Last update on November 29, 2023 // Source: Amazon API
Rifle Scope Product Details
Sightron 10-50x 60mm LR Mil Dot Reticle Side Focus SIII Riflescope – 25144
SIII 10-50x60mm Long Range Mil-Dot Specifications: – Magnification: 10-50X – Object Diameter: 60 – Eye Relief: 3.8-4.5 – Reticle Type: Mil-Dot (indexed at 24X) – 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 – Windage Elevation Knobs: Target Type (Resetable) – Adjustable Objective: Side Focus – Fully Multi Coated: Yes (Zact-7 TM 7-Layer
Rifle Scope Product Features
Long range sighting device for shooting competitions
Side focus system
Versatile Mil-Dot (@24X) reticle
1/8 MOA increment adjustment, re-settable target knobs
ExacTrack windage and elevation adjustment system
About the SIGHTRON Company
SIGHTRON is a premium company for firearm scopes, optics, mounting solutions, and other components used for firearms like rifles and long guns. They innovate and build their scopes, mounts, and related products by using materials which are long lasting and durable. This includes the Sightron 10-50x 60mm LR Mil Dot Reticle Side Focus SIII Riflescope – 25144 by SIGHTRON. For more shooting goods, visit their site.
Information About Rifle Glass
Rifle scopes permit you to precisely align a rifle at various targets by lining up your eye with the target at range. They do this through magnification using a series of lenses within the scope. The scope’s positioning can be adapted to account for separate ecological factors like wind speed and elevation increases or decreases to account for bullet drop.
The scope’s purpose is to understand precisely where the bullet will land based upon the sight picture you are viewing using the scope as you align the scope’s crosshair or reticle with the intended point of impact. A lot of modern rifle optics have about 11 parts which are arranged within and externally on the optic. These optic pieces include the rifle scope’s body, lenses, modification turrets, objective focus rings, and other components. See all eleven parts of a scope.
Rifle Glass Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The type of focal plane an optic has establishes where the reticle or crosshair is located in relation to the scopes zoom. It simply suggests the reticle is situated behind or ahead of the magnification lens of the optic. Picking out the most ideal style of rifle glass is based upon what form of shooting you anticipate doing.
First Focal Plane Scope Details
First focal plane scopes (FFP) include the reticle in front of the zoom lens. This triggers the reticle to increase in size based on 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 amplified range. One tick on a mil-dot reticle at one hundred yards without “zoom” is still the identical tick at 100 yards with 5x “zoom”. These types of scopes are valuable for:
- Quick acquisition, long distance kinds of shooting
- Shooting scenarios where estimations are minor
- Experienced shooters who have an idea for their target “hold over” and “lead” relationships for their long guns
- Shooters who don’t mind the reticle is enlarged and uses up more visual sight area than a SFP reticle
About Second Focal Plane Scopes
Second focal plane glass (SFP) include the reticle to the rear of the zoom lens. This triggers the reticle to remain at the same scale in relation to the volume of magnification being used. The outcome is that the reticle dimensions alter based on the magnification used to shoot over greater ranges considering the reticle measurements represent different increments which vary with the zoom. In the FFP example with the SFP optic, the 5x “zoom” one hundred yard tick measurement would be 1/5th of the non “zoom” tick measurement. These styles of glass are handy for:
- Far away kinds of shooting where shooters have increased time to make ballistic computations
- Shooting where most shots occur within much shorter ranges and distances
- Shooters who prefer a clearer optic picture without space used up by the bigger FFP reticle
The quantity of magnification a scope provides 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 Scopes
A single power rifle optic will have a magnification 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 type of scope can not adjust because it is a set power scope.
Variable Power Lens Rifle Optics
Variable power rifle scopes use enhanced power. The power change is performed by using the power ring part of the scope near the back of the scope by the eye bell.
Power Levels and Range
Here are some recommended scope power settings and the ranges where they could be effectively used. High power optics will not be as effective as lower powered glass since too much magnification can be a bad thing. The same idea applies to extended distances where the shooter needs adequate power to see precisely where to properly aim the rifle.
Info on Scope Lens Finish
All state-of-the-art rifle scope lenses are layered. Lens finishing can be a vital aspect of a shooting system when thinking about high end rifle optics and scope setups.
