Last update on August 9, 2022 // Source: Amazon API
Rifle Scope Product Details
Sightron SIII SS 6-24x50mm Long Range MOA Reticle Rifle Scope
Sightron SIII SS 6-24x50LRMOA Riflescope Specifications:- Magnification: 6-24X – Object Diameter: 50 – Eye Relief: 3.6-3.8 – Reticle Type: MOA-2 – Click Value: 1/4 MOA – Fov: 16.1-3.9 – Length: 14.96 – Tube Diameter: 30 mm – Windage Elevation Travel: 100 – Weight: 21.90 – Finish: Matte Black – Minutes Per Revolution: 15 – Lens Cover Included: Yes – Fully Multi Coated: Yes (Zact-7 TM 7-Layer).
Rifle Scope Product Features
About the SIGHTRON Company
SIGHTRON is a premium company for weapon scopes, optics, mounting solutions, and other add-ons used for guns like rifles and long guns. They style and make their scopes and related products by making the most of materials which are long lasting and resilient. This includes the Sightron SIII SS 6-24x50mm Long Range MOA Reticle Rifle Scope by SIGHTRON. For more shooting items, visit their website.
Rifle scopes allow you to specifically align a rifle at various targets by aligning your eye with the target at range. They accomplish this through magnification using a set of lenses within the scope. The scope’s positioning can be adapted to account for varied natural elements like wind and elevation to make up for bullet drop.
The scope’s purpose is to help the shooter understand exactly where the bullet will hit based upon the sight picture you are seeing with the scope as you align the scope’s crosshair or reticle with the intended point of impact. Most contemporary rifle scopes and optics have about 11 parts which are located inside and outside of the optic. These optic pieces include the rifle scope’s body, lenses, windage turrets, objective focus rings, and other parts. See all eleven parts of an optic.
Rifle Optic Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Opting for the optimal type of rifle optic is based around what type of shooting you plan to do.
Info About First Focal Plane Optics
Focal plane scopes (FFP) come with the reticle in front of the zoom lens. This triggers the reticle to increase in size based on the amount of zoom being used. The result is that the reticle measurements are the same at the enhanced range as they are at the non amplified distance. One tick on a mil-dot reticle at one hundred yards with no “zoom” is still the same tick at one hundred yards with 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, long distance types of shooting
- Shooting situations where estimations are minor
- Experienced shooters who understand their aim point “hold over” plus “lead” equations for their long guns
- Shooters who don’t mind the reticle is enlarged and requires more visual eyesight space than a SFP reticle
About Second Focal Plane Scopes
Second focal plane optics (SFP) include the reticle to the rear of the magnification lens. This induces the reticle to stay at the exact same size relative to the level of zoom being used. The result is that the reticle measurements adapt based upon the zoom used to shoot over greater ranges considering the markings represent distinct increments which fluctuate with the zoom level. In the FFP example with the SFP optic, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick. These styles of scopes work for:
- Long distance types of shooting where shooters have extra time to make ballistic computations
- Shooting where most of the shots take place within shorter distances and ranges
- Shooters who prefer a clearer optic picture without room used up by the enlarged FFP reticle
Ins and Outs of Rifle Glass Zoom
The amount of zoom a scope offers is determined by the diameter, thickness, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
Fixed Power Lens Optic Facts
A single power rifle optic and scope will have a zoom number designator like 4×32. This indicates the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of optic can not fluctuate since it is set from the factory.
Adjustable Power Lens Glass Facts
Variable power rifle scopes can be changed between magnification increments. It will note the zoom level in a configuration such as 2-10×32. These numbers suggest the zoom of the scope could be set between 2x and 10x power. This always involves the power levels in-between 2 and 10. The power modification is achieved using the power ring part of the scope near the rear of the scope by the eye bell.
Power and Range
Here are some suggested scope power settings and the ranges where they could be efficiently used. Highly magnified glass will not be as useful as lower magnification level glass considering too much zoom can be a bad thing. The same concept goes for longer ranges where the shooter needs to have enough power to see where to properly aim the rifle at the target.
Lens Coating for Rifle Scopes
All modern rifle optic lenses are coated. There are various types and qualities of glass finishes. When thinking about high end rifle scope systems, Lens covering can be an essential aspect of defining the capability of the rifle. The glass lenses are among the most essential pieces of the glass given that they are what your eye looks through while sighting a rifle in on the point of impact. The covering on the lenses safeguards the lens surface area and also assists with anti glare from excess direct sunlight and color profiles.
