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Vortex 4-12x40 Diamondback Tactical Riflescope

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User Manual for Vortex 4-12x40 Diamondback Tactical Riflescope

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Vortex 4-12x40 Diamondback Tactical Riflescope Contents of the user manual for the Vortex 4-12x40 Diamondback Tactical Riflescope
  • Product category: Riflescopes Vortex
  • Brand: Vortex
  • Description and content of package
  • Technical information and basic settings
  • Frequently asked questions – FAQ
  • Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
  • Authorized service for Vortex Riflescopes

Vortex 4-12x40 Diamondback Tactical Riflescope Vortex 4-12x40 Diamondback Tactical Riflescope Vortex 4-12x40 Diamondback Tactical Riflescope Vortex 4-12x40 Diamondback Tactical Riflescope Vortex 4-12x40 Diamondback Tactical Riflescope Vortex 4-12x40 Diamondback Tactical Riflescope
User manual for the Vortex 4-12x40 Diamondback Tactical Riflescope contain basic instructions that need to be followed during installation and operation. Before starting your appliance, the user manual should be read through carefully. Follow all the safety instructions and warnings, and be guided by the given recommendations. User manual is an integral part of any Vortex product, and if it is sold or transferred, they should be handed over jointly with the product. Following the instructions for use is an essential prerequisite for protecting health and property during use, as well as recognition of liability on the part of the manufacturer for possible defects should you make a warranty claim. Download an official Vortex user manual in which you will find instructions on how to install, use, maintain and service your product.

And do not forget – unsuitable use of a Vortex product will considerably shorten its lifespan!



Product description

Vortex Optics' 4-12x40 Diamondback Tactical Riflescope is a versatile riflescope featuring durable construction, high-quality optics, a zoom eyepiece, and the Vortex-exclusive VMR-1 reticle. The reticle lies in the 2nd focal plane and offers a modified duplex style. The markings on the horizontal and lower-vertical axes aid in ranging and ballistic and wind compensation. The optical system produces crisp and clear images with accurate color representation by utilizing Extra-Low Dispersion (XD) glass and Vortex's proprietary XR optical coatings. While the XD glass corrects color and image distortions on the periphery of the field of view, the anti-reflective XR coatings increase transmission of light and reduce glare.

The high-quality aluminum housing is built around a durable single-piece 1" maintube. One of the defining highlights of the Diamondback tactical scope is its Precision-glide erectir system that ensures that zooming action remains smooth under the most challenging conditions. The scope's windage and elevation provide exposed graduated turrets with red fiber optic position markers on the knobs. The entire construction is robust, nitrogen-filled fogproof, and O-ring sealed waterproof to ensure reliable performance for years of service.
    VMR-1 Reticle
    • 2nd focal plane
    • Modified duplex style
    • Four medium posts
    • Crosshair with major and minor compensation bars
    • At 12x magnification:
      • Crosshair line subtends 0.25 MOA
      • Posts subtend 1.7 MOA
      • Major bars are 1.5 MOA long
      • Minor bars are 0.7 MOA long
      • Bars are spaced at 2 MOA intervals
      • Gate between horizontal posts is 36 MOA
      • Crosshair line extends down from center 30 MOA
    • Parallax-free at 100 yd
      Optical Performance
      • 4-12x magnification
      • 40 mm objective lens
      • XD: Extra-Low Dispersion glass elements reduce color distortions and improve true color
      • XR: Anti-reflective fully multi-coated to increase brightness and resolution
        Use and Handling
        • 1/4 MOA per click impact point correction
        • Windage and Elevation adjustment range of 70 MOA
          Construction Details
          • High-quality aluminum housing
          • Single-piece 1" maintube
          • Exposed finger-operated turrets
          • Fiber optic illumination radius bar on each turret
          • Fast focus eyepiece with a low-profile zoom lever
          • Corrosion-resistant low-glare hard anodized finish
          • Nitrogen-filled and O-ring sealed for water and fogproof performance
          • Precision-glide erector system enables smooth zoom in all weather conditions
          UPC: 875874008694 In the Box Vortex 4-12x40 Diamondback Tactical Riflescope (VMR-1 Reticle, Matte Black)
        • 2 x Lens Caps
        • Lens Cloth
        • Limited Lifetime Warranty
        Table of Contents




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Technical parameters

Vortex DBK-10025 Specs

Magnification 4 to 12x
Objective Lens Diameter 40 mm
Field of View 4x: 23.6' @ 100 yd / 7.9 m @ 100 m
12x: 7.9' @ 100 yd / 2.6 m @ 100 m
Exit Pupil Diameter 4x: 10 mm
12x: 3.3 mm
Eye Relief 3.8" / 96.5 mm
Reticle Type VMR-1 Reticle (Second Focal Plane)
Impact Point Correction 1/4 MOA per Click
Windage Adjustment 70 MOA
Elevation Adjustment 70 MOA
Parallax Correction Yes, 100 yd / 91.4 m
Water Resistance Waterproof
Fogproof Yes, Nitrogen Filled
Maintube Diameter 1"
Battery None
Dimensions Length: 14.2" / 36.1 cm
Weight 16.2 oz / 459.3 g
Package Weight 2.015 lb
Box Dimensions (LxWxH) 15.95 x 4.5 x 4.3"

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