Last update on February 2, 2023 // Source: Amazon API
Rifle Scope Product Details
8-32 x 56 SIII Fine X Riflescope
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 1/4 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: 8-32X – Object Diameter: 56 – Eye Relief: 3.6-4.0 – Reticle Type: Fine CrossHair – Click Value: 1/4 MOA – Fov: 12.2-3.1 – Length: 15.35 – Tube Diameter: 30mm – Windage Elevation Travel: 70 – Weight: 24.70 – Finish: Matte Black – Minutes Per Revolution: 15 – Target Knobs: Yes – Sunshade Included: Yes – Windage Elevation Knobs: Target Type (Resetable) – Adjustable Objective: Side Focus – Fully Multi Coated: Yes (Zact-7 TM 7-Layer)
Rifle Scope Product Features
56mm objective diameter
30mm tube diameter
Fine cross hair reticle
Fast focus eyebell
About the SIGHTRON Company
SIGHTRON is a premium manufacturer for weapon scopes, optics, mounts, and other add-ons used for guns like rifles and long guns. They innovate and make their mounts, scopes, and related products working with elements which are durable and long lasting. This includes the 8-32 x 56 SIII Fine X Riflescope by SIGHTRON. For more shooting items, visit their website.
What You Need to Know About Optics
Rifle scopes permit you to exactly align a rifle at different targets by lining up your eye with the target at range. They do this through magnifying the target by making use of a set of lenses inside the scope. The scope’s alignment can be adjusted for the consideration of different ecological considerations like wind and elevation to make up for bullet drop.
The scope’s purpose is to help shooters understand exactly where the bullet will hit based on the sight picture you are viewing with the optic as you line up the scope’s crosshair or reticle with the target. A lot of modern rifle scopes have around 11 parts which are located within and outside of the scope body. These scope parts consist of the rifle scope’s body, lenses, windage and elevation turrets or dials, focus rings, and other elements. Learn about the eleven parts of scopes.
About Rifle Glass Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Considering the optimal type of rifle scope is based on what type of shooting you plan on doing.
Info About First Focal Plane Scopes
Focal plane scopes (FFP) come with the reticle in front of the zoom lens. This induces 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 amplified distance as they are at the non magnified range. For example, one tick on a mil-dot reticle at one hundred yards without having “zoom” is still the corresponding tick at one hundred yards using 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, far away types of shooting
- Shooting situations where calculations are minimal
- Experienced shooters who understand their target “hold over” and also “lead” relationships for their rifles
- Shooters who do not mind the reticle is bigger and takes up more visual sight space than a SFP reticle
About Second Focal Plane Glass
Second focal plane optics (SFP) include the reticle behind the zoom lens. This causes the reticle to remain at the very same size in relation to the quantity of magnification being used. The result is that the reticle dimensions adjust based upon the zoom employed to shoot over greater distances because the reticle markings represent distinct increments which can vary with the zoom level. 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 reticle measurement. These varieties of scopes work for:
- Far away styles of shooting where shooters have extra time to make ballistic estimations
- Shooting where most of the shots take place within shorter spaces and ranges
- Shooters who would like a clearer optic picture without room taken up by the larger size FFP reticle
Ins and Outs of Rifle Glass Magnification
The quantity of zoom a scope provides is identified by the size, thickness, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Fixed Power Lens Rifle Scopes
A single power rifle optic and scope will have a zoom 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 type of scope can not adjust because it is fixed.
Variable Power Lens Rifle Optic Facts
Variable power rifle scopes can be modified between magnified settings. The power change is performed using the power ring part of the scope near the back of the scope by the eye bell.
Rifle Glass Power and Ranges
Here are some recommended scope powers and the distances where they can be effectively used. Highly magnified optics will not be as efficient as lower magnification level glass given that too much zoom can be a bad thing. The very same idea relates to longer distances where the shooter needs to have adequate power to see precisely where to properly aim the rifle.
