Vortex Diamondback 4-12x40 AO Dead-Hold BDC Riflescope   #DBK-412B

The Vortex 4-12x40 AO Diamondback is built to endure, perform, and excel. Its one-piece center-tube design is carefully constructed from 6061-T6 aluminum, and fitted with a precision adjustment system that allows for a generous amount of correction. The optical system is fully multicoated, and the entire assembly is then purged with argon gas for flawless all-weather performance.

Long-range target acquisition can be difficult, and having 4-12x magnification on tap will help get the job done in most cases. Twilight hunters will appreciate the highly efficient 40mm objective when the sun gets close to the horizon.

This Diamondback AO scope is configured with a 1.0" tube, an adjustable objective, 1/4 MOA adjustments with 66 MOA of travel, low-profile turrets, a Dead-Hold BDC reticle, and a matte black finish.

The Dead-Hold BDC reticle features four thin posts and cross hairs. The larger gate is designed to accommodate hold over points upon the 6 o'clock stadia. Second focal plane (non-magnifying) placement of the reticle maintains its size throughout the magnification range.

Features:

• Magnification:  4-12x
• Objective Lens Diameter:  40mm
• Main-Tube Diameter:  1.0"
• Linear Field of View:  4x: 32.4' @ 100 yd / 10.8 m at 100 m
                                12x: 11.3' @ 100 yd / 38 m at 100 m
• Exit Pupil Diameter:  4x: 10.0mm
                                12x: 3.3mm
• Eye Relief:  4x: 3.4" / 9.1 cm
                  12x: 3.1" / 8.4 cm
• Filter Size:  None
• Impact Point Correction:  1/4 MOA
• Maximum Windage/Elevation Adjustment:  Windage: 66 MOA/Elevation:  66 MOA
• Weatherproofing:  Water & Fogproof