Description
Last update on March 23, 2023 // Source: Amazon API
Rifle Scope Product Details
Vortex Optics Diamondback Tactical Second Focal Plane Riflescopes
Rifle Scope Product Features
About this item
The Diamondback Tactical Second Focal Plane 4-12×40 is built on durability and performance and offers features that will benefit any rifle platform.
Extra-low dispersion glass and XR fully multi-coated lenses give the brightest views possible. The extremely accurate hashmarked based reticle works especially well at extended ranges.
VMR-1 MOA reticle can be used to effectively determine ranges, holdovers, windage corrections and moving target leads.
With distinctive, responsive dialing, the exposed tactical turrets are built with the shooter in mind. A zero reset feature keeps zeroing simple and quick.
Strong o-ring seals, nitrogen purging, and shockproof construction guarantees rugged, waterproof and fogproof performance.
Product Overview
Diamondback Tactical 4-12X40 VMR-1 Riflescope (DBK-10025)
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.
Exposed tactical turrets built for dialing elevation and windage allow quick and precise bullet drop and wind drift compensation at extended ranges. When we say precise-we mean it. These turrets track better than any Bloodhound and reliably return to zero every time. A zero-reset feature lets you re-index the zero reference marks on both turrets after sight in, while fiber optic rotation indicators integrated into the turrets provide a visual cue of your turret’s position.
Dual use for Shooting Tactical/Hunting.
Specs
Magnification: 4-12x
Objective Lens Diameter: 40 mm
Eye Relief: 3.9 in
Field of View: 23.6-7.9ft/100yd
Tube Size:1 in
Turret Style: Tactical
Reticle: VMR-1 MOA
VMR-1 MOA Reticle
Designed to maximize long distance shooting and ranging abilities, the VMR-1 MOA reticle can be used to effectively determine ranges, holdovers, windage corrections and moving target leads.
Second focal plane (SFP) reticles are located near the scope’s eyepiece behind the image erecting and magnifying lenses. This style of reticle does not visually change in size when you change the magnification. The advantage of an SFP reticle is that it always maintains the same appearance. Listed reticle subtensions used for estimating range, holdover, and wind drift correction are only accurate at one particular magnification.
Other Features
Optical & Internal
XD Lens Elements: Extra-low dispersion (XD) glass increases resolution and color fidelity, resulting in crisp, sharp images.
XR Fully Multi-Coated: Proprietary coatings increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
Precision-Glide Erector System: Uses premium components in the zoom lens mechanism to ensure smooth magnification changes under the harshest conditions.
Convenience
Fast Focus Eyepiece: Allows quick and easy reticle focusing.
Fiber Optic Radius Bar: The fiber optic Radius Bar visually assists tracking turret rotations.
Magnification Rib: The raised rib on the magnification ring facilitates fast magnification changes in the heat of action.
Construction
Aircraft-Grade Aluminum: Constructed from a solid block of aircraft-grade aluminum for strength and rigidity.
Hard Anodized Finish: Highly durable low-glare matte finish helps camouflage the shooter’s position.
Exposed Tactical Turrets: The Diamondback Tactical scopes feature tactical windage and elevation turrets with Zero Reset making adjustments back to zero easy and quick.
DBK-10023 DBK-10025
Model 3-9×40 4-12×40
Adjustment Graduation 1/4 MOA 1/4 MOA
Travel Per Rotation 12 MOA 12 MOA
Max Elevation Adjustment 80 MOA 70 MOA
Max Windage Adjustment 80 MOA 70 MOA
Parallax Setting 100 yards 100 yards
About the Vortex Scope Maker
Vortex is a premium company for long gun scopes, optics, mounting solutions, and other components used for guns like rifles and long guns. They innovate and supply their mounts, scopes, and related products by choosing materials which are resilient and long lasting. This includes the Vortex Optics Diamondback Tactical Second Focal Plane Riflescopes by Vortex. For additional shooting items, visit their website.
Glass Information
Rifle scopes enable you to precisely align a rifle at different targets by lining up your eye with the target over a range. They accomplish this through magnification by making use of a set of lenses inside the scope. The scope’s positioning can be adapted to take into account varied environmental considerations like wind and elevation increases or decreases to make up for bullet drop.
The scope’s purpose is to help the shooter understand exactly where the bullet will hit based on the sight picture you are viewing through the scope as you align the scope’s crosshair or reticle with the intended point of impact. A lot of modern-day rifle scopes have around 11 parts which are arranged within and externally on the scope. These optic pieces include the rifle scope’s body, lenses, windage and elevation turrets, focus rings, and other parts. See all eleven parts of a scope.
Rifle Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The type of focal plane a scope has decides where the reticle or crosshair lies in relation to the optic’s magnifying adjustments. It actually implies the reticle is located behind or in front of the magnifying lens of the scope. Looking for the very best type of rifle scope is based on what style of shooting you intend on undertaking.