HD Versus ED Glass Lens Coatings
Some rifle glass companies even use “HD” or high-definition glass coatings that take advantage of various processes, aspects, compounds, and polarizations to enhance a wide range of color ranges and viewable target visibility through the lens. This high-def covering is normally used with higher density glass which decreases light’s chance to refract through the lens glass. Some scope producers use “HD” to describe “ED” indicating extra-low dispersion glass. ED handles how certain colors are presented on the chromatic spectrum and the chromatic aberration or difference which is also called color distortion or fringing. Chromatic aberration can be noticeable around objects with hard edges and shapes as light hits the item from particular angles.
Scope Lens Single Finish Versus Multi-Coating
Various optic lenses can likewise have various finishings applied to them. All lenses typically have at least some type of treatment or finishing applied to them prior to being used in a rifle scope or optic.
This lens treatment can safeguard the lens from scratches while reducing glare and other less advantageous things experienced in the shooting environment while sighting in with the scope. The quality of a single layered lens depends on the scope producer and how much you paid for it.
Some scope manufacturers likewise make it a point to define if their optic lenses are covered or “multi” coated. This implies the lens has had multiple treatments applied to the surfaces of the glass. If a lens gets numerous treatments, it can indicate that a manufacturer is taking several actions to fight different natural factors like an anti-glare finishing, a scratch resistant anti-abrasion finish, followed by a hydrophilic finish. This additionally does not necessarily indicate the multi-coated lens will perform much better than a single layered lens. Being “better” is dependent on the maker’s lens treatment technology and the quality of glass used in developing the rifle optic.
Anti-water Scope Lens Coating
Water on a lens does not help with maintaining a clear sight picture through a scope at all. Numerous top of the line and high-end scope companies will coat their lenses with a hydrophilic or hydrophobic coating.
Choices for Mounting Rifle Scopes on Firearms
Mounting solutions for scopes are available in a few choices. There are the basic scope rings which are individually mounted to the optic and one-piece mounts which cradle the scope. These various kinds of mounts also usually come in quick release versions which use manual levers which permit rifle shooters to rapidly install and remove the scope.
Hex Key Optic Rings
Basic, clamp type mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mounting rails on rifles. These varieties of scope mounts use a pair of individual rings to support the optic, and are made from 7075 T6 billet aluminum or similar materials which are developed for long distance accuracy shooting. This kind of scope mount is exceptional for rifle systems which require a long lasting, unfailing mount which will not move regardless of how much the scope is moved or abuse the rifle takes. These are the design of mounts you really want to have for a specialized scope setup on a reach out and touch someone scouting or tournament firearm which will hardly ever need to be changed or recalibrated. Blue 242 Loctite threadlocker can additionally be used on screws to keep the hex screw threads from wiggling out after they are mounted securely in place. An example of these mounting rings are the 30mm style from Vortex Optics. The set normally costs around $200 USD
Quick-Release Cantilever Rifle Optic Rings
These kinds of quick-release rifle scope mounts can be used to rapidly attach and detach a scope from a rifle. If they all use a comparable style mount, a number of 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 connect tightly to a flat top design Picatinny rail. This allows the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while retaining accuracy. These types of mounts are useful and beneficial for rifles which are moved a lot, to remove the optic from the rifle for protection, or for aiming systems which are adopted in between a number of rifles. An example of this mount type is the 30mm mount designed by Vortex Optics. It normally costs around $250 USD
Optic Tube Sealing and Gas Purging
Wetness inside your rifle glass can spoil a day on the range and your costly optic by triggering fogging and creating residue inside of the scope’s tube. Most scopes protect against humidity from entering the scope tube with a system of sealing O-rings which are waterproof. Typically, these water-resistant scopes can be submerged under 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be sufficient humidity avoidance for conventional use rifles for hunting and sporting purposes, unless you plan on taking your rifle aboard a watercraft and are worried about the optic still functioning if it falls overboard and you can still rescue the firearm.
Gas Purged Rifle Glass Tubes
Another component of preventing the accumulation of moisture inside of the rifle scope tube is filling the tube with a gas like nitrogen. Considering that this area is already occupied by the gas, the optic is less altered by temp shifts and pressure variations from the external environment which might potentially permit water vapor to seep in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to seek out.