Description
Rifle Scope Product Details
SIGHTRON, SIII Long Range Riflescope, 6-24x50mm, 30mm Tube, Zero Stop Side Focus FFP Plane MOA-2 Reticle, Black
The Sightron SIII Long Range Rifle Scope features a 30mm tube for added strength and better light transmission. Each Sightron SIII is nitrogen filled to prevent fogging and is also water, fog and shockproof. The Zero Stop may be the easiest and quickest on the market. The rotating lock ring does not require any knob removal or shims as in other models. To set the zero stop, simply sight in the gun, rotate the zero stop and tighten the lock ring set screw and you are set to go. Other features include easy to adjust target style turrets, side parallax adjustment, and a fast focus eyepiece. Specifications: – Finish: Matte Black – Waterproof: Yes – Tube Diameter: 30mm – Power Variability: Variable – Minimum Power: 6 – Maximum Power: 24 – Adjustment Click Value: 1/4 MOA – Adjustment Type: Click – Exposed Turrets: Yes – Finger Adjustable Turrets: Yes – Turrets Resettable to Zero: Yes – Zero Stop: Yes – Turret Height: High – Fast Focus Eye Piece: Yes – Lens Coating: Zact7 Fully Multi-Coated – Rings Included: No – Sun Shade Included: Yes – Lens Covers Included: Yes – Reticle: MOA-2 – Reticle Construction: Glass Etched – Illuminated Reticle: No – Holdover Reticle: Yes – Reticle Focal Plane Location: 1st – Parallax Adjustment: Side Focus – Fog Proof: Yes – Shock Proof: Yes – Overall Length: 14.96″ – Objective Lens Diameter: 50 Millimeter – Eye Relief: 3.8-3.6″ – Field of View @ 100 Yards Minimum Power: 16.1′ – Field of View @ 100 Yards Maximum Power: 3.9′ – Maximum Windage Adjustment: 100 MOA – Maximum Elevation Adjustment: 100 MOA
Rifle Scope Product Features
Country Of Origin: Philippines
Product Type: Sporting Goods
Item Package Dimensions: 8″ L X 8″ W X 6″ H
Item Package Weight: 1.066 Kilograms
About the SIGHTRON Manufacturer
SIGHTRON is a premium manufacturer for firearm scopes, optics, mounts, and other accessories used for firearms like rifles and long guns. They create and make their products by making the most of building materials which are long lasting and durable. This includes the SIGHTRON, SIII Long Range Riflescope, 6-24x50mm, 30mm Tube, Zero Stop Side Focus FFP Plane MOA-2 Reticle, Black by SIGHTRON. For more shooting items, visit their site.
Rifle Optic Details
Rifle scopes permit you to exactly aim a rifle at various targets by lining up your eye with the target at range. They accomplish this through magnifying the target by utilizing a set of lenses inside the scope. The scope’s alignment can be adapted to account for various natural considerations like wind speed and elevation increases or decreases to account for bullet drop.
The scope’s purpose is to help the shooter understand exactly where the bullet will land based on the sight picture you are seeing using the optic as you align the scope’s crosshair or reticle with the intended point of impact. The majority of contemporary rifle optics have about 11 parts which are found within and externally on the optic. These scope parts include the rifle scope’s body, lenses, windage and elevation turrets, objective focus rings, and other parts. Learn about the eleven parts of rifle glass.
Rifle Glass Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Deciding upon the best type of rifle scope depends on what type of shooting you plan to do.
Info About First Focal Plane Glass
First focal plane scopes (FFP) include the reticle ahead of the magnification lens. This induces the reticle to increase in size based on the amount of zoom being used. The outcome is that the reticle measurements are the same at the magnified range as they are at the non amplified distance. For example, one tick on a mil-dot reticle at one hundred yards without having “zoom” is still the corresponding tick at 100 yards using 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, far away kinds of shooting
- Shooting circumstances where estimations are minimal
- Experienced shooters who recognize their aim point “hold over” as well as “lead” correlations for their firearm
- Shooters who don’t mind the reticle is enlarged and occupies more visual sight area than a SFP reticle
Second Focal Plane Glass Info
Second focal plane optics (SFP) feature the reticle to the rear of the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Far away types of shooting where shooters have more time to make ballistic calculations
- Shooting where most shots take place within shorter distances and ranges
- Shooters who desire a clearer optic picture with less area used up by the larger size FFP reticle
Rifle Glass Magnification
The amount of scope zoom you need on your scope is based on the sort of shooting you desire to do. Just about every type of rifle scope provides some level of zoom. The quantity of magnification a scope gives is established by the size, density, and curvatures of the lenses inside of the rifle optic. The zoom of the scope is the “power” of the glass. This means what the shooter is observing through the scope is amplified times the power aspect of what can typically be seen by human eyes.
