Last update on August 9, 2022 // Source: Amazon API
Rifle Scope Product Details
SIGHTRON 26012 S Tac Series Riflescope, 3-16x42mm, Duplex Reticle, Matte Black
Sightron S-TAC Series riflescopes, 3-16x42mm, duplex reticle, matte black features:- fast focus eyebell- side focus system- ExacTrack- all weather construction- Zact-7 Revcoat multi-coating (S-TAC Series)- S-TAC one-piece Main-Tube.
Rifle Scope Product Features
Country Of Origin: China
Product Type: Sporting Goods
Item Package Dimensions: 43.687 L X 11.43 W X 10.668 H (Cm)
Item Package Weight: 1.247 Kilograms
About the SIGHTRON Manufacturer
SIGHTRON is a premium producer for weapon scopes, optics, mounts, and other components used for guns like rifles and long guns. They style and manufacture their scopes and related products by using elements which are long lasting and durable. This includes the SIGHTRON 26012 S Tac Series Riflescope, 3-16x42mm, Duplex Reticle, Matte Black by SIGHTRON. For more shooting products, visit their site.
What You Need to Know About Rifle Glass
Rifle scopes enable 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 positioning can be dialed in for consideration of separate natural aspects like wind and elevation decreases to make up for bullet drop.
The scope’s purpose is to help the shooter understand precisely where the bullet will land based on the sight picture you are viewing through the optic as you align the scope’s crosshair or reticle with the intended point of impact. Most modern-day rifle scopes and optics have around 11 parts which are arranged internally and externally on the optic. These optic pieces consist of the rifle scope’s body, lenses, elevation dials or turrets, focus rings, and other components. See all eleven parts of a scope.
About Rifle Glass Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Selecting the finest type of rifle glass is based around what type of shooting you plan on doing.
First Focal Plane Optics
Focal plane scopes (FFP) come with the reticle in front of the magnifying lens. This induces the reticle to increase in size based on the amount of magnification being used. The benefit is that the reticle measurements are the same at the enhanced range as they are at the non amplified range. As an example, one tick on a mil-dot reticle at 100 yards without “zoom” is still the corresponding tick at one hundred yards using 5x “zoom”. These types of scopes work for:
- Quick acquisition, long distance types of shooting
- Shooting situations where estimations are small
- Experienced shooters who understand their target “hold over” plus “lead” correlations for their firearm
- Shooters who don’t mind the reticle is bigger and uses up more visual eyesight room than a SFP reticle
Second Focal Plane Scope Facts
Second focal plane optics (SFP) come with 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.
- Far away types of shooting where shooters have more time to make ballistic estimations
- Shooting where most shots occur within much shorter distances and ranges
- Shooters who choose a clearer optic picture with less area used up by the bigger FFP reticle
Rifle Optic Magnification
The amount of zoom a scope supplies 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 Single Power Lens Rifle Optic Facts
A single power rifle scope and optic comes with a zoom number designator like 4×32. This means the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this kind of optic can not change since it is set from the factory.
Variable Power Lens Glass
Variable power rifle scopes can be changed between magnification levels. These types of scopes will list the zoom degree in a configuration such as 2-10×32. These numbers mean the magnification of the scope could be adjusted in between 2x and 10x power. This also involves the powers in-between 2 and 10. The power adaptation is achieved by operating the power ring component of the scope near the rear of the scope by the eye bell.
Optic Power Level and Range Correlation
Here are some recommended scope power levels and the distances where they may be efficiently used. Remember that higher magnification optics will not be as effective as lower powered glass due to the fact that increased magnification can be a negative thing in certain situations. The same concept relates to longer distances where the shooter needs adequate power to see where to best aim the rifle.
Scope Lens Coating
All contemporary rifle optic and scope lenses are covered in special coatings. There are different types and qualities of glass coatings. When looking at luxury rifle optical setups, Lens finish can be an important component of defining the rifle’s capability. The lenses are one of the most important components of the optic given that they are what your eye looks through while sighting a rifle in on the target. The coating on the lenses protects the lens exterior and even improves anti glare from excess light and color visibility.
