Last update on May 28, 2023 // Source: Amazon API
Rifle Scope Product Details
Sniper KT 5-40X56 SAL Rifle Scope 35mm Tube Side Parallax Adjustment Glass Etched Reticle Red Green Illuminated with Scope Rings
KT5-40X56SAL Scope and Scope Rings
High-Quality Lens Caps
Lifetime Warranty from Texas Precision Optics Inc
TUBE SIZE: 35
EYE RELIEF: 4.3~3.9
EXIT PUPIL/MM: 5~1
FIELD OF VIEW@100YARDS: 3.38~1.68
CLICK IN@100YARDS: 1/8 MOA
ADJUSTMENT RANGE: 30 MOA
SIDE FOCUS:30 yds to infinite(30, 50, 100, 300, 500 and infinite)
Diopter compensation from fast-focus eyepiece (+2 to -2)
FOG PROOF: Yes
SHOCK PROOF: Yes
WATER PROOF: Yes
Rifle Scope Product Features
Side Parallax Adjustment
35mm Tube Size
RG Illuminated Glass Etched Reticle
Capped reset turrets are finger adjustable with 1/8 MOA clicks that can be reset to zero after sighting in.
Nitrogen purged scope body, completely sealed with o-ring, rendering scope Waterproof, and fog proof
About the Sniper Brand
Sniper is a premium maker for firearm scopes, optics, mounts, and other components used for firearms like rifles and long guns. They style and make their mounts and related products by applying elements which are long lasting and durable. This includes the Sniper KT 5-40X56 SAL Rifle Scope 35mm Tube Side Parallax Adjustment Glass Etched Reticle Red Green Illuminated with Scope Rings by Sniper. For additional shooting items, visit their website.
Rifle Optic Information
Rifle scopes allow you to exactly aim a rifle at various targets by lining up your eye with the target over a distance. They accomplish this through zoom by employing a set of lenses inside the scope. The scope’s positioning can be adjusted for consideration of separate ecological factors like wind speed and elevation increases or decreases to make up for bullet drop.
The scope’s function is to understand exactly where the bullet will hit based upon the sight picture you are viewing through the optic as you line up the scope’s crosshair or reticle with the target. Most modern rifle optics have about 11 parts which are found inside and on the exterior of the scope body. These scope parts include the rifle scope’s body, lenses, elevation dials, objective focus rings, and other elements. See all eleven parts of a rifle optical system.
The Varieties of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Going for the finest type of rifle scope depends on what type of shooting you plan to do.
About First Focal Plane Optics
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. These kinds of scopes are helpful for:
- Quick acquisition, long distance types of shooting
- Shooting circumstances where estimations are marginal
- Experienced shooters who understand their target “hold over” as well as “lead” correlations for their long guns
- Shooters who don’t mind the reticle is bigger and requires more visual sight space than a SFP reticle
Second Focal Plane Glass
Second focal plane scopes (SFP) feature the reticle behind the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick measurement would be 1/5th of the non “zoom” tick.
- Long distance kinds of shooting where shooters have extra time to make ballistic calculations
- Shooting where most shots occur within shorter distances and ranges
- Shooters who like a clearer optic sight picture with less area used up by the larger size FFP reticle
Zoom for Rifle Glass
The level of scope magnification you need on your optic is based on the kind of shooting you plan to do. Just about every kind of rifle optic offers some level of zoom. The quantity of zoom a scope supplies is identified by the size, thickness, and curves of the lenses within the rifle scope. The zoom of the scope is the “power” of the opic. This indicates what the shooter is checking out through the scope is magnified times the power element of what can normally be seen by human eyes.
Fixed Power Lens Rifle Optics
A single power rifle scope and optic comes with a magnification number designator like 4×32. This implies the magnification power of the scope is 4x power while the objective lens is 32mm. The zoom of this type of optic can not adjust because it is a fixed power scope.
Variable Power Lens Rifle Glass Facts
Variable power rifle scopes can be modified between magnified levels. The power change is performed using the power ring part of the scope near the rear of the scope by the eye bell.
Scope Power Level and Range Correlation
Here are some recommended scope power settings and the distances where they can be efficiently used. Consider that higher power scopes will not be as efficient as lower powered scope and optics since increased zoom can be a negative thing in certain situations. The same concept relates to extended ranges where the shooter needs enough power to see where to best aim the rifle at the target.
Lens Covering for Rifle Scopes
All modern rifle optic and scope lenses are coated. There are various types and qualities of finishes. Lens covering can be an important element of a rifle’s setup when looking into high-end rifle optics and scope units. The glass lenses are among the most essential pieces of the glass because they are what your eye sees through while sighting a rifle in on the point of impact. The covering on the lenses offers protection to the lens surface and also assists with anti glare from refracted sunrays and color perception.
