Description
Rifle Scope Product Details
4 x 20 Rifle Scope (#RF0420M)
4 X 20 Rifle Scope For 22 Caliber Rifles and Air Guns
Rifle Scope Product Features
Mounting brackets included as shown
A very good quality scope, fully adjustable
Plastic lens covers
About the Gray Eagle Traders Brand
Gray Eagle Traders is a premium producer for firearm scopes, optics, mounts, and other accessories used for firearms like rifles and long guns. They create and build their products working with building materials which are durable and long lasting. This includes the 4 x 20 Rifle Scope (#RF0420M) by Gray Eagle Traders. For additional shooting products, visit their site.
Info About Rifle Optics
Rifle scopes permit you to precisely aim a rifle at various targets by lining up your eye with the target over a range. They do this through magnification by making use of a series of lenses inside the scope. The scope’s alignment can be dialed in to account for numerous environmental considerations like wind speed and elevation increases to account for bullet drop.
The scope’s function is to understand exactly where the bullet will land based on the sight picture you are seeing with the optic as you align the scope’s crosshair or reticle with the intended point of impact. Most modern-day rifle optics have about eleven parts which are arranged internally and outside of the scope. These optic pieces consist of the rifle scope’s body, lenses, windage and elevation turrets, objective focus rings, and other elements. Learn about the eleven parts of glass.
Rifle Scope Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Picking the perfect type of rifle glass is based around what type of shooting you plan to do.
First Focal Plane Optics
First focal plane glass (FFP) come with the reticle before the zoom lens. This induces the reticle to increase in size based on the extent of magnification being used. The result is that the reticle measurements are the same at the magnified distance as they are at the non magnified distance. As an example, one tick on a mil-dot reticle at 100 yards without “zoom” is still the exact same tick at one hundred yards with 5x “zoom”. These types of scopes are practical for:
- Quick acquisition, far away types of shooting
- Shooting situations where estimations are very little
- Experienced shooters who recognize their target “hold over” as well as “lead” correlations for their rifles
- Shooters who do not mind the reticle is enlarged and requires more visual eyesight area than a SFP reticle
Second Focal Plane Glass
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 kinds of shooting where shooters have additional time to make ballistic computations
- Shooting where most shots happen within much shorter ranges and proximities
- Shooters who desire a clearer optic sight picture without area used up by the larger sized FFP reticle
Zoom for Rifle Scopes
The measure of scope zoom you need on your glass is based on the sort of shooting you like to do. Practically every type of rifle scope supplies some amount of zoom. The level of zoom a scope delivers 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 opic. This indicates what the shooter is looking at through the scope is magnified times the power aspect of what can normally be seen by human eyes.
About Fixed Single Power Lens Rifle Scopes
A single power rifle scope and optic will have 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 zoom of this type of scope can not fluctuate given that it is fixed.
Info on Adjustable Power Lens Rifle Glass
Variable power rifle scopes have adjustable power. These types of scopes will list the magnification amount in a configuration such as 2-10×32. These numbers indicate the magnification of the scope could be set between 2x and 10x power. This additionally involves the powers in-between 2 and 10. The power shift is accomplished by applying the power ring component of the scope near the rear of the scope by the eye bell piece.
Power and Range Correlations
Here are some advised scope power settings and the distances where they could be successfully used. Bear in mind that higher power optics and scopes will not be as effective as lower powered glass since excessive zoom can be a detractor. The exact same concept applies to extended ranges where the shooter needs enough power to see precisely where to best aim the rifle at the target.
Info on Glass Lens Finish
All modern-day rifle scope and optic lenses are coated. There are various types and qualities of glass lens coverings. Lens coating can be an essential aspect of a rifle’s setup when looking into luxury rifle optics and targeting units. The lenses are one of the most significant components of the glass considering they are what your eye looks through while sighting a rifle in on the target. The coating on the lenses safeguards the lens surface area and also improves anti glare capabilities from excess sunshine and color recognition.
HD Versus ED Lenses
Some optic makers will also use “HD” or high-definition lens coverings that employ various processes, chemical applications, polarizations, and aspects to enhance different color ranges and viewable definition through the lens. This HD covering is commonly used with higher density lens glass which brings down light’s opportunity to refract through the lens glass. Some scope suppliers use “HD” to refer to “ED” suggesting extra-low dispersion glass. ED handles how colors are presented on the chromatic spectrum and the chromatic deviance or aberration which is similarly called color distortion or fringing. Chromatic aberration is often noticeable over objects with hard shapes as light hits the object from certain angles.
Optic Lens Single Finishing Versus Multi-Coating
Different scope lenses can also have different coatings 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. Because the lens isn’t simply 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 it will be optimally usable in numerous kinds of environments, degrees of light (full light VS shade), and other shooting conditions.
Single layered lenses have a treatment applied to them which is generally a protective and boosting multi-purpose treatment. This lens treatment can preserve the lens from scratches while lowering glare and other less helpful things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends on the scope manufacturer and just how much you spent for it. Both the manufacturer and amount are signs of the lens quality.
Some scope producers also make it a point to specify if their optic lenses are covered or “multi” covered. This suggests the lens has had numerous treatments applied to the surfaces of the glass. If a lens gets several treatments, it can establish that a maker is taking multiple actions to fight different environmental aspects like an anti-glare finish, a scratch resistant anti-abrasion finish, followed by a hydrophilic finish. This additionally does not always imply the multi-coated lens is better than a single layered lens. Being “much better” is dependent on the producer’s lens treatment innovation and the quality of components used in constructing the rifle glass.
What to Know About Hydrophobic Coating
Water on a lens does not assist with preserving a clear sight picture through a scope at all. Lots of top of the line and military grade scope makers will coat their lenses with a hydrophobic or hydrophilic covering.
Glass Installation Alternatives
Installing solutions for scopes are available in a few choices. There are the standard scope rings which are individually installed to the optic and one-piece scope mounts which cradle the scope. These different kinds of mounts also generally can be found in quick release variations which use throw levers which permit rifle operators to rapidly install and remove the scope.
Hex Key Glass Ring Mounts
Standard, clamp design mounting scope rings use hex head screws to mount to the flattop design Picatinny scope mount rails on rifles. These types of scope mounts use two different rings to support the optic, and are often made from 7075 T6 billet aluminum which are developed for long distance accuracy shooting. This type of scope mount is great for rifles which need a durable, sound mount which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Glass Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to rapidly connect and remove a scope from a rifle. A wide range of scopes can also be switched 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 connect securely to a flat top design Picatinny rail. This permits the scope to be sighted in while on the rifle, removed from the rifle, and remounted back on the rifle while preserving the original sighting settings. These types of mounts are useful and convenient for shooting platforms which are moved a lot, to remove the optic from the rifle for protection, or for scopes which are utilized between multiple rifles. An example of this mount style is the 30mm mount designed by the Vortex Optics brand. It generally costs around $250 USD
Sealing and Gas Purging for Glass Tubes
Wetness inside your rifle optic can ruin a day of shooting and your expensive optic by triggering fogging and creating residue inside of the scope tube. Many scopes prevent moisture from getting in the scope tube with a system of sealing O-rings which are water resistant.
Gas Purged Optic Tubes
Another element of avoiding the buildup of moisture within the rifle scope’s tube is filling the tube with a gas like nitrogen. Given that this area is already taken up by the gas, the scope is less altered by temperature alterations and pressure distinctions from the outdoor environment which might potentially allow water vapor to leak in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a decent rifle scope to seek out.
