Last update on February 8, 2023 // Source: Amazon API
Rifle Scope Product Details
STEINER OPTICS 8719-G2B M7Xi 4-28×56 G2B Mil-Dot
Based on the outstanding success of the M5Xi – used today by Special Forces around the globe – Steiner sets a new benchmark with the ultimate long-range riflescope. M7Xi 4-28×56 with a 7x zoom and an impressive field of view (1. 42-9 m at 100 m). The new 7x zoom gives the operator more flexibility and a higher resolution for all distances while the large field of view and the outstanding optical quality create a perfect overview of the surroundings at all times.
Rifle Scope Product Features
Short overall length of the scope creates more rail space for clip-on devices
Low profile turrets provide outstanding situational awareness and additional mounting options for add-ons and accessories.
Enhanced legendary Steiner ruggedness The new Steiner M7Xi IFS inherited and enhanced the legendary Steiner ruggedness. The M7Xi IFS is waterproof up to 20 m (66Feet) and the operating temperature range is -40 to +64. It can withstand up to 900Gs.
About the STEINER OPTICS Company
STEINER OPTICS is a premium company for firearm scopes, optics, mounting solutions, and other add-ons used for firearms like rifles and long guns. They create and make their products making the most of building materials which are long lasting and durable. This includes the STEINER OPTICS 8719-G2B M7Xi 4-28×56 G2B Mil-Dot by STEINER OPTICS. For more shooting items, visit their site.
What You Need to Know About Optics
Rifle scopes enable you to exactly aim a rifle at different targets by lining up your eye with the target at range. They accomplish this through zoom by making use of a set of lenses inside the scope. The scope’s alignment can be adapted for the consideration of different ecological things like wind and elevation increases or decreases to account for bullet drop.
The scope’s purpose is to understand exactly where the bullet will land based on the sight picture you are viewing with the scope as you align the scope’s crosshair or reticle with the intended target. The majority of modern-day rifle scopes and optics have about eleven parts which are located internally and externally on the scope. These parts consist of the rifle scope’s body, lenses, modification turrets or dials, focus rings, and other components. See all eleven parts of a rifle optical system.
Rifle Glass Types
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The sort of focal plane an optic has identifies where the reticle or crosshair lies in connection with the optic’s zoom. It literally suggests the reticle is located behind or before the magnification lens of the scope. Selecting the most beneficial style of rifle optic depends upon what sort of shooting or hunting you plan on undertaking.
About First Focal Plane Glass
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These kinds of scopes are helpful for:
- Quick acquisition, long distance types of shooting
- Shooting scenarios where calculations are minimal
- Experienced shooters who have an idea for their aim point “hold over” and “lead” correlations for their firearms
- Shooters who do not mind the reticle is enlarged and requires more visual eyesight area than a SFP reticle
Second Focal Plane Optic Facts
Second focal plane optics (SFP) include the reticle to the rear of the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick.
- Far away styles of shooting where shooters have extra time to make ballistic computations
- Shooting where most of the shots take place within much shorter spaces and ranges
- Shooters who prefer a clearer optic sight picture with less room taken up by the enlarged FFP reticle
Rifle Scope Magnification
The extent of scope zoom you need on your scope depends on the kind of shooting you would like to do. Almost every style of rifle glass gives some degree of zoom. The amount of zoom a scope provides is established by the diameter, density, and curvatures of the lenses within the rifle optic. The magnifying level of the optic is the “power” of the glass. This implies what the shooter is looking at through the scope is magnified times the power factor of what can usually be seen by human eyes.
Single Power Lens Rifle Glass Details
A single power rifle optic will have a magnification number designator like 4×32. This implies the zoom power of the scope is 4x power while the objective lens is 32mm. The zoom of this type of optic can not change given that it is a fixed power optic.
Adjustable Power Lens Optic Facts
Variable power rifle scopes have adjustable power. It will list the zoom level in a format like 2-10×32. These numbers suggest the zoom of the scope could be adjusted in between 2x and 10x power. This also utilizes the powers in-between 2 and 10. The power adjustment is achieved by operating the power ring component of the scope near the back of the scope by the eye bell.
Power Levels and Range
Here are some recommended scope powers and the ranges where they could be successfully used. High power glass will not be as useful as lower powered optics because too much zoom can be a bad thing. The same applies to extended distances where the shooter needs to have increased power to see where to properly aim the rifle.
