Description
Rifle Scope Accessory Product Details
OuRui Alloy Rifle Scope Laser Bubble Spirit Level for 30mm Ring Mount Holder Scope
Product specifications: Type: Scope Mounts & Accessories Ring Diameter: 20mm/25.4mm/30mm Material: Full Aluminum Alloy Thickness: 10mm Used On: Rifle Scope Lock: head screw Color: Matte Black Finish Package: OPP Bag
Rifle Scope Accessory Product Features
Made of aluminum alloy with black hard anodized
Attaches directly to weaver/picatinny dovetail to ensure bore and reticle alignment at a glance
Use the bubble level to ensure that the rifle is perfectly vertical during extreme-range shooting
It is quickly and easily to install and to mount anywhere on scope tube left or right side
About the OuRui Scope Maker
OuRui is a premium producer for long gun scopes, optics, mounts, and other accessories used for guns like rifles and long guns. They style and make their products by making the most of elements which are long lasting and resilient. This includes the OuRui Alloy Rifle Scope Laser Bubble Spirit Level for 30mm Ring Mount Holder Scope by OuRui. For more shooting items, visit their website.
Rifle Scope Details
Rifle scopes allow you to precisely align a rifle at different targets by aligning your eye with the target over a range. They accomplish this through magnification by utilizing a set of lenses inside the scope. The scope’s alignment can be adapted for the consideration of various natural aspects like wind and elevation increases to make up 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 optic 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 internally and outside of the scope. These parts include the rifle scope’s body, lenses, windage and elevation turrets or dials, objective focus rings, and other parts. Learn about the eleven parts of rifle optics.
About Rifle Scope Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Deciding on the optimal type of rifle optic depends on what type of shooting you plan to do.
About First Focal Plane Glass
First focal plane glass (FFP) come with the reticle in front of the magnifying lens. This causes the reticle to increase in size based upon the extent of magnification being used. The benefit is that the reticle measurements are the same at the magnified distance as they are at the non magnified distance. One tick on a mil-dot reticle at 100 yards without “zoom” is still the very same tick at 100 yards with 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, far away types of shooting
- Shooting situations where calculations are minimal
- Experienced shooters who understand their aim point “hold over” plus “lead” relationships for their firearm
- Shooters who do not mind the reticle is bigger and takes up more visual eyesight space than a SFP reticle
Info About Second Focal Plane Scopes
Second focal plane optics (SFP) come with the reticle behind the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick measurement.
- Far away styles of shooting where shooters have increased time to make ballistic calculations
- Shooting where most of the shots occur within much shorter ranges and proximities
- Shooters who select a clearer optic sight picture with less area taken up by the bigger FFP reticle
Zoom for Rifle Optics
The quantity of zoom a scope offers is identified by the diameter, density, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
About Fixed Power Lens Rifle Scopes
A single power rifle scope and optic uses 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 kind of optic can not change because it is a set power scope.
Adjustable Power Lens Glass
Variable power rifle scopes can be modified between magnified levels. The power modification is achieved using the power ring part of the scope near the back of the scope by the eye bell.
The Power Level and Range Correlation of Rifle Scopes
Here are some advised scope powers and the distances where they can be successfully used. High power rifle scope glass will not be as efficient as lower magnification optics due to the fact that too much zoom can be a negative aspect depending on your shooting distance. The same idea goes for extended distances where the shooter needs adequate power to see precisely where to best aim the rifle at the target.
Glass Lens Coating
All present day rifle optic lenses are coated. Lens finishing is a vital element of a shooting system when looking at high end rifle optics and scope setups.
HD Versus ED Lens Coatings
Some scope manufacturers also use “HD” or high-definition lense coverings which take advantage of various procedures, chemicals, elements, and polarizations to enhance various colors and viewable target visibility through lenses. This high-def finish is frequently used with increased density lens glass which decreases light’s capability to refract by means of the lens glass. Some scope corporations use “HD” to refer to “ED” meaning extra-low dispersion glass. ED deals with how colors are represented on the chroma spectrum and the chromatic difference or aberration which is also called color distortion or fringing. Chromatic aberration can be visible around items with hard outlines as light hits the item from specific angles.
Single Coating Versus Multi-Coating for Rifle Glass
Different optic lenses can also have different finishes used to them. All lenses usually have at least some type of treatment or coating applied to them before they are used in a rifle scope or optic.
This lens treatment can protect the lens from scratches while decreasing glare and other less beneficial things experienced in the shooting environment while sighting in with the scope. The quality of a single layered lens depends on the scope manufacturer and how much you paid for it.
Some scope producers also make it a point to define if their optic lenses are coated or “multi” covered. This suggests the lens has had multiple treatments applied to the surfaces of the glass. If a lens gets several treatments, it can prove that a company is taking multiple steps to combat different natural aspects like an anti-glare coating, a scratch resistant anti-abrasion finish, followed by a hydrophilic coating. This additionally does not always mean the multi-coated lens will perform much better than a single layered lens. Being “much better” depends upon the maker’s lens treatment techniques and the quality of components used in constructing the rifle scope.
Anti-water Finish for Scopes
Water on an optic’s lens doesn’t improve preserving a clear sight picture through a scope whatsoever. Many top of the line and high-end optic manufacturers will coat their lenses with a hydrophilic or hydrophobic finishing. The Steiner Optics Nano-Protection is a fine example of this type of treatment. It treats the surface of the Steiner scope lens so the H2O 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.
Choices for Mounting Scopes on Long Guns
Mounting approaches for scopes can be found in a couple of choices. There are the standard scope rings which are separately installed to the scope and one-piece scope mounts which cradle the scope. These various types of mounts also generally can be found in quick release variations which use throw levers which permit rifle operators to rapidly install and dismount the scope.
Glass Mounts with Hex Key Rings
Standard, clamp-on type mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mounting rails on the tops of rifles. These styles of scope mounts use a pair of independent rings to support the optic, and are normally made from 7075 T6 billet aluminum or similar materials which are made for long distance accuracy shooting. This form of scope mount is ideal for rifles which need to have a long lasting, rock solid mount which will not shift regardless of just how much the scope is moved about or jarring the rifle takes. These are the design of mounts you want for a faithful scope setup on a far away hunting or tournament firearm that will almost never need to be altered or adjusted. Blue 242 Loctite threadlocker can also be used on the mount’s screws to stop the hex screws from wiggling out after they are mounted tightly in position. An example of these mounting rings are the 30mm style made by Vortex Optics. The set generally costs around $200 USD
Glass Mounts with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly remove a scope and attach it to a different rifle. Multiple scopes can even be swapped out if they all use a compatible design mount. These types of mounts come in handy for rifles which are carried a lot, to remove the optic from the rifle for protection, or for scopes which are used between multiple rifles.
Sealing and Gas Purging for Scope Tubes
Wetness inside your rifle glass can mess up a day on the range and your pricey optic by inducing fogging and making residue inside of the scope’s tube. Many optics protect against moisture from entering the scope tube with a system of sealing O-rings which are water resistant. Typically, these water resistant optics can be immersed within 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be ample moisture content avoidance for standard use rifles, unless you plan on taking your rifle aboard a watercraft and are concerned about the optic still functioning if it is submerged in water and you can still retrieve the firearm.
Optic 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. Since this space is already taken up by the gas, the scope is less influenced by condition shifts and pressure variations from the external environment which might 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 good rifle scope to seek out.
