Last update on August 13, 2022 // Source: Amazon API
Rifle Scope Product Details
SIGHTRON 25016 SIII 30mm Riflescope 10-50x60mm, Long Range MOA-H Reticle
Sightron III Series SIIISS 10-50x60mm lrmoa-h riflescopefeatures:- fast focus eyeball- side focus system- III Series one-piece Main-Tube – ExacTrack- Zact-7 Revcoat multi-coating (III Series)- all weather construction- tactical turrets 0.25 MOA
Rifle Scope Product Features
Black matte finish
All weather construction
About the SIGHTRON Brand
SIGHTRON is a premium supplier for weapon scopes, optics, mounting solutions, and other components used for firearms like rifles and long guns. They design and build their mounts and related products using materials which are durable and long lasting. This includes the SIGHTRON 25016 SIII 30mm Riflescope 10-50x60mm, Long Range MOA-H Reticle by SIGHTRON. For additional shooting goods, visit their website.
Facts About Glass
Rifle scopes enable you to precisely aim a rifle at various targets by aligning your eye with the target over a distance. They do this through magnification by using a set of lenses inside the scope. The scope’s positioning can be dialed in to account for numerous ecological aspects like wind speed and elevation increases or decreases to account for bullet drop.
The scope’s purpose is to understand exactly where the bullet will land based on the sight picture you are viewing with the optic as you line up the scope’s crosshair or reticle with the target. The majority of contemporary rifle optics have around eleven parts which are located internally and on the exterior of the optic. These scope parts include the rifle scope’s body, lenses, windage dials, objective focus rings, and other parts. See all eleven parts of a rifle optical system.
Rifle Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Finding the perfect type of rifle glass is based around what type of shooting you plan on doing.
Info About First Focal Plane Optics
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. These types of scopes are useful for:
- Quick acquisition, long distance kinds of shooting
- Shooting circumstances where computations are minimal
- Experienced shooters who have an idea for their aim point “hold over” and “lead” ratios for their long gun
- Shooters who don’t mind the reticle is bigger and occupies more visual sight area than a SFP reticle
About Second Focal Plane Glass
Second focal plane scopes (SFP) feature the reticle to the rear of the magnifying lens. This induces the reticle to stay at the very same scale relative to the volume of magnification being used. The outcome is that the reticle measurements adjust based upon the zoom used to shoot over lengthier distances considering the reticle measurements present different increments which fluctuate with the magnification level. In the FFP example with the SFP glass, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick reticle measurement. These particular kinds of optics work for:
- Long distance kinds of shooting where shooters have extra time to make ballistic computations
- Shooting where most shots occur within shorter ranges and spaces
- Shooters who select a clearer optic picture without room used up by the larger sized FFP reticle
Rifle Scope Zoom
The amount of scope magnification you require is based on the style of shooting you intend to do. Pretty much every style of rifle glass delivers some level of zoom. The amount of zoom a scope gives is established by the diameter, density, and curves of the lens glass inside of the rifle optic. The magnification of the scope is the “power” of the opic. This means what the shooter is checking out through the scope is magnified times the power aspect of what can normally be seen by human eyes.
Single Power Lens Rifle Scopes
A single power rifle scope will have a zoom number designator like 4×32. This means the magnification power of the scope is 4x power while the objective lens is 32mm. The zoom of this type of scope can not fluctuate given that it is fixed.
Adjustable Power Lens Optics
Variable power rifle scopes use variable power levels. The power adjustment is accomplished by making use of 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 could be effectively used. High power rifle scope glass will not be as beneficial as lower powered optics considering that too much zoom can be a bad thing. The exact same concept goes for longer ranges where the shooter needs to have increased power to see where to properly aim the rifle at the target.
Details on Lens Finishing
All contemporary rifle optic lenses are coated. There are various types and qualities of glass lens coatings. When thinking about high end rifle targeting setups, Lens finishing can be a significant element of a rifle. The glass lenses are among the most critical components of the scope because they are what your eye looks through while sighting a rifle in on the target. The coating on the lenses shields the lens exterior and even assists with anti glare from refracted sunlight and color presence.
