Description
Rifle Scope Product Details
QILU 2.5-10×40 Rifle Scope – Illuminated Red & Green Mil-dot Reticle, Reflex Sight Gun Sights Rifle Scope Red Dot with Red Laser & 20mm Mounts
Specification
Magnification: 2.5x-10x
Objective Diameter: 40mm
Lens Type: Multi-coated Green Lens
Eye Relief: 4” @ 2.5x – 3”@ 10x
Exit Pupil: 0.52” @ 2.5x – 0.17” @ 10x
Field Of View: 100 Yards Of 34.86′ @2.5x – 11.53′ @10
Illuminated Level: 5 Intensity (Red) And 5 Intensity (Green)
Reticle Type: Mil-dot
Click Value: 1/4inch@100 Yds
Laser Class: Class IIIA
Laser Power: 2mW
Laser Wavelength:650 Nm
Dimensions: 8.5″ X 3″x 3″
Net Weight: 20.5oz(approx.)
Tube Diameter: 1.57”
Finsh: Black Matte
Special Design
Bullet Drop Compensator: Allows Quick Adjustments Of The Reticle For Shooting Targets At Specific Distances(100-500 Yds).
Multi-coated Green Lens: With Much Higher Light Transimittance Compared With Normal Blue Lens, Allows Clearer Image.
Special 2 In 1 Design: Scope And Gun Sight Laser Built Together To Ensure Precise Shooting.
0.79” (20mm) Mounts Included
Package Include
1 X 2.5-10x40e Rifle Scope
1 X Lens Cover
Battery: CR 2032 X 1(reticle); LR1130 X3(gun Sight Laser)
1 X Scope Mounts For 20mm Picatinny Or Weaver Rail
1 X Allen Key
1 X Cleaning Cloth
Rifle Scope Product Features
Illumination Modes: Red & Green (5 Intensity)
Magnification: 2.5-10X; Objective Diameter: 40mm; AO: NO
Durable: Made Of High Strength Aircraft Aluminum
Clearer Image: Multi-coated Green Lens Boast Much Higher Light Transmittance Compard With Blue Lens
Field Of View:100 Yards Of 32.5 @ 2.5x – 8.9 @10x; Laser: 2mW, Class IIIA, Reaching 100 Yards
About the QILU Scope Maker
QILU is a premium producer for rifle scopes, optics, mounts, and other accessories used for guns like rifles and long guns. They style and build their scopes, mounts, and related products making the most of building materials which are long lasting and resilient. This includes the QILU 2.5-10×40 Rifle Scope – Illuminated Red & Green Mil-dot Reticle, Reflex Sight Gun Sights Rifle Scope Red Dot with Red Laser & 20mm Mounts by QILU. For additional shooting products, visit their site.
Scope Details
Rifle scopes enable you to exactly aim a rifle at various targets by lining up your eye with the target over a range. They do this through magnifying the target by employing a series of lenses inside the scope. The scope’s alignment can be adjusted to account for various environmental factors like wind and elevation increases or decreases to account for bullet drop.
The scope’s purpose is to help shooters understand precisely where the bullet will land based upon the sight picture you are seeing via the scope as you line up the scope’s crosshair or reticle with the intended target. Many modern-day rifle scopes have around eleven parts which are arranged internally and outside of the scope body. These parts consist of the rifle scope’s body, lenses, elevation turrets, focus rings, and other components. See all eleven parts of an optic.
Rifle Scope Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Opting for the finest type of rifle scope is based on what type of shooting you plan to do.
First Focal Plane Optic Facts
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These kinds of scopes are useful for:
- Quick acquisition, long distance types of shooting
- Shooting circumstances where estimations are minimal
- Experienced shooters who know their aim point “hold over” plus “lead” equations for their rifles
- Shooters who don’t mind the reticle is bigger and requires more visual eyesight area than a SFP reticle
Second Focal Plane Optic Info
Second focal plane scopes (SFP) feature the reticle behind the zoom 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.
- Far away styles of shooting where shooters have additional time to make ballistic calculations
- Shooting where most shots occur within much shorter ranges and spaces
- Shooters who want a clearer optic sight picture with less room used up by the larger sized FFP reticle
Zoom for Optics
The quantity of magnification a scope supplies is figured out by the size, 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 Glass
A single power rifle scope or optic uses a zoom number designator like 4×32. This implies the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this type of optic can not adjust since it is fixed.
