Description
Rifle Scope Product Details
QILU 2.5-10×40 Tactical Rifle Scope Red & Green
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
NITROGEN FILLED ” Our Rifle Scope Is Made To Withstand The Weather And Has Been Nitrogen Filled And O-ring Sealed Making It Water-proof And Fog-proof.
Batteries Included.
INTEGRATED RED LASER SIGHT ” Fully Adjustable And Independently Controlled
MADE FROM HIGH GRADE AIRCRAFT ALUMINUM ” The Survival Land Rife Scope Is Made From Aluminium Alloy Which Provides A Rigid Construction Perfect For Any Outdoor Adventure.
PRECISE DIAL ADJUSTMENT ” With Our Precise Elevation And Windage Dial, A Few Clicks Is All It Takes To Make The Necessary Adjustments Without Losing Sight Of The Target.
About the QILU Brand
QILU is a premium manufacturer for weapon scopes, optics, mounting solutions, and other accessories used for guns like rifles and long guns. They style and build their products choosing materials which are durable and long lasting. This includes the QILU 2.5-10×40 Tactical Rifle Scope Red & Green by QILU. For more shooting goods, visit their site.
Glass Info
Rifle scopes enable you to specifically aim a rifle at different targets by aligning your eye with the target over a range. They accomplish this through magnification using a series of lenses inside the scope. The scope’s alignment can be adapted to account for separate environmental things like wind and elevation to make up for bullet drop.
The scope’s function is to understand precisely where the bullet will land based on the sight picture you are seeing through the optic as you line up the scope’s crosshair or reticle with the intended point of impact. Most modern rifle optics have around eleven parts which are arranged inside and externally on the scope body. These parts include the rifle scope’s body, lenses, windage and elevation dials or turrets, focus rings, and other components. Learn about the eleven parts of rifle optics.
Rifle Optic Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The style of focal plane a scope has determines where the reticle or crosshair lies relative to the scopes magnification. It actually implies the reticle is situated behind or before the magnifying lens of the optic. Considering the best kind of rifle glass depends on what type of shooting you intend on undertaking.
First Focal Plane Scope Facts
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These styles of scopes are helpful for:
- Quick acquisition, far away types of shooting
- Shooting circumstances where estimations are minimal
- Experienced shooters who have an idea for their target “hold over” and “lead” relationships for their weapon
- Shooters who don’t mind the reticle is bigger and requires more visual eyesight room than a SFP reticle
About Second Focal Plane Scopes
Second focal plane optics (SFP) come with the reticle to the rear of 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.
- Far away styles of shooting where shooters have more time to make ballistic calculations
- Shooting where most shots occur within shorter proximities and ranges
- Shooters who want a clearer optic sight picture with less space used up by the enlarged FFP reticle
Magnification for Rifle Optics
The measure of scope magnification you need on your scope depends on the type of shooting you want to do. Pretty much every kind of rifle scope gives some amount of magnification. The volume of magnification a scope gives is established by the dimension, thickness, and curves of the lenses within the rifle scope. The magnifying level of the scope is the “power” of the opic. This signifies what the shooter is looking at through the scope is magnified times the power element of what can usually be seen by human eyes.
About Fixed Power Lens Rifle Optics
A single power rifle optic or scope uses a magnification number designator like 4×32. This suggests the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of scope can not adjust since it is a fixed power scope.
About Variable Power Lens Scopes
Variable power rifle scopes can be adjusted between magnification levels. These types of scopes will note the magnification level in a format like 2-10×32. These numbers mean the zoom of the scope could be changed in between 2x and 10x power. This always utilizes the powers in-between 2 and 10. The power manipulation is achieved by making use of the power ring component of the scope near the back of the scope by the eye bell.
Power and Range
Here are some recommended scope power levels and the distances where they can be efficiently used. Consider that high magnification optics will not be as practical as lower magnification level optics and scopes since excessive zoom can be a bad thing. The exact same idea goes for longer distances where the shooter needs to have adequate power to see where to best aim the rifle at the target.
Glass Lens Coating
All present day rifle scope lenses are covered. Lens coating is a crucial element of a shooting platform when thinking about high end rifle optics and scope setups.
