Description
Rifle Scope Product Details
Burris 626004 Anti-Reflection Device
Rifle Scope Product Features
Fits AR-536 tactical prism sights
Reduces lens glare
Provides greater concealment to prevent detection
About the Burris Optics Brand
Burris Optics is a premium maker for firearm scopes, optics, mounts, and other add-ons used for guns like rifles and long guns. They create and supply their scopes and related products making the most of materials which are long lasting and resilient. This includes the Burris 626004 Anti-Reflection Device by Burris Optics. For additional shooting goods, visit their site.
What You Need to Know About Rifle Scopes
Rifle scopes allow you to precisely 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 within the scope. The scope’s positioning can be adapted for the consideration of many ecological factors like wind speed and elevation increases to make up for bullet drop.
The scope’s function is to 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 target. Most contemporary rifle scopes and optics have about 11 parts which are arranged within and externally on the optic. These scope parts include the rifle scope’s body, lenses, windage dials, focus rings, and other parts. Learn about the eleven parts of optics.
Rifle Optic Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The form of focal plane an optic has determines where the reticle or crosshair lies in regard to the optic’s magnifying adjustments. It literally means the reticle is located behind or in front of the magnification lens of the optic. Choosing the most reliable form of rifle glass is based upon what sort of shooting you intend on doing.
First Focal Plane Scope Info
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These types of scopes are helpful for:
- Quick acquisition, long distance types of shooting
- Shooting scenarios where calculations are minimal
- Experienced shooters who know their aim point “hold over” and “lead” equations for their rifles
- Shooters who do not mind the reticle is bigger and uses up more visual eyesight room than a SFP reticle
Second Focal Plane Glass Details
Second focal plane optics (SFP) feature the reticle behind the magnification lens. This causes the reticle to remain at the same overall size relative to the amount of magnification being used. The effect is that the reticle dimensions adapt based on the zoom chosen to shoot over longer distances given that the reticle markings represent different increments which fluctuate with the zoom. In the FFP example with the SFP optic, the 5x “zoom” one hundred yard tick reticle measurement would be 1/5th of the non “zoom” tick. These sorts of glass are beneficial for:
- Long distance forms of shooting where shooters have increased time to make ballistic computations
- Shooting where most shots take place within shorter proximities and ranges
- Shooters who choose a clearer optic sight picture without room taken up by the larger size FFP reticle
About Scope Zoom
The amount of zoom a scope provides is figured out by the size, density, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Info About Fixed Single Power Lens Rifle Scopes
A single power rifle scope will have a magnification number designator like 4×32. This means the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of scope can not change since it is a fixed power scope.
Variable Power Lens Optic Details
Variable power rifle scopes have adjustable power. These types of scopes will list the zoom amount in a configuration like 2-10×32. These numbers suggest the magnification of the scope can be adjusted between 2x and 10x power. This always utilizes the powers in-between 2 and 10. The power manipulation is accomplished by applying the power ring part of the scope near the rear of the scope by the eye bell.
Rifle Glass Power Level and Ranges
Here are some suggested scope power settings and the distances where they could be effectively used. Highly magnified optics will not be as beneficial as lower magnification level rifle scope glass considering too much zoom can be a negative aspect depending on your shooting distance. The very same idea goes for longer distances where the shooter needs enough power to see where to properly aim the rifle.
Lens Finish for Rifle Optics
All top teir rifle scope lenses are covered. Lens covering is a crucial aspect of a rifle system when thinking about high end rifle optics and scope equipment.
HD Versus ED Lens Coatings
Some scope producers also use “HD” or high-definition lens coatings which use various processes, aspects, chemicals, and polarizations to draw out a wide range of colors and viewable definition through the lens. Some scope producers use “HD” to refer to “ED” meaning extra-low dispersion glass.
Glass Lens Single Coating Versus Multi-Coating
Various optic lenses can also have various coatings applied to them. All lenses usually have at least some type of treatment or finishing used to them prior to being used in a rifle scope or optic.
Single covered lenses have a treatment applied to them which is normally a protective and improving multi-purpose treatment. This lens treatment can preserve the lens from scratches while reducing 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 manufacturer and the amount you spent for it. Both are indicators of the lens quality.
Some scope manufacturers also make it a point to specify if their optic lenses are layered or “multi” covered. Being “better” depends on the manufacturer’s lens treatment technology and the quality of materials used in constructing the rifle scope.
Anti-water Coating for Rifle Optics
Water on a scope lens doesn’t improve keeping a clear sight picture through a scope at all. Lots of top of the line or high-end optic makers will coat their lenses with a hydrophobic or hydrophilic finishing. The Steiner Optics Nano-Protection is a good example of this sort of treatment. It treats the exterior of the Steiner scope lens so the water molecules can not bind to it or produce surface tension. The outcome is that the water beads roll off of the scope to preserve a clear, water free sight picture.
Options for Mounting Optics on Firearms
Mounting solutions for scopes come in a few 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 usually are made in quick release variations which use throw levers which allow rifle shooters to rapidly install and dismount the scopes.
Rifle Optic Mounting Solutions with Hex Key Rings
Basic, clamp-on style mounting scope rings use hex head screws to position to the flattop style Picatinny scope mount rails on rifles. These varieties of scope mounts use two detached rings to support the optic, and are made from 7075 T6 billet aluminum or similar materials which are designed for long distance accuracy shooting. This form of scope mount is good for rifles which require a durable, unfailing mount which will not shift no matter just how much the scope is moved about or abuse the rifle takes. These are the style of mounts you want for a dedicated scope setup on a long distance hunting or competition long gun which will pretty much never need to be changed or recalibrated. Blue 242 Loctite threadlocker can additionally be used on the mount screws to protect against the hex screws from backing out after they are mounted tightly in place. An example of these rings are the 30mm style from the Vortex Optics company. The set typically costs around $200 USD
Rifle Glass Mounting Solutions with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly connect and detach a scope from a rifle. If they all use a similar style mount, multiple scopes can often be switched out in the field. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach nicely to a flat top type Picatinny rail. This allows the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while preserving accuracy. These types of mounts come in convenient for shooting platforms which are transported a lot, to remove the optic from the rifle for protection, or for optics which are used between several rifles. An example of this mount style is the 30mm mount from Vortex Optics. It usually costs around $250 USD
Sealing and Gas Purging for Scope Tubes
Wetness inside your rifle optic can mess up a day on the range and your highly-priced optic by triggering fogging and producing residue within the scope’s tube. Most scopes prevent humidity from getting in the optical tube with a system of sealing O-rings which are water resistant. Generally, these water-resistant optics can be submerged within 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be sufficient moisture avoidance for common use rifles, unless you intend on taking your rifle on a boat and are concerned about the optic still functioning if it goes over the side and you can still rescue the firearm.
Rifle Scope Gas Purging
Another element of avoiding the buildup of wetness within the rifle scope’s tube is filling the tube with a gas like nitrogen. Given that this space is currently taken up by the gas, the glass is less influenced by temp alterations and pressure differences from the outdoor environment which may possibly permit water vapor to leak in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a good rifle scope to look for.
