Last update on May 17, 2022 // Source: Amazon API
Rifle Scope Product Details
SG Tactical 3-9X40AOEG Rifle Scope
SG Riflescope 3-9X40AOEG Optics Hunting Red & Green Mil-dot Reticle Illuminated Crosshair Adjustable Intensified Rifle Scope with Lens Cover Illuminated Level: 5 Intensity (Red) and 5 Intensity (Green) Specification: Finish: Matte Black Waterproof :Yes Minimum Power: 3 Maximum Power: 9 Adjustment Click Value 1/4 MOA Adjustment Type: Click Finger Adjustable Turrets Yes Turrets Resettable to Zero: Yes Fast Focus Eye Piece Yes Warranty: Sportsman’s Gear limited lifetime warranty Illuminated Reticle: yes Lens Covers Included: Yes Reticle Construction Wire Illuminated Reticle: Yes Battery Type CR2032 Fog Proof: Yes Shock Proof: Yes Objective Lens Diameter: 40 Millimeter Eye Relief 80 Millimeter Exit Pupil Diameter: 10.67-3.56 Millimeter Field of View @ 100 Yards Minimum Power 7.6° Field of View @ 100 Yards Maximum Power 3° Maximum Windage Adjustment 65 MOA Maximum Elevation Adjustment 65 MOA Weight : 15OZTube Diameter: 25.4mm
Rifle Scope Product Features
Minimum Power 3 Maximum Power 9
100% water and fog-proof housing, O-ring sealing and Nitrogen filling ensure moisture never penetrates interior
Red & Green Mil-dot Reticle Illuminated Crosshair , 5 Intensity (Red) and 5 Intensity (Green)
Adjustment Click Value 1/4 MOA
Turrets Re settable to Zero: Yes
About the SG Sportsman’s Gear Scope Maker
SG Sportsman’s Gear is a premium producer for firearm scopes, optics, mounting solutions, and other add-ons used for guns like rifles and long guns. They design and make their products by making the most of materials which are long lasting and durable. This includes the SG Tactical 3-9X40AOEG Rifle Scope by SG Sportsman’s Gear. For additional shooting items, visit their site.
Info About Scopes
Rifle scopes allow you to precisely align a rifle at different targets by lining up your eye with the target over a range. They do this through magnification by using a series of lenses within the scope. The scope’s positioning can be adapted to account for many ecological considerations like wind and elevation decreases to make up for bullet drop.
The scope’s purpose is to understand precisely where the bullet will land based on the sight picture you are viewing via the scope as you line up the scope’s crosshair or reticle with the intended target. A lot of contemporary rifle optics have about 11 parts which are arranged inside and outside of the scope. These optic pieces include the rifle scope’s body, lenses, elevation turrets or dials, objective focus rings, and other parts. Learn about the eleven parts of rifle scopes.
Rifle Glass Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The type of focal plane a scope has determines where the reticle or crosshair is located in connection with the scopes magnifying adjustments. It literally suggests the reticle is behind or in front of the magnification lens of the optic. Deciding upon the most effective type of rifle glass is based upon what variety of hunting or shooting you plan on undertaking.
About First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These styles of scopes are beneficial for:
- Quick acquisition, long distance types of shooting
- Shooting circumstances where estimations are small
- Experienced shooters who recognize their target “hold over” plus “lead” ratios for their rifles
- Shooters who don’t mind the reticle is enlarged and uses up more visual sight space than a SFP reticle
About Second Focal Plane Optics
Second focal plane scopes (SFP) feature the reticle behind the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Long distance forms of shooting where shooters have extra time to make ballistic computations
- Shooting where most shots take place within much shorter spaces and ranges
- Shooters who select a clearer optic picture with less room used up by the bigger FFP reticle
Ins and Outs of Glass Magnification
The quantity of zoom a scope offers is figured out 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 Optic Facts
A single power rifle scope or optic will have a magnification number designator like 4×32. This means the magnification power of the scope is 4x power and the objective lens is 32mm. The magnification of this kind of scope can not change since it is a fixed power scope.
About Variable Power Lens Rifle Glass
Variable power rifle scopes have adjustable power. These types of scopes will note the zoom degree in a format such as 2-10×32. These numbers mean the magnification of the scope can be changed between 2x and 10x power. This also includes the powers in-between 2 and 10. The power modification is achieved by making use of the power ring part of the scope near the back of the scope by the eye bell.