About Lens Coatings – HD Versus ED
Some rifle glass producers even use “HD” or high-definition lens finishes that use various processes, rare earth compounds, elements, and polarizations to extract various colors and viewable definition through the lens. This HD finish is typically used with more costly high density glass which decreases light’s capability to refract through the lens glass. Some scope makers use “HD” to describe “ED” suggesting extra-low dispersion glass. ED handles how certain colors are presented on the chromatic spectrum and the chromatic aberration or deviance which is similarly called color distortion or fringing. Chromatic aberration is often visible over objects with defined outlines as light hits the item from particular angles.
Single Scope Lens Finishing Versus Multi-Coating
Different optic lenses can also have various coatings used to them. All lenses typically have at least some type of treatment or finishing used to them before being used in a rifle scope or optic.
Single layered lenses have a treatment applied to them which is generally a protective and boosting multi-purpose treatment. 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 layered lens depends on the scope producer and how much money you spent paying for it. The scope’s maker and cost are indicators of the lens quality.
Some scope producers likewise make it a point to specify if their optic lenses are coated or “multi” coated. This suggests the lens has numerous treatments applied to them. If a lens receives numerous treatments, it can prove that a producer is taking numerous actions to fight different natural aspects like an anti-glare finish, a scratch resistant anti-abrasion covering, followed by a hydrophilic finish. This additionally doesn’t always indicate the multi-coated lens will perform much better than a single coated lens. Being “much better” depends upon the manufacturer’s lens treatment solutions and the quality of components used in constructing the rifle scope.
Optic Lens Hydrophobic Finish
Water on an optical lens does not improve keeping a clear sight picture through a scope whatsoever. Many top of the line or high-end optic makers will coat their lenses with a hydrophobic or hydrophilic covering. The Steiner Optics Nano-Protection is a fine example of this sort of treatment. It deals with the surface of the Steiner scope lens so the water particles can not bind to it or develop surface tension. The outcome is that the water beads roll off of the scope to preserve a clear, water free sight picture.
Glass Mounting Options
Mounting options for scopes come in a couple of options. There are the basic scope rings which are individually installed to the optic and one-piece mounts which cradle the scope. These various types of mounts also typically come in quick release versions which use toss levers which permit rifle operators to quickly mount and remove the glass.
Hex Key Rifle Glass Ring Mounts
Basic, clamp-on type mounting optic rings use hex head screws to position to the flattop style Picatinny scope mount rails on the tops of rifles. These forms of scope mounts use double detached rings to support the scope, and are usually constructed from 7075 T6 billet aluminum which are created for far away accuracy shooting. This form of scope mount is great for rifles which need to have a durable, unfailing mount which will not shift regardless of how much the scope is moved or abuse the rifle takes. These are the type of mounts you should get for a specialized scope setup on a long distance hunting or sniper competition rifle that will hardly ever need to be modified or recalibrated. Blue 242 Loctite threadlocker can also be used on screws to stop the hex screw threads from wiggling out after they are installed securely in position. An example of these rings are the 30mm style made by Vortex Optics. The set normally costs around $200 USD
Quick-Release Cantilever Glass Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to quickly take off a scope from a rifle and reattach it to a different rifle. Multiple scopes can also be swapped out if they all use a complementary style mount. The quick detach mount style is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach solidly to a flat top design Picatinny rail. This lets the scope to be sighted in while on the rifle, removed from the rifle, and remounted back on the rifle while retaining accuracy. These kinds of mounts are useful and beneficial for rifles which are carried a lot, to remove the scope from the rifle for protection, or for sight systems which are employed 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
Rifle Scope Tube Sealing and Gas Purging
Moisture inside your rifle scope can mess up a day of shooting and your expensive optic by triggering fogging and producing residue inside of the scope tube. A lot of scopes avoid moisture from getting in the scope tube with a system of sealing O-rings which are waterproof.
Scope Gas Purging
Another component of preventing the buildup of moisture inside of the rifle optic tube is filling the tube with a gas like nitrogen. Because this area is already taken up by the gas, the glass is less affected by temperature level alterations and pressure distinctions from the external environment which might possibly enable water vapor to leak in around the seals to fill the void which would otherwise be there. These are good qualities of a decent rifle scope to seek out.