Adjustable Power Lens Optics
Variable power rifle scopes can be changed between magnification levels. It will list the zoom amount in a format such as 2-10×32. These numbers suggest the zoom of the scope can be set between 2x and 10x power. This additionally involves the powers in-between 2 and 10. The power adaptation is achieved by making use of the power ring part of the scope near the rear of the scope by the eye bell piece.
Power Levels and Range Correlations
Here are some suggested scope power levels and the ranges where they may be successfully used. Remember that high magnification glass will not be as effective as lower magnification level optics due to the fact that excessive zoom can be a bad thing. The exact same concept relates to extended ranges where the shooter needs sufficient power to see exactly where to best aim the rifle.
Info on Rifle Glass Lens Coating
All contemporary rifle scope lenses are coated. Lens coating is a significant element of a shooting system when purchasing high end rifle optics and scope setups.
HD Versus ED Lenses
Some glass makers will also use “HD” or high-definition glass coverings that employ different procedures, components, chemicals, and polarizations to enhance different color ranges and viewable target visibility through the lens. This high-def coating is often used with more costly, high density lens glass which drops light’s potential to refract by means of the lens glass. Some scope suppliers use “HD” to refer to “ED” signifying extra-low dispersion glass. ED deals with how colors are represented on the chromatic spectrum and the chromatic aberration which is also called color distortion or fringing. Chromatic aberration is often obvious around things with well defined shapes as light hits the object from specific angles.
Rifle Optic Lens Single Covering Versus Multi-Coating
Different optic lenses can also have different coverings applied to them. All lenses usually have at least some type of treatment or covering applied to them prior to being used in a rifle scope or optic. Because the lens isn’t simply a raw piece of glass, they require performance enhancing coatings. It is part of the carefully tuned optic. It must have a finishing placed on it so that it will be optimally usable in lots of types of environments, degrees of sunlight (full light VS shaded), and other shooting conditions.
Single layered lenses have a treatment applied to them which is normally a protective and improving multi-purpose treatment. This lens treatment can shield the lens from scratches while reducing glare and other less advantageous things experienced in the shooting environment while sighting in with the optic. The quality of a single covered lens depends upon the scope designer and how much money you spent paying for it. Both the make and cost are indicators of the lens quality.
Some scope makers similarly make it a point to specify if their optic lenses are layered or “multi” coated. Being “better” depends on the producer’s lens treatment technology and the quality of materials used in developing the rifle scope.
Hydrophobic Lens Coatings
Water on a lens doesn’t help with preserving a clear sight picture through a scope at all. Numerous top of the line and high-end optic makers will coat their lenses with a hydrophobic or hydrophilic finish which is water repellent.
Choices for Installing Rifle Glass on Firearms
Installing approaches for scopes are available in a couple of options. There are the standard scope rings which are separately installed to the scope and one-piece mounts which cradle the scope. These different kinds of mounts also normally can be found in quick release variations which use manual levers which allow rifle shooters to rapidly mount and remove the scope.
Hex Key Rifle Glass Rings
Standard, 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 two different rings to support the optic, and are made from 7075 T6 billet aluminum which is developed for long range accuracy shooting. This type of scope install is excellent for rifles which require a durable, rock solid mounting solution which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Scope Rings
These kinds of quick-release rifle scope mounts can be used to quickly connect and remove a scope from a rifle. If they all use a similar style mount, a number of scopes can also be switched on the range. The quick detach mount style is CNC machined from anodized 6061 T6 aluminum and the mounting levers fasten firmly to a flat top style Picatinny rail. This permits the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while keeping the original sighting settings. These kinds of mounts come in handy for shooting platforms which are hauled around a lot, to remove the glass from the rifle for protection, or for optics which are chosen for use in between several rifles. An example of this mount style is the 30mm mount designed by the Vortex Optics brand. It normally costs around $250 USD
What to Know About Rifle Scope Tube Sealing and Gas Purging
Moisture inside your rifle scope can destroy a day on the range and your expensive optic by resulting in fogging and making residue inside of the scope tube. Most scopes protect against moisture from getting in the scope tube with a series of sealing O-rings which are waterproof. Generally, 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 plenty of moisture content avoidance for conventional use rifles, unless you plan on taking your rifle aboard a watercraft and are concerned about the scope still performing if it is submerged in water and you can still retrieve the rifle.
Rifle Scope Gas Purging
Another component of preventing the buildup of moisture within the rifle scope’s tube is filling the tube with a gas like nitrogen. Because this space is already occupied by the gas, the scope is less influenced by temp changes and pressure variations from the outside environment which may possibly permit water vapor to seep in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a decent rifle scope to look for.
