Description
Last update on February 8, 2023 // Source: Amazon API
Rifle Scope Product Details
STEINER OPTICS 8720-T3 M7Xi 4-28×56 Tremor 3 (Coyote Brown)
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.
Precise Wind age/Elevation Adjustment is easy and immediate for repeated accuracy, with tactile click-by-click feedback you can hear and feel and second rotation indicator.
One-Piece 34mm Tube Increases strength and reliability and provides greater elevation and wind age adjustments for longer ranges.
About the STEINER OPTICS Manufacturer
STEINER OPTICS is a premium supplier for long gun scopes, optics, mounts, and other add-ons used for firearms like rifles and long guns. They style and supply their scopes and related products making the most of materials which are long lasting and resilient. This includes the STEINER OPTICS 8720-T3 M7Xi 4-28×56 Tremor 3 (Coyote Brown) by STEINER OPTICS. For additional shooting products, visit their site.
Facts About Scopes
Rifle scopes permit you to specifically align a rifle at various targets by lining up your eye with the target over a distance. They do this through magnification by using a series of lenses inside the scope. The scope’s alignment can be adapted to account for many environmental elements like wind and elevation increases to account for bullet drop.
The scope’s function is to help shooters understand exactly where the bullet will land based on the sight picture you are seeing via the optic as you line up the scope’s crosshair or reticle with the intended target. Most modern rifle scopes and optics have around eleven parts which are found inside and on the exterior of the optic. These optic pieces include the rifle scope’s body, lenses, windage dials or turrets, focus rings, and other parts. Learn about the eleven parts of rifle glass.
The Types of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Selecting the finest type of rifle optic is based on what type of shooting you plan to do.
First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These styles of scopes are beneficial for:
- Quick acquisition, far away kinds of shooting
- Shooting circumstances where calculations are marginal
- Experienced shooters who recognize their aim point “hold over” plus “lead” correlations for their long guns
- Shooters who do not mind the reticle is bigger and occupies more visual sight area than a SFP reticle
About Second Focal Plane Glass
Second focal plane optics (SFP) feature the reticle behind the magnifying lens. This triggers the reticle to remain at the very same dimensions in relation to the level of magnification being used. The end result is that the reticle measurements adjust based on the zoom used to shoot over longer ranges considering the reticle measurements present distinct increments which can vary with the magnification level. In the FFP illustration with the SFP optic, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement. These varieties of scopes work for:
- Long distance kinds of shooting where shooters have extra time to make ballistic calculations
- Shooting where most of the shots occur within much shorter ranges and spaces
- Shooters who like a clearer optic sight picture with less space used up by the enlarged FFP reticle
Ins and Outs of Scope Zoom
The amount of zoom a scope offers 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.
Fixed Single Power Lens Rifle Glass
A single power rifle optic and scope uses a magnification number designator like 4×32. This means the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this type of scope can not adjust because it is a fixed power scope.
Adjustable Power Lens Rifle Optic Details
Variable power rifle scopes use variable power levels. The power modification is handled by the power ring part of the scope near the back of the scope by the eye bell.
Glass Power Level and Range Correlation
Here are some suggested scope power settings and the distances where they can be effectively used. Keep in mind that higher power optics and scopes will not be as effective as lower powered optics and scopes because too much zoom can be a detractor. The exact same idea goes for extended distances where the shooter needs enough power to see exactly where to properly aim the rifle at the target.
Info on Rifle Optic Lens Coverings
All modern-day rifle scope and optic lenses are coated. Lens coating can be an important element of a shooting platform when buying high end rifle optics and scope equipment.
About Lens Coatings – HD Versus ED
Some rifle glass manufacturers even use “HD” or high-def glass coatings that apply various processes, chemicals, polarizations, and elements to draw out a wide range of colors and viewable definition through the lens. This high-def coating is commonly used with higher density lens glass which brings down light’s potential to refract through the lens glass. Some scope manufacturers use “HD” to refer to “ED” implying extra-low dispersion glass. ED deals with how colors are represented on the chromatic spectrum and the chromatic aberration which is also called color distortion or fringing. Chromatic aberration is often noticeable over items with hard edges and shapes as light hits the object from certain angles.