About First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These kinds of scopes are beneficial for:
- Quick acquisition, far away types of shooting
- Shooting scenarios where computations are minimal
- Experienced shooters who understand their aim point “hold over” and “lead” ratios for their weapon
- Shooters who don’t mind the reticle is bigger and takes up more visual eyesight area than a SFP reticle
Second Focal Plane Optic Facts
Second focal plane optics (SFP) come with the reticle behind the magnification lens. This induces the reticle to remain at the same size in relation to the quantity of magnification being used. The end result is that the reticle dimensions change based upon the zoom employed to shoot over longer ranges since the reticle measurements present different increments which can vary with the zoom. In the FFP illustration with the SFP glass, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick. These particular sorts of glass work for:
- Long distance kinds of shooting where shooters have additional time to make ballistic estimations
- Shooting where most of the shots take place within much shorter ranges and proximities
- Shooters who select a clearer optic sight picture with less area taken up by the enlarged FFP reticle
Magnification for Glass
The quantity of magnification a scope provides is determined by the diameter, density, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
About Single Power Lens Glass
A single power rifle optic or scope uses a magnification number designator like 4×32. This indicates the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of optic can not adjust since it is set from the factory.
Variable Power Lens Rifle Scope Info
Variable power rifle scopes have adjustable power. These types of scopes will note the magnification degree in a format such as 2-10×32. These numbers mean the magnification of the scope could be set in between 2x and 10x power. This always incorporates the powers in-between 2 and 10. The power modification is accomplished by operating the power ring part of the scope near the back of the scope by the eye bell.
Power Levels and Range
Here are some advised scope power settings and the ranges where they could be efficiently used. Bear in mind that higher magnification glass will not be as practical as lower magnification level scope and optics since excessive magnification can be a bad thing. The same concept relates to extended ranges where the shooter needs increased power to see precisely where to properly aim the rifle.
Lens Coating for Rifle Optics
All contemporary rifle scope lenses are coated. There are different types and qualities of glass lens coverings. When researching high end rifle targeting units, Lens coating can be a crucial aspect of defining the capability of the rifle. The lenses are among the most critical components of the optic given that they are what your eye sees through while sighting a rifle in on the target. The finish on the lenses protects the lens surface area and helps with anti glare capabilities from excess sunrays and color recognition.
HD Versus ED Optic Lens Coatings
Some scope manufacturers likewise use “HD” or high-definition lens finishes which use different techniques, chemicals, components, and polarizations to draw out separate colors and viewable definition through the lens. Some scope manufacturers use “HD” to refer to “ED” meaning extra-low dispersion glass.
Rifle Glass Lens Single Finishing Versus Multi-Coating
Different optic lenses can likewise have various coverings used to them. All lenses usually have at least some type of treatment or finishing used to them before being used in a rifle scope or optic.
Single layered lenses have a treatment applied to them which is typically a protective and boosting multi-purpose treatment. This lens treatment can safeguard the lens from scratches while decreasing glare and other less beneficial things experienced in the shooting environment while sighting in with the optic. The quality of a single layered lens depends on the scope maker and how much you paid for it. Both the manufacturer and amount are indications of the lens quality.
Some scope manufacturers also make it a point to define if their optic lenses are layered or “multi” coated. Being “better” depends on the manufacturer’s lens treatment innovation and the quality of products used in building the rifle scope.
Details on Anti-water Covering
Water on a lens does not help with keeping a clear sight picture through a scope at all. Many top of the line and military grade optic companies will coat their lenses with a hydrophilic or hydrophobic anti-water coating.
Alternatives for Installing Rifle Scopes on Firearms
Mounting options for scopes can be found in a few options. There are the standard scope rings which are individually mounted to the optic and one-piece scope mounts which cradle the scope. These various kinds of mounts also generally are made in quick release variations which use manual levers which enable rifle shooters to quickly install and remove the optics.
Scope Mounting Solutions with Hex Key Rings
Normal, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope installation rails on rifles. These types of scope mounts use two separate rings to support the optic, and are made from 7075 T6 billet aluminum which are developed for long range accuracy shooting. This type of scope mount is great for rifles which require a long lasting, sound mounting solution which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Scope Ring Mounts
These types of quick-release rifle scope mounts can be used to quickly connect and detach a scope from a rifle. If they all use a similar style mount, multiple scopes can often be swapped in the field. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten firmly to a flat top design Picatinny rail. This enables the scope to be sighted in while on the rifle, removed from the rifle, and remounted while retaining accuracy. These kinds of mounts are useful and handy for shooting platforms which are carried a lot, to remove the glass from the rifle for protection, or for aiming systems which are adopted between several rifles. An example of this mount type is the 30mm mount designed by the Vortex Optics manufacturer. It usually costs around $250 USD
Sealing and Gas Purging for Rifle Optic Tubes
Moisture inside your rifle scope can destroy a day of shooting and your costly optic by causing fogging and creating residue inside of the scope tube. The majority of scopes avoid moisture from entering the scope tube with a system of sealing O-rings which are waterproof.
Details on Glass Tube Gas Purging
Another element of preventing the accumulation of moisture inside of the rifle optic tube is filling the tube with a gas like nitrogen. Given that this space is currently taken up by the gas, the scope is less affected by climate shifts and pressure distinctions from the outside environment which might possibly permit water vapor to leak in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a good rifle scope to seek out.