Details on Lens Coatings – HD Versus ED
Some optic producers additionally use “HD” or high-definition lense finishings which use various procedures, chemicals, elements, and polarizations to draw out a wide range of color ranges and viewable target visibility through lenses. This HD finish is frequently used with higher density lens glass which brings down light’s capability to refract through the lens glass. Some scope makers use “HD” to refer to “ED” indicating extra-low dispersion glass. ED deals with how colors are represented on the chroma spectrum and the chromatic aberration or difference which is also called color distortion or fringing. Chromatic aberration is often visible around things with hard shapes as light hits the item from particular angles.
What to Know About Single Covering Versus Multi-Coating
Different scope lenses can even have different finishings applied to them. All lenses typically have at least some type of treatment or covering applied to them prior to being used in a rifle scope or optic assembly. This is since the lens isn’t just a raw piece of glass. It is part of the finely tuned optic. It requires a coating to be applied to it so that the lens will be efficiently functional in lots of types of environments, degrees of light (full light VS shade), and other shooting conditions.
This lens treatment can protect the lens from scratches while minimizing 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 manufacturers also make it a point to define if their optic lenses are covered or “multi” coated. This indicates the lens has multiple treatments applied to the surfaces. If a lens gets several treatments, it can indicate that a manufacturer is taking multiple actions to combat various natural aspects like an anti-glare covering, a scratch resistant anti-abrasion finish, followed by a hydrophilic covering. This also does not necessarily mean the multi-coated lens will perform better than a single coated lens. Being “better” hinges on the producer’s lens treatment technology and the quality of products used in creating the rifle glass.
Hydrophobic Lens Finishing
Water on a scope’s lens doesn’t assist with maintaining a clear sight picture through an optic in any way. Lots of top of the line or premium optic manufacturers will coat their lenses with a hydrophilic or hydrophobic coating. The Steiner Optics Nano-Protection is a fine example of this kind of treatment. It deals with the exterior surfaces of the Steiner optic lens so the H2O particles can not bind to it or produce surface tension. The result is that the water beads roll off of the scope to preserve a clear, water free sight picture.
Rifle Optic Mounting Choices
Mounting solutions for scopes can be found in a couple of options. There are the standard scope rings which are separately installed to the optic and one-piece mounts which cradle the scope. These different types of mounts also typically are made in quick release versions which use throw levers which allow rifle operators to quickly install and dismount the scope.
Rifle Optic Mounts with Hex Key Rings
Standard, clamp-on design mounting optic rings use hex head screws to mount to the flattop design Picatinny scope mount rails on the tops of rifles. These kinds of scope mounts use double separate rings to support the scope, and are normally made from 7075 T6 billet aluminum or similar materials which are designed for long distance accuracy shooting. This type of scope mount is exceptional for rifles which are in need of a durable, rock solid mount which will not move despite just how much the scope is moved about or jarring the rifle takes. These are the type of mounts you should get for a dedicated optics setup on a long distance hunting or competitors long gun that will rarely need to be modified or recalibrated. Blue 242 Loctite threadlocker can additionally be used on the mount’s screws to keep the hex screw threads from backing out after they are mounted securely in position. An example of these rings are the 30mm style made by Vortex Optics. The set generally costs around $200 USD
Optic Mounting Solutions with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly attach and take off a scope from a rifle before reattaching it to a different rifle. Several scopes can also be swapped out if they all use a compatible style mount. These types of mounts come in handy for rifle platforms which are carried a lot, to swap out the optic from the rifle for protecting the scope, or for scopes which are used in between numerous rifles or are situationally focused.
Sealing and Gas Purging for Glass Tubes
Wetness inside your rifle scope can ruin a day of shooting and your pricey optic by causing fogging and creating residue inside of the scope tube. Most scopes avoid moisture from getting in the scope tube with a system of sealing O-rings which are waterproof.
Glass Gas Purging
Another component of preventing the accumulation of moisture within the rifle scope tube is filling the tube with a gas like nitrogen. Considering that this space is currently taken up by the gas, the glass is less impacted by temperature level alterations and pressure variations from the outside environment which may possibly 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.