Scope Lens Finish
All modern rifle scope lenses are coated. There are various types and qualities of coverings. When thinking about luxury rifle optics and scope units, Lens finishing can be a vital element of defining the rifle’s capability. The glass lenses are among the most critical parts of the glass given that they are what your eye looks through while sighting a rifle in on the target. The covering on the lenses safeguards the lens surface area as well as helps with anti glare capabilities from excess sunrays and color perception.
Details on Lens Coatings – HD Versus ED
Some scope suppliers additionally use “HD” or high-def glass coatings that apply different procedures, aspects, polarizations, and chemicals to draw out various colors and viewable definition through lenses. This high-definition covering is typically used with higher density lens glass which brings down light’s potential to refract through the lens glass. Some scope makers use “HD” to refer to “ED” meaning extra-low dispersion glass. ED handles how certain colors are presented on the chromatic spectrum and the chromatic difference or aberration which is similarly called color distortion or fringing. Chromatic aberration is often visible over things with defined shapes as light hits the object from specific angles.
Single Scope Lens Covering Versus Multi-Coating
Different scope lenses can even have various finishes applied to them. All lenses usually have at least some type of treatment or coating applied to them prior to being used in a rifle scope or optic assembly. Due to the fact that the lens isn’t just a raw piece of glass, they require performance enhancing coatings. It is part of the finely tuned optic. It requires a coating to be applied to it so that the lens will be optimally usable in many types of environments, degrees of sunshine (full light VS shaded), and other shooting conditions.
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 coated lens depends on the scope maker and how much you paid for it.
Some scope makers similarly make it a point to specify if their optic lenses are layered or “multi” coated. Being “much better” depends on the producer’s lens treatment technology and the quality of materials used in constructing the rifle scope.
Hydrophobic Lens Coverings
Water on a lens does not assist with preserving a clear sight picture through a scope at all. Many top of the line and high-end scope makers will coat their lenses with a hydrophilic or hydrophobic finish which is water repellent.
Options for Mounting Rifle Scopes on Firearms
Mounting options for scopes come in a few options. There are the basic scope rings which are individually installed to the optic and one-piece mounts which cradle the scope. These various kinds of mounts also normally are made in quick release variations which use throw levers which allow rifle shooters to quickly mount and dismount the scopes.
Glass Mounts with Hex Key Rings
Standard, clamp-on type mounting scope rings use hex head screws to fix to the flattop design Picatinny scope mount rails on the tops of rifles. These types of scope mounts use double detached rings to support the optic, and are normally constructed from 7075 T6 billet aluminum or similar materials which are manufactured for long distance accuracy shooting. This kind of scope mount is ideal for rifles which need a durable, unfailing mount which will not shift regardless of how much the scope is moved about or jarring the rifle takes. These are the design of mounts you should get for a faithful optics system on a far away hunting or sniper competition long gun which will pretty much never need to be changed or adjusted. Blue 242 Loctite threadlocker can additionally be used on the mount’s screws to keep the hex screw threads from wiggling out after they are mounted tightly in place. An example of these mounting rings are the 30mm style from the Vortex Optics company. The set generally costs around $200 USD
Quick-Release Cantilever Rifle Scope Rings
These types of quick-release rifle scope mounts can be used to rapidly detach a scope and connect it to a different rifle. Several scopes can also be swapped out if they all use a compatible design mount. These types of mounts come in handy for rifle platforms which are transferred a lot, to remove the optic from the rifle for protection, or for optics which are used between numerous rifles or are situationally focused.
Rifle Optic Tube Sealing and Gas Purging
Wetness inside your rifle scope can ruin a day of shooting and your expensive optic by triggering fogging and developing residue inside of the scope tube. Many scopes prevent wetness from getting in the scope tube with a system of sealing O-rings which are waterproof.
Gas Purged Rifle Optic Tubes
Another component of avoiding the buildup of moisture within the rifle optic tube is filling the tube with a gas like nitrogen. Since this space is currently occupied by the gas, the scope is less impacted by temperature alterations and pressure variations from the outside environment which could possibly enable water vapor to leak in around the seals to fill the void which would otherwise be there. These are good qualities of a good rifle scope to seek out.