Last update on May 31, 2023 // Source: Amazon API
Rifle Scope Product Details
4X15-SCOPE 4×15 Riflex 40mm with Mount
This gorgeous 4×15 rifle scope with mount has the finest details and highest quality you will find anywhere! 4×15 rifle scope with mount is truly remarkable. Product details: ” condition: brand new
Rifle Scope Product Features
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About the Rtek Brand
Rtek is a premium supplier for firearm scopes, optics, mounting solutions, and other components used for guns like rifles and long guns. They style and manufacture their mounts, scopes, and related products using elements which are durable and long lasting. This includes the 4X15-SCOPE 4×15 Riflex 40mm with Mount by Rtek. For additional shooting products, visit their site.
About Rifle Optics
Rifle scopes allow you to precisely aim a rifle at different targets by lining up your eye with the target over a distance. They do this through zoom by employing a series of lenses within the scope. The scope’s alignment can be dialed in for consideration of varied natural elements like wind speed and elevation increases to make up for bullet drop.
The scope’s function is to help shooters understand exactly where the bullet will land based upon the sight picture you are seeing with the optic as you line up the scope’s crosshair or reticle with the intended point of impact. Many contemporary rifle optics have around eleven parts which are found internally and externally on the optic. These optic pieces consist of the rifle scope’s body, lenses, windage and elevation dials, focus rings, and other elements. See all eleven parts of a scope.
The Varieties of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The kind of focal plane a scope has establishes where the reticle or crosshair lies in regard to the scopes magnifying adjustments. It simply indicates the reticle is behind or ahead of the magnification lens of the scope. Deciding upon the most suitable type of rifle glass depends upon what style of hunting or shooting you plan on undertaking.
First Focal Plane Scope Info
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. This causes the reticle to increase in size based on the extent of zoom being used. The benefit is that the reticle measurements are the same at the magnified distance as they are at the non magnified range. For example, one tick on a mil-dot reticle at 100 yards without any “zoom” is still the exact same tick at 100 yards using 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, long distance kinds of shooting
- Shooting situations where estimations are minor
- Experienced shooters who recognize their aim point “hold over” plus “lead” ratios for their long guns
- Shooters who do not mind the reticle is enlarged and occupies more visual sight room than a SFP reticle
Info on Second Focal Plane Scopes
Second focal plane optics (SFP) include the reticle behind the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Far away kinds of shooting where shooters have increased time to make ballistic computations
- Shooting where most of the shots happen within much shorter ranges and spaces
- Shooters who choose a clearer optic sight picture without space used up by the enlarged FFP reticle
Zoom for Rifle Optics
The level of scope zoom you need on your glass depends upon the style of shooting you intend to do. Nearly every type of rifle scope offers some degree of magnification. The volume of magnification a scope delivers is determined by the diameter, thickness, and curvatures of the lenses inside of the rifle optic. The magnification level of the scope is the “power” of the glass. This indicates what the shooter is looking at through the scope is magnified times the power factor of what can normally be seen by human eyes.
Single Power Lens Rifle Scope Details
A single power rifle optic comes with a magnification number designator like 4×32. This means the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this kind of scope can not adjust since it is set from the factory.
Adjustable Power Lens Optics
Variable power rifle scopes can be adjusted between magnification levels. These types of scopes will note the zoom degree in a configuration such as 2-10×32. These numbers suggest the magnification of the scope could be set in between 2x and 10x power. This additionally incorporates the power levels in-between 2 and 10. The power manipulation is accomplished by working with the power ring component of the scope near the rear of the scope by the eye bell.
Power Levels and Range Correlations
Here are some suggested scope power levels and the distances where they can be efficiently used. Highly magnified rifle scope glass will not be as efficient as lower powered rifle scope glass due to the fact that too much zoom can be a bad thing. The exact same concept applies to extended distances where the shooter needs to have adequate power to see where to properly aim the rifle at the target.
Lens Covering for Glass
All current rifle optic lenses are coated. Lens finish can be a vital element of a shooting system when considering high end rifle optics and scope setups.
HD Versus ED Lenses
Some scope companies also use “HD” or high-def glass coverings which apply different processes, aspects, chemicals, and polarizations to extract separate colors and viewable target visibility through the lens. This HD finish is typically used with more costly, high density glass which drops light’s chance to refract through the lens glass. Some scope makers use “HD” to refer to “ED” suggesting extra-low dispersion glass. ED handles how certain colors are represented on the chromatic spectrum and the chromatic deviance or aberration which is similarly called color distortion or fringing. Chromatic aberration can be obvious around items with hard outlines as light hits the object from various angles.
Rifle Scope Lens Single Finish Versus Multi-Coating
Different scope lenses can also have different finishings applied to them. All lenses typically have at least some type of treatment or finish applied to them before they are used in a rifle scope or optic. Because the lens isn’t just a raw piece of glass, they require performance enhancing coatings. It becomes part of the carefully tuned optic. It requires a coating to be applied to it so that it will be efficiently usable in numerous types of environments, degrees of light (full VS shade), and other shooting conditions.
This lens treatment can protect 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 manufacturer and how much you paid for it.
Some scope makers likewise make it a point to specify if their optic lenses are covered or “multi” covered. This implies the lens has had several treatments applied to the surfaces of the glass. If a lens gets several treatments, it can show that a company is taking several actions to combat different environmental factors like an anti-glare finish, a scratch resistant anti-abrasion finish, followed by a hydrophilic coating. This additionally does not necessarily indicate the multi-coated lens is better than a single coated lens. Being “better” is dependent on the maker’s lens treatment solutions and the quality of products used in developing the rifle scope.
Anti-water Lens Covering
Water on a scope lens doesn’t help with keeping a clear sight picture through a scope whatsoever. Numerous top of the line and high-end scope makers will coat their lenses with a hydrophilic or hydrophobic finishing. The Steiner Optics Nano-Protection is a good example of this sort of treatment. It treats the exterior of the Steiner scope lens so the water particles can not bind to it or create surface tension. The outcome is that the water beads roll off of the scope to maintain a clear, water free sight picture.
Alternatives for Mounting Glass on Long Guns
Installing options for scopes come in a few choices. There are the standard scope rings which are separately mounted to the scope and one-piece mounts which cradle the scope. These different types of mounts also generally are made in quick release variations which use manual levers which permit rifle shooters to quickly install and remove the glass.
Hex Key Rifle Glass Rings
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 a couple of different rings to support the optic, and are made from 7075 T6 billet aluminum which are developed for long range precision shooting. This type of scope mount is fine for rifles which need a long lasting, rock solid mounting solution which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Rifle Scope Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to quickly remove a scope from a rifle and reattach it to a different rifle. If they all use a comparable style mount, several scopes can also be swapped in the field. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten solidly 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 back on the rifle while retaining accuracy. These types of mounts come in convenient for rifles which are moved around a lot, to take off the glass from the rifle for protection, or for sight systems which are chosen for use between a number of rifles. An example of this mount type is the 30mm mount designed by Vortex Optics. It generally costs around $250 USD
Rifle Glass Tube Sealing and Gas Purging
Wetness inside your rifle optic can ruin a day of shooting and your costly optic by triggering fogging and developing residue inside of the scope tube. A lot of scopes prevent moisture from going into the scope tube with a system of sealing O-rings which are water resistant.
About Rifle Scope Tube Gas Purging
Another part of preventing the accumulation of moisture within the rifle scope’s tube is filling the tube with a gas like nitrogen. Because this space is currently taken up by the gas, the optic is less affected by condition changes and pressure variations from the outdoor 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.