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Vortex

Vortex Diamondback Rifle Scope 4-12x40 VMR-1 Reticle DBK-10025

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

4-12x Magnification

Range for flexible target acquisition

40 Mm

Objective lens for a balanced

Exposed Tactical

Turrets for dialing elevation and

Zero-reset Feature

Lets you re-index turret zero

Fiber Optic

Rotation indicators provide a visual

$299.99
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SKU: DBK-10025-875874008694

Overview

Built for hunters who want a practical dialing scope for longer shots, this 4-12x optic pairs a 40 mm objective with exposed tactical turrets for elevation and windage adjustments. The 1/4 MOA clicks, zero-reset feature, and fiber optic rotation indicators are aimed at making turret management straightforward after sight-in. With 3.8 inches of eye relief and a field of view from 23.6 to 7.9 feet at 100 yards, it offers a versatile setup for field use where quick target acquisition and deliberate hold adjustments both matter.

Why Hunters Choose the Vortex

Exposed Tactical

Turrets support dialing elevation and

Zero-reset Feature

Lets you re-index turret reference

Fiber Optic

Rotation indicators provide a clear

4-12x Magnification

Flexibility for close-to-mid and longer

40 Mm

Objective lens and 1-inch tube

Key Features

  • 4-12x magnification range for flexible target acquisition at varied distances
  • 40 mm objective lens for a balanced scope profile
  • Exposed tactical turrets for dialing elevation and windage adjustments
  • Zero-reset feature lets you re-index turret zero marks after sight-in
  • Fiber optic rotation indicators provide a visual cue of turret position
  • 1/4 MOA adjustment graduation with 12 MOA travel per rotation
  • 3.8-inch eye relief and 23.6-7.9 feet field of view at 100 yards

Best Used For

  • Hunters dialing elevation and windage for extended-range shots
  • Shooters wanting exposed tactical turrets with zero-reset capability
  • Users who prefer a 4-12x scope for versatile field and range use
  • Rifles set up for precise 1/4 MOA adjustments and repeatable turret tracking

Specifications

Adjustment Graduation1/4 MOA
Exposed Tactical TurretsYes
Eye Relief3.8 inches
Fiber Optic Rotation IndicatorsYes
Field Of View23.6-7.9 feet/100 yards
Magnification4-12x
Objective Lens Diameter40 mm
ReticleVMR-1
Travel Per Rotation12 MOA
Tube Size1 inch
Turret StyleTactical
Zero Reset FeatureYes

Pros

  • Exposed tactical turrets support dialing elevation and windage adjustments for extended-range use.
  • Zero-reset feature lets you re-index turret reference marks after sight-in.
  • Fiber optic rotation indicators provide a clear visual cue of turret position.
  • 4-12x magnification offers flexibility for close-to-mid and longer shots.
  • 40 mm objective lens and 1-inch tube are clearly specified for setup planning.

Considerations & Trade-offs

  • The exposed tactical turrets are geared toward dialing elevation and windage, so this scope is less streamlined for hunters who prefer a simple set-and-forget setup.
  • The 4-12x magnification range is versatile, but it does not reach the higher-end magnification some long-range shooters may want for more distant targets.
  • The 40 mm objective keeps the profile moderate, but it also means the scope is not built around maximum light-gathering size.
  • The 1/4 MOA adjustments and 12 MOA per rotation support precise dialing, though they may require more turret movement for larger corrections.

Suggested Comparisons

  • Hunting rifle scopes
  • Long-range rifle scopes
  • Variable-power scopes
  • Tactical turret scopes

Suggested Accessories

  • Scope rings
  • Lens caps
  • Rifle sling
  • Bore guide

Frequently Asked Questions

What magnification range does this scope offer?

The scope has a 4-12x magnification range.

What is the objective lens diameter?

The objective lens diameter is 40 mm.

Does this scope use exposed tactical turrets?

Yes. The product description states it has exposed tactical turrets for dialing elevation and windage, along with a zero-reset feature and fiber optic rotation indicators.

What is the adjustment graduation and travel per rotation?

The listed adjustment graduation is 1/4 MOA, and travel per rotation is 12 MOA.

What tube size does it use?

The scope uses a 1-inch tube.