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 . . . . . . . . . . . . . . . . . . 2
Adjustments . . . . . . . . . . . . . . . . . . . 4
Mounting . . . . . . . . . . . . . . . . . . . . . 10
Maintenance . . . . . . . . . . . . . . . . . . 18
Troubleshooting . . . . . . . . . . . . . . . . 19
Vortex Service and Repair Policy . . . . . . 20
1
Razor 5–20x50 Riflescope Specifications
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Waterproof |
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Yes |
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Fogproof |
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Argon gas purging |
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Length |
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15.8 inches (402 mm) |
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Mounting Length |
6.9 inches (175 mm) |
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Weight |
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35.2 ounces (1000 g) |
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Eye Relief |
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3.9 inches (100 mm) |
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Field of View |
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5x: 22.0 feet /100 yards (4.2°) |
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20x: 5.76 feet /100 yards (1.1°) |
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Recoil Tested |
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Rated for .50 BMG |
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Battery |
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CR2032 |
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2.5” |
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2.9” |
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(Eyepiece) |
(64mm) |
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(74mm) |
(Sunshade) |
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1.74” |
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2.33” |
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(43mm) |
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(58mm) |
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4.0” (102mm) |
6.9” (175mm) |
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4.9” (125mm) |
4.0” (102mm) |
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15.8” (402mm) |
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Razor HD Models |
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MOA |
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MRAD |
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Adjustment Graduation |
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1/4 MOA |
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.1 MRAD |
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Elevation Adjustment |
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125 MOA |
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36 MRAD |
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Windage Adjustment |
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125 MOA |
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36 MRAD |
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Travel Per Rotation |
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15 or 25 MOA |
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5 or 10 MRAD |
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The Vortex Razor HD 5-20x50 Riflescope
RZR Zero Stop and Elevation
Adjustment Knob
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Windage |
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Adjustment Knob |
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MagView |
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Objective Lens |
Illumination Knob |
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and Battery Cover |
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Side Parallax Focus
Magnification
Adjustment Ring
Reticle Focus
Radius Bar
(3) Turret Cap
Retaining Screws
Zero Reference
Line
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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 adjustments:
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 bullet’s point-of-impact to change.
Elevation
Adjustment Knob
Windage 
Adjustment Knob
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.
If the adjustment is in MOAs, |
If the adjustment is in mrads, |
the turret will display |
the turret will display |
“1 Click = ¼ MOA”. |
“1 click = 1/10 mrad”. |
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.
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 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.
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