HD Versus ED Rifle Glass Lens Coatings
Some rifle scope producers additionally use “HD” or high-definition lense finishings which employ different processes, chemicals, polarizations, and aspects to draw out various colors and viewable target definition through the lens. This HD coating is commonly used with more costly, high density lens glass which drops light’s chance to refract through the lens glass. Some scope brands use “HD” to refer to “ED” meaning extra-low dispersion glass. ED deals with how colors are presented on the chromatic spectrum and the chromatic aberration or difference which is also 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 Scopes
Different scope lenses can even have various coverings applied to them. All lenses typically have at least some type of treatment or finish applied to them before being used in a rifle scope or optic assembly. This is since the lens isn’t simply a raw piece of glass. It becomes part of the carefully tuned optic. It requires a coating to be applied to it so that it will be optimally usable in lots of kinds of environments, degrees of light (full light VS shaded), and other shooting conditions.
Single layered lenses have a treatment applied to them which is usually a protective and enhancing multi-purpose treatment. This lens treatment can safeguard the lens from scratches while decreasing glare and other less useful things experienced in the shooting environment while sighting in with the optic. The quality of a single layered lens depends upon the scope designer and just how much you spent for it. Both are indicators of the lens quality.
Some scope producers also make it a point to define if their optic lenses are coated or “multi” coated. This implies the lens has had several treatments applied to the surfaces of the glass. If a lens gets multiple treatments, it can show that a manufacturer is taking numerous steps to fight different natural aspects like an anti-glare coating, a scratch resistant anti-abrasion finishing, followed by a hydrophilic coating. This additionally does not necessarily indicate the multi-coated lens is much better than a single covered lens. Being “much better” is dependent on the manufacturer’s lens treatment techniques and the quality of glass used in constructing the rifle scope.
Hydrophobic Lens Coatings
Water on an optic’s lens doesn’t improve maintaining a clear sight picture through a scope whatsoever. Many top of the line and high-end optic manufacturers will coat their lenses with a hydrophobic or hydrophilic finish. The Steiner Optics Nano-Protection is a good example of this kind of treatment. It provides protection for the exterior surfaces of the Steiner scope lens so the water particles can not bind to it or produce surface tension. The outcome is that the water beads slide off of the scope to keep a clear, water free sight picture.
Choices for Installing Optics on Long Guns
Mounting solutions for scopes are available in a couple of choices. There are the basic scope rings which are separately installed to the optic and one-piece scope mounts which cradle the scope. These different kinds of mounts also generally come in quick release variations which use toss levers which permit rifle operators to rapidly mount and dismount the optics.
Hex Key Rifle Glass Ring Mounts
Standard, clamp-on style mounting optic rings use hex head screws to install to the flattop design Picatinny scope mount rails on the tops of rifles. These kinds of scope mounts use a pair of separate rings to support the scope, and are normally constructed from 7075 T6 billet aluminum or similar materials which are developed for far away accuracy shooting. This form of scope mount is effective for rifles which need a long lasting, unfailing mount which will not move regardless of how much the scope is moved or jarring the rifle takes. These are the type of mounts you should have for a dedicated optics system on a long distance scouting or competitors long gun which will almost never need to be changed or adjusted. Blue 242 Loctite threadlocker can also be used to stop the hex screw threads from backing out after they are mounted tightly in place. An example of these mounting rings are the 30mm style from Vortex Optics. The set usually costs around $200 USD
Quick-Release Cantilever Optic Ring Mounting Solutions
These kinds of quick-release rifle scope mounts can be used to rapidly connect and take off a scope from a rifle. If they all use a comparable design mount, several scopes can often be swapped out in the field. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers attach solidly to a flat top design Picatinny rail. This lets the scope to be sighted in while on the rifle, removed from the rifle, and remounted while preserving precision. These types of mounts are useful and practical for rifles which are hauled around a lot, to take off the optic from the rifle for protection, or for scopes which are used in between several rifles. An example of this mount style is the 30mm mount designed by Vortex Optics. It usually costs around $250 USD
Rifle Optic Tube Sealing and Gas Purging
Wetness inside your rifle optic can ruin a day of shooting and your pricey optic by bringing about fogging and creating residue inside of the scope tube. A lot of scopes avoid moisture from going into the scope tube with a system of sealing O-rings which are waterproof.
Gas Purged Optic Tubes
Another component of avoiding the accumulation of wetness within the rifle scope’s tube is filling the tube with a gas like nitrogen. Because this area is currently taken up by the gas, the optic is less influenced by climate changes and pressure variations from the outside environment which might possibly 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.