Description
Last update on July 4, 2022 // Source: Amazon API
Rifle Scope Product Details
Leupold Mark 8 CQBSS 3.5-25x56mm Riflescope
Rifle Scope Product Features
Leupold Model #170813 – Mark 8 CQBSS 3. 5-25x56mm with Illume. Front Focal Tremor 3 reticle and Matte finish
100% Waterproof, fog proof, & shockproof
M5B1 Turrets – Auto-locking Pinch and Turn Adjustments unlock when you grip it (1/10 Mil per click – 10 Mil per revolution)
Front Focal Plane (FFP) – The reticle magnifies along with the image, so you can estimate range at all magnification settings
Lockable Fast-Focused Eyepiece – Features Leopold’s lockable fast-focus eyepiece for a secure reticle focus
Diamond Coat 2 – Ion-assist lens coating for higher light transmission and the greatest level of abrasion resistance
8: 1 Zoom Ratio – Offers an incredible field of view at lower magnifications, and excellent long-range target discrimination at higher powers
Designed, machined, and assembled in the USA
Mark 8 CQBSS 3.5-25x56mm
Magnification Range: 3.5x-25
Weight: 37 oz.
Length: 16 in.
Maintube Diameter: 35mm
Eye Relief (in) – Low: 3.7
Eye Relief (in) – High: 3.3
Linear FOV (ft/100 yd) – Low: 32.5
Linear FOV (ft/100 yd) – High: 4.4
Leupold Mark 8
Relentless Performance
These are the riflescopes at the tip of the spear, first focal plane reticles, maximum resolution and field of view, 8:1 zoom range, and the image brightness and contrast necessary to triumph in the worst conditions. The Mark 8 3.5-25×56 M5B2 Illuminated gives you seven brightness settings and auto-locking pinch and turn dials.
Lightweight, rugged performance
Unparalleled low light performance
Designed, machined, & assembled in the USA
Twilight Max Light Management System
See a more vivid, bright, and clear target image in a wider variation of low and bright lighting conditions. The combination premium edge-to-edge lens clarity, full visible-spectrum lens coatings and glare management provides an extra 20 minutes of shooting light.
Twilight Max HD Light Management System
M5B2 Adjustments
Designed, Machined, & Assembled in the USA
Rugged Reliability
Proprietary gas blend and seals are tested to a 33-foot depth and a multitude of pressure changes.
Every Leupold riflescope is designed to survive a minimum of 5,000 impacts on the Punisher, Leupold’s recoil simulation machine. The force of each impact is 3x the recoil of a .308 rifle.
All Leupold riflescopes are tested to perform from -40F to 160F.
VX-3i LRP Mark 5HD Mark 6 Mark 8
Light Management System Twilight Max Twilight Max HD Twilight Max Twilight Max
Maintube Size 30mm 35mm 34mm 34mm, 35mm
Zoom Ratio 3:1 5:1 6:1 8:1
HD Glass No Yes No No
About the Leupold Manufacturer
Leupold is a premium maker for weapon scopes, optics, mounting solutions, and other accessories used for guns like rifles and long guns. They create and make their mounts and related products using building materials which are durable and long lasting. This includes the Leupold Mark 8 CQBSS 3.5-25x56mm Riflescope by Leupold. For more shooting goods, visit their site.
Optic Information
Rifle scopes permit you to precisely align a rifle at various targets by aligning your eye with the target at range. They do this through zoom by utilizing a set of lenses inside the scope. The scope’s positioning can be adjusted for consideration of varied natural considerations 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 hit based on the sight picture you are viewing with the scope as you align the scope’s crosshair or reticle with the intended point of impact. Many contemporary rifle optics have around 11 parts which are located inside and outside of the optic. These parts consist of the rifle scope’s body, lenses, elevation turrets or dials, focus rings, and other components. Learn about the eleven parts of rifle glass.
Rifle Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Choosing the finest type of rifle scope is based around what type of shooting you plan to do.
Info on First Focal Plane Glass
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These styles of scopes are helpful for:
- Quick acquisition, far away kinds of shooting
- Shooting situations where estimations are low
- Experienced shooters who recognize their aim point “hold over” and “lead” ratios for their long guns
- Shooters who don’t mind the reticle is enlarged and takes up more visual eyesight space than a SFP reticle
Second Focal Plane Scope Facts
Second focal plane scopes (SFP) come with the reticle to the rear of the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Far away types of shooting where shooters have additional time to make ballistic estimations
- Shooting where most of the shots happen within much shorter proximities and ranges
- Shooters who choose a clearer optic sight picture without room used up by the enlarged FFP reticle
Rifle Glass Magnification
The amount of magnification a scope provides is identified by the diameter, thickness, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
Single Power Lens Rifle Optic Info
A single power rifle scope or optic will have a zoom number designator like 4×32. This suggests the magnification 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.