HD Versus ED Lens Coatings
Some scope makers likewise use “HD” or high-definition lens coverings which use various methods, chemicals, polarizations, and elements to draw out different colors and viewable definition through the lens. Some scope manufacturers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Single Rifle Glass Lens Coating Versus Multi-Coating
Different scope lenses can even have various finishes 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. This is since the lens isn’t simply a raw piece of glass. It is part of the finely tuned optic. It requires a coating to be applied to it so that it will be optimally usable in numerous kinds of environments, degrees of sunlight (full VS shade), and other shooting conditions.
Single covered lenses have a treatment applied to them which is normally a protective and boosting multi-purpose treatment. This lens treatment can preserve the lens from scratches while minimizing glare and other less advantageous things experienced in the shooting environment while sighting in with the optic. The quality of a single layered lens depends on the scope company and how much you spent paying for it. Both the manufacturer and amount are indicators of the lens quality.
Some scope makers also make it a point to define if their optic lenses are coated or “multi” coated. This means the lens has several treatments applied to the surfaces. If a lens gets several treatments, it can indicate that a company is taking numerous steps to fight various natural factors like an anti-glare finishing, a scratch resistant anti-abrasion coating, followed by a hydrophilic coating. This additionally does not always suggest the multi-coated lens is much better than a single coated lens. Being “better” hinges on the producer’s lens treatment solutions and the quality of materials used in constructing the rifle glass.
What to Know About Hydrophobic Covering
Water on a lens does not help with keeping a clear sight picture through a scope at all. Lots of top of the line and military grade optic makers will coat their lenses with a hydrophobic or hydrophilic covering.
Choices for Mounting Rifle Glass on Long Guns
Mounting solutions for scopes can be found in a couple of choices. There are the basic scope rings which are individually mounted to the optic and one-piece scope mounts which cradle the scope. These different kinds of mounts also generally can be found in quick release variations which use toss levers which permit rifle shooters to quickly install and dismount the scopes.
Rifle Scope Mounts with Hex Key Rings
Standard, clamp-on design mounting scope rings use hex head screws to fix to the flattop design Picatinny scope mounting rails on the tops of rifles. These varieties of scope mounts use two independent rings to support the scope, and are normally made from 7075 T6 billet aluminum or similar materials which are designed for long distance precision shooting. This form of scope mount is excellent for rifle systems which require a long lasting, hard use mount which will not move no matter how much the scope is moved about or jarring the rifle takes. These are the design of mounts you want for a faithful scope system on a long distance scouting or competition long gun which will almost never need to be changed or adjusted. Blue 242 Loctite threadlocker can also be used on screws to prevent the hex screws from wiggling out after they are mounted firmly in position. An example of these rings are the 30mm style from Vortex Optics. The set typically costs around $200 USD
Quick-Release Cantilever Rifle Optic Rings
These kinds of quick-release rifle scope mounts can be used to quickly remove a scope from a rifle and reattach it to a different rifle. A wide range of scopes can also be switched out if they all use a similar designed mount. The quick detach mount style is CNC machined from anodized 6061 T6 aluminum and the mounting levers fasten securely to a flat top style Picatinny rail. This allows the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while retaining the original sighting settings. These kinds of mounts are useful and practical for rifles which are transferred between vehicles a lot, to take off the scope glass from the rifle for protection, or for sight systems which are utilized in between multiple rifles. An example of this mount type is the 30mm mount designed by the Vortex Optics manufacturer. It typically costs around $250 USD
Rifle Scope Tube Sealing and Gas Purging
Moisture inside your rifle scope can ruin a day on the range and your highly-priced optic by causing fogging and making residue within the scope’s tube. Most scopes protect against wetness from getting in the optical tube with a system of sealing O-rings which are water resistant. Generally, these water resistant optics can be submerged beneath 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be more than enough moisture content prevention for standard use rifles for hunting and sporting purposes, unless you anticipate taking your rifle aboard watercrafts and are worried about the scope still functioning if it goes over the side and you can still salvage the gun.
Rifle Glass Gas Purging
Another component of avoiding the buildup of wetness inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Because this area is currently occupied by the gas, the optic is less affected by temp shifts and pressure variations from the outside environment which may possibly allow water vapor to permeate 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.