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Vortex Diamondback Tactical riflescopes instruction manual

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This text is a transcription of the file in PDF format.


Specifically designed for discriminating hunters and shooters, the
Diamondback® Tactical series of riflescopes offer the highest levels
of performance and reliability. With generous long eye relief, rugged
construction and precise, smooth controls, the Diamondback Tactical
riflescopes are ready for any situation.

Vortex Diamondback Tactical 3-9x40

Vortex Diamondback Tactical 3-9x40


Reticle Focusing

Vortex Diamondback Tactical 3-9x40

Vortex Diamondback Tactical 3-9x40

Diamondback® Tactical riflescopes use a fast focus style eyepiece, which allows the reticle focus to be set quickly and easily.
To adjust the eyepiece:
• Look through the riflescope at a blank white wall
or up at the sky.
• Turn the eyepiece knob out until reticle image
is blurry, then slowly turn back in until reticle
is in sharp focus. Try to make this particular
adjustment quickly, as the eye will try to
compensate for an out-of-focus reticle.

Once this adjustment is complete, it will not
be necessary to re-focus every time you use the
riflescope. However, because your eyesight may change
over time, you should re-check this adjustment periodically.


Looking directly at the sun through a riflescope, or any optical instrument,
can cause severe and permanent damage to your eyesight.

Variable Power Adjustment

Vortex Diamondback Tactical 3-9x40

Vortex Diamondback Tactical 3-9x40

To change magnification, turn the
magnification ring to the desired level.






Windage and Elevation Adjustments

The Diamondback Tactical riflescope incorporates adjustable elevation and
windage dials with audible clicks. Each audible click moves the bullet’s
point-of-impact 1/4 of a minute of angle (MOA).
1/4 MOA closely corresponds to 1/4 inch at 100 yards, 1/2 inch at 200
yards, 3/4 inch at 300 yards—taking four (4) clicks to move the bullet’s
point-of-impact approximately one inch at 100 yards.


How to adjust windage and elevation settings

Referencing the directional arrows on scope body, turn the windage and
elevation turrets in the direction you wish to move the bullet’s point- ofimpact.

Vortex Diamondback Tactical 3-9x40

Vortex Diamondback Tactical 3-9x40


Rings and Bases

Mount an appropriate base and matching rings to your rifle according to
the manufacturer’s instructions. Your new Diamondback Tactical riflescope
will require 1-inch rings.

Re-Index Adjustment Dials

Diamondback Tactical riflescopes feature windage/elevation dials that allow
you to re-index the zero indicator after sight-in without disturbing your
settings. Though not required, this process will allow you to quickly return to
your original zero if temporary corrections are dialed in the field. Reset the
windage and elevation dials in this way:

Vortex Diamondback Tactical 3-9x40

Vortex Diamondback Tactical 3-9x40




The fully waterproof and fogproof Diamondback Tactical riflescope requires
very little routine maintenance other than periodically cleaning the exterior
lenses. The exterior of the scope may be cleaned by wiping with a soft, dry

When cleaning the lenses, be sure to use products, such as the VTX Fog
Free cleaning products or Lens Pen, that are specifically designed for use on
coated optical lenses.

• Be sure to blow away any dust or grit on the lenses prior to wiping
the surfaces.

• Using your breath, or a very small amount of water or pure
alcohol, can help remove stubborn things like dried water spots.


All components of the Diamondback Tactical riflescopes are permanently
lubricated, no additional lubricant should be applied.

Note: Other than to remove the turret caps, do not attempt to disassemble
any components of the riflescope. Disassembling of riflescope may void


If possible, avoid exposing your Diamondback Tactical riflescope to direct
sunlight or any very hot location for long periods of time.


The VIP Warranty

We build optics based on our commitment to your absolute
satisfaction. That’s why our products are unconditionally guaranteed
and we make this Very Important Promise to you—a Very Important
Rest assured that in the event your optic
becomes damaged or defective, we will repair or
replace the riflescope at no charge to you. Call
us at 800-426-0048 for prompt, professional,
and friendly service.

2120 West Greenview Drive
Middleton, WI 53562

The VIP Warranty does not cover loss, theft, deliberate damage or cosmetic
damage that does not hinder the performance of the product.


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