Description
Rifle Scope Product Details
Sightron SIII SS 10-50x60mm Long Range Rifle Scope, TARGET DOT
All scopes in the SIII series feature a 30mm one-piece Main-Tube made from high quality Aircraft aluminum. Tube thickness is more than twice as thick as one inch models to provide maximum rigidity. All models are fogproof, shockproof and waterproof. Side Parallax focus is available on all SIIB SS models and SIII SS LR Series Riflescopes. Designed for ease of use in prone and bench shooting the side focus will focus from 10-40 yards to infinity depending on the specific model. Large oversize target knobs with 1/8 inch adjustments are standard on all models. All models feature target knobs that are re-settable to zero. All target knobs are protected by large heavy windage and elevation caps. This scope features the ultimate in all weather construction. They are waterproof, nitrogen filled and provide a lifetime of internal fog protection for inclement weather. A European style fast focus eyeball accompanies all SIII SS Long Range Models. A quick turn of the eyebell allows the user to focus in a matter of seconds. Tweaking the eye focus is just a small adjustment away. This scope features Sightron’s unique ExacTrack windage and elevation adjustment system. No other system on the market comes clost to the precision and performance of ExacTrack. Specifications: – Magnification: 10-50X – Object Diameter: 60 – Eye Relief: 3.8-4.5 – Reticle Type: Dot (0.125) – Click Value: 1/8 MOA – Fov: 9.6-2.2 – Length: 16.90 – Tube Diameter: 30mm – Windage Elevation Travel: 50 – Weight: 28.92 – Finish: Matte Black – Minutes Per Revolution: 10 – Target Knobs: Yes – Sunshade Included: No – Fully Multi Coated: Yes (Zact-7 TM 7-Layer)
Rifle Scope Product Features
25138
SIII LR Series Riflescope 10-50x60mm
Optics
Scopes & Accessories
About the SIGHTRON Manufacturer
SIGHTRON is a premium maker for rifle scopes, optics, mounting solutions, and other components used for guns like rifles and long guns. They style and make their scopes, mounts, and related products using building materials which are durable and long lasting. This includes the Sightron SIII SS 10-50x60mm Long Range Rifle Scope, TARGET DOT by SIGHTRON. For more shooting items, visit their site.
Info About Rifle Optics
Rifle scopes permit you to specifically aim a rifle at different targets by aligning your eye with the target over a distance. They do this through magnification using a set of lenses within the scope. The scope’s alignment can be adapted to take into account varied ecological aspects like wind speed and elevation decreases to make up for bullet drop.
The scope’s purpose is to help shooters understand exactly where the bullet will hit based upon the sight picture you are viewing using the scope as you line up the scope’s crosshair or reticle with the target. Many contemporary rifle scopes have about 11 parts which are located internally and externally on the scope body. These parts include the rifle scope’s body, lenses, adjustment dials, objective focus rings, and other parts. Learn about the eleven parts of glass.
Rifle Optic Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The sort of focal plane an optic has establishes where the reticle or crosshair lies relative to the scopes magnifying adjustments. It simply implies the reticle is located behind or before the magnifying lens of the optic. Choosing the most reliable type of rifle scope is based on what style of shooting you plan on undertaking.
About First Focal Plane Optics
First focal plane scopes (FFP) come with the reticle before the magnifying lens. This induces the reticle to increase in size based upon the amount of zoom being used. The result is that the reticle measurements are the same at the amplified distance as they are at the non magnified distance. One tick on a mil-dot reticle at 100 yards without “zoom” is still the identical tick at one hundred yards with 5x “zoom”. These kinds of scopes are valuable for:
- Quick acquisition, far away types of shooting
- Shooting situations where computations are minimal
- Experienced shooters who understand their target “hold over” and “lead” ratios for their firearm
- Shooters who don’t mind the reticle is enlarged and requires more visual sight room than a SFP reticle
Second Focal Plane Scopes
Second focal plane scopes (SFP) feature the reticle behind the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick measurement.
- Long distance forms of shooting where shooters have more time to make ballistic computations
- Shooting where most of the shots occur within shorter ranges and spaces
- Shooters who like a clearer optic sight picture with less area used up by the enlarged FFP reticle
Optic Magnification
The level of scope zoom you require depends on the style of shooting you intend to do. Virtually every style of rifle optic supplies some level of zoom. The level of magnification a scope provides is identified by the size, thickness, and curves of the lenses within the rifle scope. The magnifying level of the scope is the “power” of the scope. This implies what the shooter is checking out through the scope is amplified times the power factor of what can generally be seen by human eyes.
Fixed Power Lens Glass Facts
A single power rifle scope and optic 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 zoom of this type of scope can not fluctuate given that it is set from the factory.