Single Power Lens Optics
A single power rifle scope uses a zoom number designator like 4×32. This suggests the magnification power of the scope is 4x power and the objective lens is 32mm. The magnification of this kind of optic can not change given that it is a fixed power optic.
About Variable Power Lens Rifle Glass
Variable power rifle scopes can be changed between magnification power levels. These types of scopes will note the magnification degree in a configuration such as 2-10×32. These numbers imply the zoom of the scope could be changed in between 2x and 10x power. This also incorporates the powers in-between 2 and 10. The power shift is achieved by employing the power ring component of the scope near the back of the scope by the eye bell piece.
Power Levels and Range Correlations
Here are some recommended scope power levels and the distances where they could be efficiently used. Bear in mind that high magnification optics and scopes will not be as efficient as lower powered scopes due to the fact that excessive magnification can be a detractor. The exact same concept applies to extended ranges where the shooter needs to have increased power to see exactly where to best aim the rifle at the target.
Info on Scope Lens Finish
All current rifle optic lenses are coated. Lens coating can be a crucial element of a shooting system when looking at high end rifle optics and scope setups.
HD Versus ED Optic Lens Coatings
Some optic suppliers also use “HD” or high-definition lens finishes that take advantage of different processes, polarizations, aspects, and chemicals to enhance separate colors and viewable target visibility through the lens. This HD covering is frequently used with more costly, high density lens glass which reduces light’s opportunity to refract by means of the lens glass. Some scope corporations use “HD” to describe “ED” indicating extra-low dispersion glass. ED deals with how certain colors are represented on the chromatic spectrum and the chromatic aberration or deviance which is similarly called color distortion or fringing. Chromatic aberration can be noticeable around items with defined outlines as light hits the object from various angles.
Single Finish Versus Multi-Coating for Rifle Optics
Various optic lenses can also have various coverings applied to them. All lenses normally have at least some type of treatment or coating applied to them before they are used in a rifle scope or optic.
Single covered lenses have a treatment applied to them which is usually a protective and enhancing multi-purpose treatment. This lens treatment can shield the lens from scratches while minimizing glare and other less beneficial things experienced in the shooting environment while sighting in with the optic. The quality of a single coated lens depends on the scope company and the amount you spent for it. Both the manufacturer and amount are indications of the lens quality.
Some scope makers likewise make it a point to define if their optic lenses are coated or “multi” covered. This suggests the lens has numerous treatments applied to the surfaces of the glass. If a lens gets several treatments, it can indicate that a producer is taking several steps to fight different natural 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 better than a single layered lens. Being “better” hinges on the maker’s lens treatment technology and the quality of materials used in developing the rifle scope.
Info on Anti-water Coating
Water on an optic’s lens doesn’t help with keeping a clear sight picture through an optic at all. Numerous top of the line or high-end scope manufacturers will coat their lenses with a hydrophilic or hydrophobic covering. The Steiner Optics Nano-Protection is a good example of this kind of treatment. It provides protection for the exterior of the Steiner optic lens so the water particles can not bind to it or produce surface tension. The result is that the water beads roll off of the scope to maintain a clear, water free sight picture.
Glass Mounting Choices
Installing options for scopes are available in a few options. There are the standard scope rings which are individually installed to the optic and one-piece scope mounts which cradle the scope. These different types of mounts also usually come in quick release versions which use throw levers which enable rifle shooters to quickly mount and remove the optics.
Optic Mounting Solutions with Hex Key Rings
Normal, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope installation rails on rifles. These types of scope mounts use a couple of separate rings to support the optic, and are made from 7075 T6 billet aluminum which are designed for long distance precision shooting. This type of scope mount is perfect for rifles which require 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 Scope Rings
These types of quick-release rifle scope mounts can be used to quickly connect and take off a scope from a rifle. Multiple scopes can also be swapped out if they all use a complementary designed mount. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect firmly to a flat top type Picatinny rail. This lets the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while maintaining accuracy. These kinds of mounts are useful and handy for rifles which are transferred a lot, to remove the scope from the rifle for protection, or for scopes which are employed in between numerous rifles. An example of this mount style is the 30mm mount designed by Vortex Optics. It usually costs around $250 USD
Sealing and Gas Purging for Rifle Scope Tubes
Wetness inside your rifle scope can wreck a day on the range and your highly-priced optic by inducing fogging and producing residue within the scope’s tube. Most scopes protect against moisture from getting in the scope tube with a series of sealing O-rings which are water resistant. Typically, these water resistant optics can be submerged under 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be ample moisture avoidance for conventional use rifles, unless you intend on taking your rifle on boats and are concerned about the optic still working if it goes over the side and you can still recover the firearm.
Info on Rifle Scope Tube Gas Purging
Another component of avoiding the accumulation of wetness inside of the rifle scope tube is filling the tube with a gas like nitrogen. Considering that this area is currently occupied by the gas, the scope is less impacted by temp alterations and pressure distinctions from the external environment which may potentially allow 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 look for.