Info About Adjustable Power Lens Scopes
Variable power rifle scopes have adjustable power. These types of scopes will list the magnification degree in a format like 2-10×32. These numbers imply the magnification of the scope can be set in between 2x and 10x power. This also involves the powers in-between 2 and 10. The power shift is achieved by applying the power ring part of the scope near the back of the scope by the eye bell piece.
Power Levels and Range
Here are some recommended scope power settings and the ranges where they can be successfully used. High power rifle scope glass will not be as useful as lower powered scopes because too much zoom can be a negative aspect depending on your shooting distance. The exact same idea relates to extended ranges where the shooter needs enough power to see precisely where to best aim the rifle at the target.
Info on Scope Lens Coating
All top teir rifle scope lenses are covered. Lens finishing can be a vital aspect of a shooting system when considering high end rifle optics and scope systems.
About Lens Coatings – HD Versus ED
Some optic companies will also use “HD” or high-def lens coatings which make the most of various procedures, elements, polarizations, and chemicals to extract separate color ranges and viewable target visibility through lenses. This HD coating is typically used with increased density lens glass which drops light’s potential to refract by means of the lens glass. Some scope manufacturers use “HD” to refer to “ED” signifying extra-low dispersion glass. ED deals with how certain colors are represented on the chroma spectrum and the chromatic difference or aberration which is similarly called color distortion or fringing. Chromatic aberration can be visible over things with well defined shapes as light hits the item from certain angles.
Glass Lens Single Finish Versus Multi-Coating
Various optic lenses can also have different finishings applied to them. All lenses typically have at least some type of treatment or finishing applied to them prior to being used in a rifle scope or optic.
Single coated lenses have a treatment applied to them which is typically a protective and boosting multi-purpose treatment. This lens treatment can protect the lens from scratches while reducing glare and other less advantageous things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends upon the scope manufacturer and just how much you paid for it. The scope’s maker and cost are indicators of the lens quality.
Some scope makers also make it a point to define if their optic lenses are layered or “multi” coated. Being “much better” depends on the maker’s lens treatment technology and the quality of materials used in constructing the rifle scope.
Hydrophobic Finishing for Rifle Optics
Water on an optical lens does not assist with preserving a clear sight picture through a scope in any way. Lots of top of the line and premium scope makers will coat their lenses with a hydrophobic or hydrophilic covering. The Steiner Optics Nano-Protection is a good example of this type of treatment. It provides protection for the surface of the Steiner scope lens so the H2O molecules can not bind to it or develop surface tension. The result is that the water beads roll off of the scope to maintain a clear, water free sight picture.
Choices for Mounting Glass on Firearms
Mounting options for scopes come in a couple of options. There are the basic scope rings which are separately mounted to the scope and one-piece mounts which cradle the scope. These various types of mounts also generally come in quick release variations which use throw levers which permit rifle operators to rapidly mount and dismount the scopes.
Scope Mounting Solutions with Hex Key Rings
Standard, clamp-on type mounting scope rings use hex head screws to install to the flattop style Picatinny scope mounting rails on rifles. These types of scope mounts use a pair of independent rings to support the optic, and are normally made from 7075 T6 billet aluminum or similar materials which are developed for far away accuracy shooting. This kind of scope mount is good for rifles which require a long lasting, rock solid mount which will not shift regardless of just how much the scope is moved or jarring the rifle takes. These are the design of mounts you should get for a specialized scope setup on a far away hunting or competition long gun that will almost never need to be changed or adjusted. Blue 242 Loctite threadlocker can additionally be used on the scope mount’s screws to stop the hex screw threads from wiggling out after they are mounted safely in place. An example of these rings are the 30mm style from Vortex Optics. The set usually costs around $200 USD
Quick-Release Cantilever Rifle Glass Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to rapidly remove a scope from a rifle and reattach it to a different rifle. Multiple scopes can also be swapped out if they all use a similar style mount. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach securely to a flat top style Picatinny rail. This allows the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while maintaining the original sighting settings. These types of mounts are useful and practical for rifles which are transported a lot, to remove the optic from the rifle for protection, or for optics which are adopted in between numerous rifles. An example of this mount style is the 30mm mount from the Vortex Optics manufacturer. It usually costs around $250 USD
Rifle Scope Tube Sealing and Gas Purging
Moisture inside your rifle scope can destroy a day of shooting and your expensive optic by triggering fogging and creating residue inside of the scope tube. The majority of scopes avoid moisture from getting in the scope tube with a system of sealing O-rings which are waterproof.
Gas Purged Optic Tubes
Another part of avoiding the accumulation of moisture within the rifle optic’s tube is filling the tube with a gas like nitrogen. Because this area is currently occupied by the gas, the glass is less impacted by temp alterations and pressure differences from the external environment which may possibly allow 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.