Adjustable Power Lens Rifle Scopes
Variable power rifle scopes can be adjusted between magnification power levels. It will list the magnification degree in a format such as 2-10×32. These numbers indicate the zoom of the scope can be changed in between 2x and 10x power. This also involves the powers in-between 2 and 10. The power modification is accomplished by operating the power ring part of the scope near the rear of the scope by the eye bell.
Power Levels and Range Correlations
Here are some advised scope power levels and the ranges where they can be successfully used. Keep in mind that high magnification optics will not be as effective as lower magnification level scopes because increased zoom can be a bad thing. The same idea applies to longer ranges where the shooter needs to have enough power to see precisely where to best aim the rifle.
Rifle Glass Lens Coating
All modern-day rifle scope lenses are coated. There are different types and qualities of lens finishes. Lens coating can be an important element of a rifle’s setup when contemplating luxury rifle optics and targeting equipment. The lenses are among the most crucial pieces of the glass due to the fact that they are what your eye looks through while sighting a rifle in on the target. The covering on the lenses shields the lens surface and even assists with anti glare from refracted sunshine and color recognition.
Details on Lens Coatings – HD Versus ED
Some scope companies additionally use “HD” or high-definition lense coverings that use various processes, components, compounds, and polarizations to enhance different color ranges and viewable target visibility through the lens. This high-definition finish is often used with more costly, high density glass which lowers light’s ability to refract through the lens glass. Some scope brands use “HD” to describe “ED” signifying extra-low dispersion glass. ED handles how certain colors are represented on the chroma spectrum and the chromatic aberration or difference which is also called color distortion or fringing. Chromatic aberration can be visible over items with hard shapes as light hits the object from specific angles.
Scope Lens Single Finish Versus Multi-Coating
Various optic lenses can even have different coverings applied to them. All lenses generally have at least some kind of treatment or coating applied to them before being used in a rifle scope or optic assembly. This is because the lens isn’t simply a raw piece of glass. It becomes part of the carefully tuned optic. It must have a coating put on it so that it will be efficiently functional in numerous kinds of environments, degrees of sunshine (full light VS shade), and other shooting conditions.
This lens treatment can safeguard 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 producer and how much you paid for it.
Some scope makers similarly make it a point to define if their optic lenses are covered or “multi” coated. Being “better” depends on the producer’s lens treatment technology and the quality of materials used in developing the rifle scope.
Rifle Glass Lens Hydrophobic Covering
Water on a lens does not help with keeping a clear sight picture through a scope at all. Many top of the line and high-end optic makers will coat their lenses with a hydrophilic or hydrophobic finishing.
Glass Mounting Alternatives
Installing approaches for scopes are available in a few choices. There are the standard scope rings which are separately installed to the optic and one-piece scope mounts which cradle the scope. These various types of mounts also typically come in quick release versions which use throw levers which enable rifle shooters to rapidly install and remove the scopes.
Scope Mounting Solutions with Hex Key Rings
Basic, clamp-on style mounting scope rings use hex head screws to fix to the flattop design Picatinny scope mounting rails on rifles. These kinds of scope mounts use two individual rings to support the optic, and are usually constructed from 7075 T6 billet aluminum which are manufactured for long distance accuracy shooting. This form of scope mount is great for rifles which need to have a resilient, hard use mount which will not change regardless of how much the scope is moved or abuse the rifle takes. These are the design of mounts you want for a devoted optics setup on a long distance hunting or competition rifle which will rarely need to be altered or adjusted. Blue 242 Loctite threadlocker can also be used on the scope mount’s screws to protect against the hex screw threads from wiggling out after they are installed safely in position. An example of these rings are the 30mm style from Vortex Optics. The set normally costs around $200 USD
Quick-Release Cantilever Rifle Scope 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. If they all use a similar style mount, multiple scopes can also be swapped out on the range. 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 enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while maintaining precision. These types of mounts come in practical for rifles which are moved a lot, to take off the glass from the rifle for protection, or for scopes which are employed in between multiple rifles. An example of this mount type is the 30mm mount designed by Vortex Optics. It generally costs around $250 USD
Rifle Optic Tube Sealing and Gas Purging
Wetness inside your rifle scope can wreck a day on the range and your highly-priced optic by causing fogging and generating residue within the scope’s tube. Many optics prevent humidity from getting in the optical tube with a series of sealing O-rings which are water resistant. Generally, these optics can be immersed under 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be more than enough moisture avoidance for conventional use rifles, unless you plan on taking your rifle aboard a watercraft and are concerned about the optic still working if it is submerged in water and you can still retrieve the rifle.
Glass Gas Purging
Another part of preventing the buildup of moisture inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Since this space is already taken up by the gas, the glass is less affected by temp shifts and pressure variations from the external environment which may potentially permit water vapor to seep in around the seals to fill the void which would otherwise be there. These are good qualities of a decent rifle scope to seek out.