Rifle Scope Power Level and Range Correlation
Here are some advised scope powers and the ranges where they can be effectively used. Always remember that higher power optics will not be as effective as lower magnification level optics since excessive zoom can be a bad thing. The very same idea applies to longer ranges where the shooter needs increased power to see where to properly aim the rifle.
Lens Finishing for Optics
All state-of-the-art rifle scope and optic lenses are coated. Lens finish is a significant aspect of a rifle when purchasing high end rifle optics and scope systems.
HD Versus ED Lens Coatings
Some glass manufacturers will also use “HD” or high-def lense coatings which use various procedures, polarizations, aspects, and chemicals to enhance separate color ranges and viewable definition through lenses. This high-definition finish is frequently used with higher density glass which reduces light’s potential to refract by means of the lens glass. Some scope vendors use “HD” to refer to “ED” signifying 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 visible over items with hard edges and outlines as light hits the object from specific angles.
Single Covering Versus Multi-Coating
Different optic lenses can likewise have different finishings used to them. All lenses usually have at least some type of treatment or covering used to them before they are used in a rifle scope or optic.
Single coated lenses have a treatment applied to them which is generally a protective and improving multi-purpose treatment. This lens treatment can shield the lens from scratches while minimizing glare and other less useful things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends on the scope producer and how much money you spent on it. Both the make and cost are indications of the lens quality.
Some scope manufacturers likewise make it a point to define if their optic lenses are layered or “multi” coated. This indicates the lens has numerous treatments applied to the surfaces of the glass. If a lens gets several treatments, it can prove that a company is taking numerous actions to combat various environmental factors like an anti-glare finishing, a scratch resistant anti-abrasion coating, followed by a hydrophilic finishing. This additionally does not always suggest the multi-coated lens will perform much better than a single covered lens. Being “much better” depends upon the maker’s lens treatment solutions and the quality of glass used in building the rifle optic.
Hydrophobic Lens Coatings
Water on a lens doesn’t assist with preserving a clear sight picture through a scope at all. Lots of top of the line and high-end scope makers will coat their lenses with a hydrophilic or hydrophobic finish.
Optic Installing Alternatives
Installing solutions for scopes can be found in a few options. There are the basic scope rings which are separately installed to the scope and one-piece mounts which cradle the scope. These various types of mounts also typically are made in quick release versions which use throw levers which allow rifle operators to rapidly install and remove the optics.
Hex Key Rifle Scope Rings
Standard, clamp style mounting optic rings use hex head screws to mount to the flattop style Picatinny scope mounting rails on the tops of rifles. These varieties of scope mounts use double independent rings to support the optic, and are normally made from 7075 T6 billet aluminum or similar materials which are created for long distance precision shooting. This kind of scope mount is effective for rifle systems which need a durable, unfailing mount which will not change no matter how much the scope is moved about or jarring the rifle takes. These are the style of mounts you want for a specialized scope system on a reach out and touch someone scouting or sniper competition long gun which will pretty much never need to be modified or adjusted. Blue 242 Loctite threadlocker can also be used on the scope mount’s screws to stop the hex screws from backing out after they are installed securely in place. An example of these mounting rings are the 30mm type made by the Vortex Optics brand. The set typically costs around $200 USD
Quick-Release Cantilever Glass Rings
These types of quick-release rifle scope mounts can be used to quickly attach and detach a scope from a rifle. If they all use a similar style mount, multiple scopes can often be swapped out on the range. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers connect securely to a flat top style Picatinny rail. This enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while keeping accuracy. These types of mounts are useful and practical for rifles which are moved a lot, to remove the optic from the rifle for protection, or for sight systems which are adopted between several rifles. An example of this mount type is the 30mm mount designed by the Vortex Optics brand. It typically costs around $250 USD
About Optic Tube Sealing and Gas Purging
Moisture inside your rifle optic can destroy a day of shooting and your expensive optic by triggering fogging and producing residue inside of the scope tube. Many scopes avoid wetness from entering the scope tube with a system of sealing O-rings which are waterproof.
Glass Gas Purging
Another component of preventing the accumulation of wetness inside of the rifle scope tube is filling the tube with a gas like nitrogen. Because this space is currently taken up by the gas, the glass is less affected by temperature level shifts and pressure distinctions from the outdoor environment which might potentially permit water vapor to leak in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to look for.