortex Service and Repair Policy . . . 20

The Vortex Razor HD 5-20x50 Riflescope

RZR Zero Stop and Elevation

Adjustment Knob

Objective Lens

Side Parallax Focus

Magnification

Adjustment Ring

Radius Bar

(3) Turret Cap

Retaining Screws

Windage

Adjustment Knob

Zero Reference

Line

MagView

Reticle Focus

Illumination Knob

and Battery Cover

Razor 5–20x50 Riflescope Specifications

Waterproof Yes

Fogproof Argon gas purging

Length 15.8 inches (402 mm)

Mounting Length 6.9 inches (175 mm)

Weight 35.2 ounces (1000 g)

Eye Relief 3.9 inches (100 mm)

Field of View 5x: 22.0 feet /100 yards (4.2°)

20x: 5.76 feet /100 yards (1.1°)

Recoil Tested Rated for .50 BMG

Battery CR2032

(Eyepiec e) (Sunshade)

1.7”

(43mm)

4.0” (102mm)

2.5”

(64mm)

6.9” (175mm)

Adjustment Specifications

Reticle Style EBR 1 - MOA EBR 2 - MRAD

Windage 125 MOA 36 mrads

Elevation 125 MOA 36 mrads

Per Rotation 15 MOA 5 mrads

Per Click 1/4 MOA 1/10 mrads

Accessories included with the Razor HD

Flip cap lens cover with killFLASH

4-inch sunshade

35mm bubble level

2mm hex wrench

15.8” (402m m)

2.9”

(74mm)

4.9” (125mm) 4.0” (102mm)

ARD

2.3”

(58mm)

Riflescope Adjustments

Windage and Elevation Adjustments

Vortex 5–20x50 Razor riflescopes incorporate precision finger adjustable elevation and windage knobs with audible and tactile clicks.

To make adjust ments:

Elevation

Adjustment Knob

1. Turn the adjustment knob in the appropriate direction: Up/Down or Left/Right as indicated by the arrows.

2. Move the knobs in the direction you wish the

Windage

Adjustment Knob

bullet’s point-of-impact to change.

Depending on which version you have purchased, your Razor 5–20x50 riflescope will feature adjustments scaled in MOAs or mrads. If you are unsure of which scale is used, reference the top of the adjustment turret.

MOA Adjustments

Most shooters are familiar with the minute–of-angle (MOA) system commonly used in hunting riflescopes. MOA measurements are based on degrees and minutes: 360 degrees in a circle, 60 minutes in a degree, for a total of 21,600. When comparing MOAs and mrads, 3.44 MOAs are equal to 1 mrad. These angular measurements are used for ranging and correcting for the bullet’s trajectory drop in riflescopes.

Each click will move the point-of-impact 1/4 MOA. 1/4 MOA closely corresponds to .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.

MRAD Adjustments

The milliradian (mrad for short) is a form of angular measurement similar in concept to a degree although much finer. A degree is 1/360 of a circle; a milliradian is 1/6283 of a circle.

If the adjustment is in MOAs,

the turret will display

“1 Click = ¼ MOA”.

Each click will move the point-of-impact 1/10 mrad. 1/10 mrad equals .36 inches at 100 yards (1 cm at 100 meters), .72 inches at 200 yards (2 cm at 200 meters), 1.08 inches at 300

If the adjustment is in mrads,

the turret will display

“1 click = 1/10 mrad”.

yards (3 cm at 300 meters), etc.

Example: At a 100 yard sight-in distance, four clicks will move the

bullet’s point-of-impact 1.44 inches. At 100 meters, four clicks will

move the point-of-impact four centimeters.

Reticle Focusing

Parallax Adjustment

Vortex Razor riflescopes use a fast focus eyepiece designed to quickly and easily adjust the focus on the riflescope’s reticle.

Try to make this particular adjustment quickly, as the eye will try to compensate for an out-of-focus reticle.

Adjust the reticle focus

To adjust the reticle focus:

1. Look through the riflescope at a blank white wall or up at the sky.

2. Turn the eyepiece focus knob in or out until the reticle image is as crisp as possible.

Note: Once this adjustment is complete, it will not be necessary

to re-focus every time you use the riﬂ escope. However, because your

eyesight may change over time, you should re-check this adjustment

periodically.

The Razor HD 5–20x50 riflescope uses a side focus parallax adjustment which, when properly set, eliminates parallax errors. Properly setting a side focus parallax adjustment is a quick procedure. When properly set, the target image should be sharp and crisp.

To set the parallax:

1. First, be sure the reticle is correctly focused (see Reticle Focusing).

2. As accurately as possible,

Parallax is a phenomenon that

results when the target image

does not quite fall on the same

optical plane as the reticle within

the scope. When the shooter’s eye

is not precisely centered in the

eyepiece, there can be apparent

movement of the target in relation

to the reticle, which can cause a

small shift in the point of aim.

Parallax error is most problematic

for precision shooters using high

magniﬁ cation.

match the yardage number (distance you are shooting) on side focus parallax adjustment knob to the indicator arrow on the scope body.

3. Check the setting for accuracy by moving your head back and forth while looking through the scope. The setting is correct if there is no apparent

Adjust the side parallax knob

movement between the reticle and target. If there is apparent movement, adjust the focus knob slightly until the movement is eliminated.

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