Description
Last update on February 8, 2023 // Source: Amazon API
Rifle Scope Product Details
Sightmark Triple Duty 6-25×56 35mm MDD Riflescope
The Sightmark 6-25×56 Triple Duty riflescope uses cutting edge glass and lens coatings to ensure that it is the most accurate tactical instrument on the market. Precision multicoated optics are the distinguishing feature of the Sightmark Triple Duty riflescope line; multicoated lenses offer the clearest view for easy target acquisition in both bright and low light situations. Both waterproof and fog proof, the nitrogen filled Sightmark Triple Duty line features oversized windage, elevation and focusing adjustment knobs for easy adjustment in the field. Locking mechanisms on the windage and elevation adjustments provide an additional level of accuracy and ensure that the scope stays zeroed. The 6-25×56’s internal lit mil-dot dot reticle helps shooters to successfully make highly accurate shots over a wide range of distances.
Rifle Scope Product Features
Precision accuracy
Adjustment lock
Mil-Dot Dot Reticle
Wide field of view
1/8-Inch locking MOA
Developing Products That Work As Hard As You Do
Long hours, harsh weather, dangerous pursuits: it’s all in a day’s work. You’re devoted to protecting others so your equipment needs to work as hard as you do. Whether you’re in the line of duty, defending your home or serving as a protector of peace- you can rest assured that accuracy and quality come standard in every Sightmark product.
Our goal is to provide state-of-the-art optics and accessories to make the modern shotgun, rifle & pistol as accurate as possible. In addition, each product is designed for the core market, enabling shooters to purchase more high quality items to accessorize their firearm for various needs.
Sightmark has earned several patents and awards from industry associations and publications including Field & Stream, Optics Planet, Outdoor Life and Predator Xtreme. Numerous optics and accessories have been field tested and approved by prominent outdoor organizations such as the North American Hunting Club and the National Tactical Officers Association.
Best Sellers
Riflescopes: When you pick up a Sightmark Riflescope, what you will find is a product that has been crafted to match your pursuit. From tactical setups to a hunting scope fitted on your favorite rifle, each optic is designed for a range and reticle style to best match the conditions you’ll find in the field. Embracing this concept, Sightmark is able to provide a riflescope for every shooter.
Riflescopes
Red Dot Sights/Reflex Sights
Boresights
Digital Night Vision Riflescopes
Tactical
Mil-Spec Driven
Hunting
Field Qualified
Competition
Range Tested
Whether you’re a 3-gun competition shooter, or a dedicated hunter, laying a foundation at the shooting bench is essential, no matter the pursuit. Devoting serious time at the range provides the repetition needed to build confidence in your abilities as a marksman.
At Sightmark, our goal is to deliver confidence by creating optics and accessories that every shooter can rely on. We understand what it takes to prepare and we know that the hours spent hunched over a shooting bench at the range are meaningless unless your products do their job. From riflescopes and binoculars to night vision technology and red dots, Sightmark is committed in our pursuit of building durable, accurate optics you can trust.
About the Sightmark Brand
Sightmark is a premium supplier for weapon scopes, optics, mounting solutions, and other components used for guns like rifles and long guns. They innovate and supply their scopes and related products by choosing building materials which are long lasting and resilient. This includes the Sightmark Triple Duty 6-25×56 35mm MDD Riflescope by Sightmark. For additional shooting products, visit their site.
What You Need to Know About Rifle Optics
Rifle scopes allow you to exactly aim a rifle at various targets by lining up your eye with the target at range. They accomplish this through magnifying the target by making use of a set of lenses inside the scope. The scope’s positioning can be adjusted for the consideration of numerous environmental things like wind speed and elevation to make up for bullet drop.
The scope’s function is to help shooters understand precisely where the bullet will land based on the sight picture you are viewing via the optic as you align the scope’s crosshair or reticle with the target. A lot of modern-day rifle scopes and optics have about eleven parts which are arranged internally and externally on the scope body. These optic pieces consist of the rifle scope’s body, lenses, elevation turrets or dials, objective focus rings, and other elements. Learn about the eleven parts of rifle glass.
Rifle Glass Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Considering the optimal type of rifle glass is based around what type of shooting you plan on doing.
Info About First Focal Plane Optics
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These kinds of scopes are helpful for:
- Quick acquisition, far away kinds of shooting
- Shooting circumstances where estimations are marginal
- Experienced shooters who know their aim point “hold over” plus “lead” ratios for their firearms
- Shooters who do not mind the reticle is enlarged and takes up more visual sight room than a SFP reticle
Second Focal Plane Glass Facts
Second focal plane optics (SFP) come with the reticle behind the magnifying lens. This causes the reticle to stay at the exact same dimensions in connection with the amount of magnification being used. The outcome is that the reticle measurements alter based on the zoom applied to shoot over greater distances because the markings present various increments which change with the zoom level. In the FFP example with the SFP glass, the 5x “zoom” one hundred yard tick measurement would be 1/5th of the non “zoom” tick measurement. These particular sorts of scopes work for:
- Far away styles of shooting where shooters have additional time to make ballistic estimations
- Shooting where most of the shots take place within much shorter ranges and spaces
- Shooters who choose a clearer optic sight picture without space taken up by the larger sized FFP reticle
Glass Magnification
The amount of zoom a scope provides is figured out by the size, thickness, and curvatures of the lenses inside of the rifle scope. The magnification 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 and the objective lens is 32mm. The zoom of this kind of optic can not fluctuate since it is a fixed power optic.