HD Versus ED Optic Lens Coatings
Some optic makers also use “HD” or high-definition lens coatings which employ various processes, polarizations, rare earth compounds, and aspects to draw out various colors and viewable target visibility through the lens. This high-definition finish is normally used with higher density glass which reduces light’s potential to refract through the lens glass. Some scope corporations use “HD” to describe “ED” suggesting extra-low dispersion glass. ED deals with how certain colors are presented on the chroma spectrum and the chromatic aberration or deviance which is similarly called color distortion or fringing. Chromatic aberration can be noticeable around objects with hard edges and shapes as light hits the object from particular angles.
Single Finish Versus Multi-Coating for Rifle Optics
Various scope lenses can also have different finishes applied to them. All lenses typically have at least some kind of treatment or finishing applied to them prior to being used in a rifle scope or optic. This is due to the fact that the lens isn’t simply a raw piece of glass. It is part of the carefully tuned optic. It must have a finishing applied to it so that the lens will be efficiently usable in lots of types of environments, degrees of light (full light VS shade), and other shooting conditions.
This lens treatment can safeguard the lens from scratches while minimizing 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 manufacturer and how much you paid for it.
Some scope makers also make it a point to define if their optic lenses are covered or “multi” coated. This indicates the lens has multiple treatments applied to them. If a lens gets several treatments, it can show that a maker is taking numerous steps to combat different natural elements like an anti-glare finishing, a scratch resistant anti-abrasion finishing, followed by a hydrophilic finish. This additionally does not necessarily imply the multi-coated lens will perform better than a single covered lens. Being “better” is dependent on the maker’s lens treatment innovation and the quality of materials used in developing the rifle optic.
Hydrophobic Finishing for Rifle Scopes
Water on an optical lens does not assist with retaining a clear sight picture through an optic in any way. Lots of top of the line and premium scope producers will coat their lenses with a hydrophobic or hydrophilic finish. The Steiner Optics Nano-Protection is a good example of this sort of treatment. It deals with the exterior of the Steiner optic lens so the water molecules can not bind to it or develop surface tension. The result is that the water beads sheet off of the scope to maintain a clear, water free sight picture.
Alternatives for Mounting Glass on Long Guns
Installing options for scopes are available in a few choices. There are the standard scope rings which are individually installed to the scope and one-piece mounts which cradle the scope. These various kinds of mounts also generally come in quick release versions which use manual levers which allow rifle operators to quickly install and dismount the scopes.
Rifle Glass Mounting Solutions with Hex Key Rings
Standard, clamp type mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mount rails on the tops of rifles. These forms of scope mounts use two individual rings to support the scope, and are normally made from 7075 T6 billet aluminum which are designed for far away precision shooting. This kind of scope mount is good for rifles which are in need of a resilient, unfailing mount which will not move despite just how much the scope is moved or jarring the rifle takes. These are the style of mounts you really want to have for a devoted scope system on a far away scouting or tournament firearm which will pretty much never need to be modified or recalibrated. Blue 242 Loctite threadlocker can additionally be used on the scope mount screws to keep the hex screw threads from backing out after they are mounted tightly in position. An example of these mounting rings are the 30mm type made by the Vortex Optics company. The set usually costs around $200 USD
Quick-Release Cantilever Rifle Optic Rings
These kinds of quick-release rifle scope mounts can be used to quickly connect and detach a scope from a rifle. Several scopes can also be switched out if they all use a complementary style mount. The quick detach mount style is CNC machined from anodized 6061 T6 aluminum and the mounting levers fasten tightly to a flat top type Picatinny rail. This allows the scope to be sighted in while on the rifle, removed from the rifle, and remounted while preserving accuracy. These kinds of mounts come in practical for shooting platforms which are carried a lot, to remove the glass from the rifle for protection, or for scopes which are adopted in between a number of rifles. An example of this mount style is the 30mm mount designed by the Vortex Optics brand. It usually costs around $250 USD
What to Know About Rifle Scope Tube Sealing and Gas Purging
Moisture inside your rifle scope can mess up a day of shooting and your costly optic by bringing about fogging and creating residue inside of the scope tube. Many scopes prevent moisture from going into the scope tube with a system of sealing O-rings which are waterproof.
Info Around Optic Tube Gas Purging
Another part of preventing the accumulation of wetness inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Given that this area is currently taken up by the gas, the scope is less altered by temperature changes and pressure variations from the external environment which may potentially permit water vapor to permeate in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a decent rifle scope to seek out.