Info on Single Covering Versus Multi-Coating
Various optic lenses can also have different coverings applied to them. All lenses typically have at least some kind of treatment or covering applied to them prior to being used in a rifle scope or optic assembly. This is because the lens isn’t simply a raw piece of glass. It is part of the finely tuned optic. It requires a coating to be applied to it so that the lens will be efficiently usable in numerous kinds of environments, degrees of light (full VS shade), and other shooting conditions.
Single coated lenses have a treatment applied to them which is usually a protective and improving multi-purpose treatment. This lens treatment can safeguard the lens from scratches while lowering 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 on the scope maker and just how much you spent on it. Both the make and cost are signs of the lens quality.
Some scope manufacturers likewise make it a point to define if their optic lenses are coated or “multi” covered. This implies the lens has several treatments applied to the surfaces of the glass. If a lens gets numerous treatments, it can indicate that a company is taking several actions to fight different environmental factors like an anti-glare covering, a scratch resistant anti-abrasion finish, followed by a hydrophilic finish. This also does not always imply the multi-coated lens will perform better than a single covered lens. Being “much better” depends upon the maker’s lens treatment technology and the quality of glass used in creating the rifle optic.
Hydrophobic Lens Coatings
Water on a scope’s lens doesn’t help with maintaining a clear sight picture through an optic at all. Many top of the line and premium optic producers will coat their lenses with a hydrophilic or hydrophobic finishing. The Steiner Optics Nano-Protection is a fine example of this sort of treatment. It provides protection for the surface area of the Steiner glass lens so the H2O molecules can not bind to it or create surface tension. The result is that the water beads slide off of the scope to maintain a clear, water free sight picture.
Options for Mounting Rifle Scopes on Long Guns
Installing options for scopes come in a couple of options. There are the basic scope rings which are separately mounted to the optic and one-piece mounts which cradle the scope. These different types of mounts also usually can be found in quick release variations which use manual levers which permit rifle shooters to quickly install and remove the optics.
Rifle Scope Mounts with Hex Key Rings
Standard, clamp style mounting optic rings use hex head screws to position to the flattop style Picatinny scope mount rails on the tops of rifles. These kinds of scope mounts use a pair of independent rings to support the scope, and are made from 7075 T6 billet aluminum which are designed for long distance precision shooting. This form of scope mount is effective for rifles which need a long lasting, rock solid mount which will not change regardless of how much the scope is moved about or jarring the rifle takes. These are the type of mounts you want for a faithful optics setup on a far away scouting or competition firearm that will hardly ever need to be altered or adjusted. Blue 242 Loctite threadlocker can also be used on the mount screws to protect against the hex screws from backing out after they are mounted safely in place. An example of these rings are the 30mm type from the Vortex Optics brand. The set usually costs around $200 USD
Optic Mounts with Quick-Release Cantilever Rings
These kinds of quick-release rifle scope mounts can be used to rapidly take off a scope from a rifle and reattach it to a different rifle. A wide range of scopes can also be swapped out if they all use a complementary designed mount. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten securely to a flat top design Picatinny rail. This allows the scope to be sighted in while on the rifle, removed from the rifle, and remounted back on the rifle while maintaining the original sighting settings. These types of mounts come in handy for rifles which are shipped a lot, to remove the glass from the rifle for protection, or for optics which are adopted in between a number of rifles. An example of this mount style is the 30mm mount designed by the Vortex Optics manufacturer. It generally costs around $250 USD
What to Know About Optic Tube Sealing and Gas Purging
Wetness inside your rifle scope can destroy a day of shooting and your expensive optic by triggering fogging and developing residue inside of the scope tube. A lot of scopes avoid wetness from getting in the scope tube with a system of sealing O-rings which are waterproof.
What to Know About Rifle Glass Tube Gas Purging
Another element of preventing the buildup of moisture within the rifle optic tube is filling the tube with a gas like nitrogen. Considering that this area is already occupied by the gas, the scope is less affected by temperature level alterations and pressure variations from the outdoor environment which may possibly allow water vapor to leak 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.
