Description
Rifle Scope Product Details
Burris Optics Riflescope 4-20x50mm
Rifle Scope Product Features
Sport type: Hunting
34 mm body tube
Elevation Adjustment total capability: 90 MOA; windage Adjustment: 55 MOA; Battery: CR2032
Package Weight : 1.383 kilograms
About the Burris Optics Manufacturer
Burris Optics is a premium maker for firearm scopes, optics, mounting solutions, and other components used for firearms like rifles and long guns. They innovate and build their mounts, scopes, and related products by applying building materials which are resilient and long lasting. This includes the Burris Optics Riflescope 4-20x50mm by Burris Optics. For more shooting products, visit their website.
Glass Facts
Rifle scopes allow you to exactly aim a rifle at different targets by aligning your eye with the target over a distance. They accomplish this through zoom by utilizing a series of lenses inside the scope. The scope’s positioning can be adapted for consideration of different ecological factors like wind speed and elevation increases or decreases to account for bullet drop.
The scope’s function is to help shooters understand precisely where the bullet will land based on the sight picture you are seeing with the optic as you line up the scope’s crosshair or reticle with the intended point of impact. Most modern rifle scopes and optics have about eleven parts which are located inside and externally on the scope. These scope parts include the rifle scope’s body, lenses, windage turrets, focus rings, and other components. See all eleven parts of a scope.
Rifle Scope Types
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The type of focal plane a scope has establishes where the reticle or crosshair lies in regard to the scopes magnification. It actually means the reticle is situated behind or ahead of the magnification lens of the optic. Selecting the most beneficial style of rifle optic depends on what form of hunting or shooting you anticipate undertaking.
About First Focal Plane Glass
First focal plane glass (FFP) come with the reticle in front of the zoom lens. This causes the reticle to increase in size based on the level of zoom being used. The outcome is that the reticle measurements are the same at the amplified range as they are at the non amplified distance. One tick on a mil-dot reticle at one hundred yards with no “zoom” is still the same tick at one hundred yards with 5x “zoom”. These types of scopes are useful for:
- Quick acquisition, far away types of shooting
- Shooting circumstances where computations are minimal
- Experienced shooters who have an idea for their target “hold over” as well as “lead” correlations for their firearms
- Shooters who don’t mind the reticle is enlarged and occupies more visual eyesight room than a SFP reticle
Second Focal Plane Optics
Second focal plane optics (SFP) feature the reticle behind the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Long distance types of shooting where shooters have more time to make ballistic calculations
- Shooting where most shots happen within shorter ranges and distances
- Shooters who want a clearer optic picture without space used up by the enlarged FFP reticle
Glass Magnification
The quantity of magnification a scope supplies is identified by the diameter, thickness, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Single Power Lens Glass Facts
A single power rifle optic and scope will have a zoom number designator like 4×32. This implies the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of optic can not change considering that it is fixed.
Adjustable Power Lens Rifle Optics
Variable power rifle scopes can be changed between magnification levels. It will note the zoom amount in a configuration such as 2-10×32. These numbers indicate the zoom of the scope can be adjusted in between 2x and 10x power. This also includes the powers in-between 2 and 10. The power manipulation is accomplished by working with the power ring component of the scope near the rear of the scope by the eye bell piece.
The Power Level and Range Correlation of Scopes
Here are some suggested scope power levels and the ranges where they may be successfully used. Remember that higher power optics will not be as practical as lower powered glass since excessive magnification can be a negative thing in certain situations. The same idea relates to longer ranges where the shooter needs sufficient power to see exactly where to best aim the rifle.
Glass Lens Finishing
All contemporary rifle optic lenses are layered. There are various types and qualities of glass finishes. Lens finishing can be an essential element of a rifle when thinking of high-end rifle optics and targeting units. The lenses are among the most critical components of the glass considering that they are what your eye sees through while sighting a rifle in on the target. The coating on the lenses protects the lens exterior and helps with anti glare capabilities from refracted sunrays and color discernibility.
HD Versus ED Lenses
Some scope producers also use “HD” or high-definition lens coverings which use different procedures, polarizations, chemicals, and components to draw out a wide range of colors and viewable definition through the lens. Some scope makers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Scope Lens Single Finishing Versus Multi-Coating
Different optic lenses can also have various coatings used to them. All lenses usually have at least some type of treatment or coating used to them before being 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 covered lens depends on the scope producer and how much you paid for it.
Some scope producers likewise make it a point to specify if their optic lenses are covered or “multi” covered. This suggests the lens has multiple treatments applied to the surfaces of the glass. If a lens receives several treatments, it can indicate that a manufacturer is taking several actions to combat various environmental aspects like an anti-glare finish, a scratch resistant anti-abrasion coating, followed by a hydrophilic finishing. This additionally does not always indicate the multi-coated lens will perform better than a single covered lens. Being “better” depends upon the manufacturer’s lens treatment solutions and the quality of materials used in creating the rifle optic.
Anti-water Lens Finishing
Water on an optic’s lens doesn’t help with preserving a clear sight picture through a scope at all. Numerous top of the line and premium optic manufacturers will coat their lenses with a hydrophobic or hydrophilic coating. The Steiner Optics Nano-Protection is a fine example of this kind of treatment. It deals with the surface of the Steiner glass lens so the water molecules can not bind to it or produce surface tension. The result is that the water beads move off of the scope to preserve a clear, water free sight picture.
Choices for Installing Rifle Optics on Long Guns
Mounting solutions for scopes can be found in a few choices. There are the basic scope rings which are separately mounted to the optic and one-piece scope mounts which cradle the scope. These different kinds of mounts also usually can be found in quick release variations which use throw levers which permit rifle shooters to rapidly mount and remove the glass.
Glass Mounting Solutions with Hex Key Rings
Basic, clamp design mounting optic rings use hex head screws to fix to the flattop design Picatinny scope mounting rails on rifles. These styles of scope mounts use two independent rings to support the scope, and are normally made from 7075 T6 billet aluminum or similar materials which are created for far away accuracy shooting. This form of scope mount is great for rifle systems which need to have a long lasting, hard use mount which will not shift despite how much the scope is moved or abuse the rifle takes. These are the design of mounts you should have for a specialized scope setup on a far away hunting or tournament firearm that will rarely need to be modified or adjusted. Blue 242 Loctite threadlocker can also be used to stop the hex screw threads from backing out after they are installed firmly in position. An example of these rings are the 30mm style from Vortex Optics. The set typically costs around $200 USD
Quick-Release Cantilever Optic Ring Mounts
These kinds of quick-release rifle scope mounts can be used to rapidly attach and take off a scope from a rifle. If they all use a comparable style mount, several scopes can also be swapped out. 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 allows the scope to be sighted in while on the rifle, removed from the rifle, and remounted while maintaining accuracy. These kinds of mounts are useful and convenient for shooting platforms which are hauled around a lot, to take off the scope from the rifle for protection, or for aiming systems which are employed in between numerous rifles. An example of this mount type is the 30mm mount from the Vortex Optics manufacturer. It generally costs around $250 USD
Optic Tube Sealing and Gas Purging
Wetness inside your rifle scope can mess up a day of shooting and your expensive optic by causing fogging and developing residue inside of the scope tube. The majority of scopes prevent moisture from entering the scope tube with a system of sealing O-rings which are water resistant.
Gas Purged Rifle Glass Tubes
Another element of avoiding the accumulation of wetness inside of the rifle scope tube is filling the tube with a gas like nitrogen. Since this area is currently occupied by the gas, the glass is less influenced by climate changes and pressure differences from the external environment which might possibly permit water vapor to leak in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a decent rifle scope to seek out.