About Lens Coating
All modern rifle optic and scope lenses are coated. There are various types and qualities of glass finishes. Lens finishing is an important aspect of a rifle when considering luxury rifle optics and scope units. The lenses are one of the most key parts of the scope given that they are what your eye sees through while sighting a rifle in on the point of impact. The finishing on the lenses safeguards the lens surface and also helps with anti glare capabilities from refracted sunrays and color discernibility.
Info on Lens Coatings – HD Versus ED
Some rifle glass companies also use “HD” or high-definition glass finishes which use various procedures, components, polarizations, and chemical applications to enhance different colors and viewable definition through the lens. This high-def covering is often used with higher density glass which lowers light’s capability to refract by means of the lens glass. Some scope makers use “HD” to describe “ED” meaning extra-low dispersion glass. ED handles how certain colors are presented on the chromatic spectrum and the chromatic deviance or aberration which is also called color distortion or fringing. Chromatic aberration may be obvious over things with well defined shapes as light hits the item from various angles.
Details on Single Covering Versus Multi-Coating
Various optic lenses can likewise have different coatings used to them. All lenses generally have at least some type of treatment or covering applied to them before being used in a rifle scope or optic.
This lens treatment can protect the lens from scratches while reducing 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 maker and how much you paid for it.
Some scope producers likewise make it a point to specify if their optic lenses are covered or “multi” coated. This means the lens has had several treatments applied to the surfaces. If a lens receives several treatments, it can indicate that a maker is taking multiple actions to combat various environmental aspects like an anti-glare coating, a scratch resistant anti-abrasion finish, followed by a hydrophilic covering. This also does not always imply the multi-coated lens is much better than a single layered lens. Being “better” depends upon the producer’s lens treatment solutions and the quality of products used in developing the rifle optic.
Hydrophobic Lens Finishes
Water on a scope’s lens does not improve preserving a clear sight picture through an optic in any way. Many top of the line or premium optic makers will coat their lenses with a hydrophilic or hydrophobic coating. The Steiner Optics Nano-Protection is a good example of this type of treatment. It treats the surface area of the Steiner scope lens so the H2O molecules can not bind to it or create surface tension. The result is that the water beads move off of the scope to preserve a clear, water free sight picture.
Options for Mounting Rifle Scopes on Firearms
Installing options for scopes come in a couple of options. There are the basic scope rings which are individually mounted to the optic and one-piece mounts which cradle the scope. These various types of mounts also generally are made in quick release variations which use toss levers which enable rifle shooters to quickly install and remove the glass.
Hex Key Optic 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 two separate rings to support the optic, and are made from 7075 T6 billet aluminum which are created for long distance accuracy shooting. This type of scope install is wonderful for rifles which need a resilient, rock solid mount which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Optic Ring Mounts
These kinds of quick-release rifle scope mounts can be used to rapidly attach and take off a scope from a rifle. Several scopes can also be switched out if they all use a complementary designed mount. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers connect tightly to a flat top design Picatinny rail. This allows the scope to be sighted in while on the rifle, removed from the rifle, and remounted back on the rifle while preserving precision. These kinds of mounts come in convenient for shooting platforms which are transported a lot, to take off the optic from the rifle for protection, or for optics which are utilized between several rifles. An example of this mount style is the 30mm mount from the Vortex Optics brand. It usually costs around $250 USD
What to Know About Optic Tube Sealing and Gas Purging
Moisture inside your rifle scope can wreck a day on the range and your expensive optic by causing fogging and generating residue inside of the scope’s tube. The majority of scopes protect against moisture from going into the optical tube with a system of sealing O-rings which are water resistant. Usually, these scopes can be submerged beneath 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be sufficient moisture content avoidance for conventional use rifles for hunting and sporting purposes, unless you intend on taking your rifle on a boat and are worried about the scope still performing if it falls overboard and you can still find the gun.
Rifle Glass Gas Purging
Another part of avoiding the buildup of wetness inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Given that this space is currently occupied by the gas, the optic is less affected by temperature level shifts and pressure distinctions from the outside environment which could possibly enable water vapor to leak in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a good rifle scope to seek out.