Adjustable Power Lens Rifle Glass Facts
Variable power rifle scopes have adjustable power. These types of scopes will note the zoom degree in a format like 2-10×32. These numbers suggest the zoom of the scope can be set in between 2x and 10x power. This also includes the powers in-between 2 and 10. The power shift is achieved utilizing the power ring component of the scope near the rear of the scope by the eye bell piece.
The Power Level and Range Correlation of Glass
Here are some advised scope powers and the distances where they may be effectively used. Highly magnified glass will not be as useful as lower magnification level glass due to the fact that too much zoom can be a negative aspect depending on your shooting distance. The same idea applies to extended ranges where the shooter needs to have enough power to see precisely where to properly aim the rifle.
Scope Lens Covering
All state-of-the-art rifle scope and optic lenses are covered. Lens finish is an essential aspect of a shooting system when purchasing high end rifle optics and scope setups.
HD Versus ED Lens Coatings
Some optic producers also use “HD” or high-definition lens finishings which take advantage of various procedures, chemicals, polarizations, and elements to enhance separate color ranges and viewable target definition through lenses. This HD finish is commonly used with more costly, high density lens glass which brings down light’s capability to refract through the lens glass. Some scope suppliers use “HD” to describe “ED” suggesting extra-low dispersion glass. ED deals with how colors are represented on the chromatic spectrum and the chromatic difference or aberration which is also called color distortion or fringing. Chromatic aberration can be visible around objects with hard edges and outlines as light hits the item from particular angles.
Single Finishing Versus Multi-Coating for Glass
Various optic lenses can likewise have various coverings used to them. All lenses usually have at least some type of treatment or covering used to them prior to being used in a rifle scope or optic.
This lens treatment can safeguard the lens from scratches while lowering glare and other less beneficial things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends on the scope manufacturer and how much you paid for it.
Some scope makers also make it a point to define if their optic lenses are coated or “multi” covered. Being “much better” depends on the maker’s lens treatment innovation and the quality of materials used in developing the rifle scope.
Rifle Optic Lens Anti-water Coating
Water on an optical lens doesn’t support preserving a clear sight picture through a scope whatsoever. Numerous top of the line or high-end scope makers will coat their lenses with a hydrophilic or hydrophobic finish. The Steiner Optics Nano-Protection is a fine example of this sort of treatment. It deals with the surface area of the Steiner scope lens so the water particles can not bind to it or produce surface tension. The outcome is that the water beads sheet off of the scope to maintain a clear, water free sight picture.
Glass Installing Options
Mounting approaches for scopes can be found in a couple of options. There are the standard scope rings which are individually mounted to the optic and one-piece mounts which cradle the scope. These different kinds of mounts also normally are made in quick release variations which use toss levers which permit rifle shooters to quickly install and remove the scopes.
Hex Key Scope Ring Mounts
Standard, clamp design mounting scope rings use hex head screws to fix to the flattop style Picatinny scope mount rails on the tops of rifles. These forms of scope mounts use two separate rings to support the optic, and are made from 7075 T6 billet aluminum which are made for far away accuracy shooting. This type of scope mount is good for rifles which require a long lasting, unfailing mount which will not shift regardless of just how much the scope is moved or abuse the rifle takes. These are the style of mounts you want for a faithful optics setup on a reach out and touch someone hunting or hard target interdiction rifle that will hardly ever need to be modified or adjusted. Blue 242 Loctite threadlocker can additionally be used on screws to prevent the hex screws from backing out after they are installed securely in position. An example of these mounting rings are the 30mm type from Vortex Optics. The set generally costs around $200 USD
Quick-Release Cantilever Optic Ring Mounts
These types of quick-release rifle scope mounts can be used to quickly detach a scope from a rifle and reattach it to a different rifle. If they all use a similar style mount, a number of scopes can also be switched out. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach tightly to a flat top type Picatinny rail. This permits the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while keeping accuracy. These kinds of mounts come in convenient for shooting platforms which are moved a lot, to remove the scope glass from the rifle for protection, or for optics which are utilized in between a number of rifles. An example of this mount type is the 30mm mount designed by the Vortex Optics manufacturer. It normally costs around $250 USD
Sealing and Gas Purging for Rifle Optic Tubes
Wetness inside your rifle scope can mess up a day of shooting and your pricey optic by triggering fogging and producing residue inside of the scope tube. Most scopes prevent moisture from getting in the scope tube with a system of sealing O-rings which are water resistant.
Info Around Glass Tube Gas Purging
Another element of avoiding the accumulation of wetness inside of the rifle optic tube is filling the tube with a gas like nitrogen. Considering that this space is already occupied by the gas, the optic is less influenced by temp shifts and pressure variations from the outdoor environment which may possibly enable water vapor to seep in around the seals to fill the void which would otherwise be there. These are good qualities of a decent rifle scope to look for.
