Description
Rifle Scope Product Details
Osprey Global Elite Series 4-16×56 Mil Dot Glass Etched Lit Reticle
Longest eye-relief of any scope in it’s class. Quick acquisition, hoya glass in all settings, 56 mm objective lens, three color lit reticle, rings and dust covers included.
Rifle Scope Product Features
Magnification: 4-16
Tube diameter (mm): 30mm
Elevation/windage adjustment: 35 inch
Field of view (feet at 100 yds): 26.3-6.6
Parallax (yards): 10Yds
About the Osprey Global Manufacturer
Osprey Global is a premium manufacturer for weapon scopes, optics, mounting solutions, and other accessories used for guns like rifles and long guns. They design and supply their scopes, mounts, and related products by making the most of materials which are long lasting and resilient. This includes the Osprey Global Elite Series 4-16×56 Mil Dot Glass Etched Lit Reticle by Osprey Global. For additional shooting products, visit their site.
What You Need to Know About Optics
Rifle scopes enable you to exactly aim a rifle at different targets by aligning your eye with the target over a range. They do this through magnifying the target using a set of lenses within the scope. The scope’s alignment can be adapted for consideration of many natural aspects like wind and elevation increases or decreases to make up for bullet drop.
The scope’s purpose is to help shooters understand exactly where the bullet will land based on the sight picture you are seeing with the scope as you line up the scope’s crosshair or reticle with the intended point of impact. A lot of contemporary rifle scopes have about 11 parts which are found inside and outside of the scope. These optic pieces include the rifle scope’s body, lenses, modification turrets, objective focus rings, and other elements. See all eleven parts of scopes.
About Rifle Scope Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The style of focal plane an optic has determines where the reticle or crosshair lies in regard to the scopes magnification. It simply suggests the reticle is located behind or in front of the magnifying lens of the optic. Considering the most suitable form of rifle scope depends upon what form of hunting or shooting you intend on doing.
Info About First Focal Plane Optics
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These types of scopes are beneficial for:
- Quick acquisition, far away kinds of shooting
- Shooting situations where computations are low
- Experienced shooters who know their aim point “hold over” as well as “lead” equations for their long guns
- Shooters who do not mind the reticle is enlarged and requires more visual sight area than a SFP reticle
Second Focal Plane Glass Facts
Second focal plane glass (SFP) include the reticle behind the magnification lens. This causes the reticle to remain at the exact same overall size in relation to the quantity of zoom being used. The result is that the reticle measurements change based upon the magnification used to shoot over greater distances considering the reticle measurements represent different increments which can vary with the zoom. In the FFP illustration with the SFP scope, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick measurement. These kinds of scopes work for:
- Far away kinds of shooting where shooters have increased time to make ballistic estimations
- Shooting where most of the shots take place within much shorter proximities and ranges
- Shooters who select a clearer optic sight picture without room taken up by the larger size FFP reticle
Glass Magnification
The amount of magnification a scope offers is identified by the diameter, thickness, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
Single Power Lens Scope Info
A single power rifle optic will have a zoom number designator like 4×32. This indicates the magnification power of the scope is 4x power and the objective lens is 32mm. The zoom of this kind of scope can not fluctuate since it is a set power scope.
Info on Adjustable Power Lens Glass
Variable power rifle scopes can be tweaked between magnified levels. The power adjustment is accomplished by the power ring part of the scope near the rear of the scope by the eye bell.
Power and Range Correlations
Here are some recommended scope power settings and the ranges where they can be efficiently used. Highly magnified scopes will not be as effective as lower magnification level scopes given that too much magnification can be a negative aspect depending on your shooting distance. The very same idea goes for longer ranges where the shooter needs to have adequate power to see exactly where to best aim the rifle.
About Rifle Glass Lens Coverings
All current rifle optic lenses are layered. Lens coating is a crucial aspect of a rifle when thinking about high end rifle optics and scope equipment.
HD Versus ED Lenses
Some scope producers also use “HD” or high-definition lense finishes which make the most of various processes, polarizations, components, and chemicals to extract numerous color ranges and viewable definition through the lens. This high-definition coating is normally used with higher density lens glass which drops light’s opportunity to refract by means of the lens glass. Some scope suppliers use “HD” to describe “ED” suggesting extra-low dispersion glass. ED handles how certain colors are represented on the chromatic spectrum and the chromatic deviance or aberration which is similarly called color distortion or fringing. Chromatic aberration can be obvious over things with well defined shapes as light hits the object from particular angles.
Single Covering Versus Multi-Coating for Optics
Various optic lenses can also have various finishings used to them. All lenses usually have at least some type of treatment or covering applied to them before being used in a rifle scope or optic.
Single layered lenses have a treatment applied to them which is usually a protective and boosting multi-purpose treatment. This lens treatment can protect the lens from scratches while lowering glare and other less useful things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends on the scope company and how much money you spent for it. Both the make and cost are indications of the lens quality.
Some scope producers likewise make it a point to specify if their optic lenses are coated or “multi” coated. This implies the lens has multiple treatments applied to the surfaces. If a lens receives several treatments, it can indicate that a manufacturer is taking several actions to combat different environmental elements like an anti-glare finish, a scratch resistant anti-abrasion finish, followed by a hydrophilic coating. This additionally does not always suggest the multi-coated lens is much better than a single covered lens. Being “better” is dependent on the producer’s lens treatment solutions and the quality of glass used in creating the rifle scope.
About Hydrophobic Finish
Water on a scope lens doesn’t improve keeping a clear sight picture through a scope in any way. Many top of the line or high-end optic manufacturers will coat their lenses with a hydrophilic or hydrophobic finish. The Steiner Optics Nano-Protection is a fine example of this kind of treatment. It provides protection for the exterior of the Steiner glass lens so the water molecules can not bind to it or develop surface tension. The outcome is that the water beads slide off of the scope to maintain a clear, water free sight picture.
Alternatives for Mounting Rifle Scopes on Long Guns
Installing options for scopes are available in a couple of choices. There are the standard scope rings which are separately mounted to the optic and one-piece mounts which cradle the scope. These different types of mounts also typically come in quick release variations which use toss levers which permit rifle shooters to quickly mount and remove the scopes.
Rifle Glass Mounting Solutions with Hex Key Rings
Standard, clamp design mounting scope rings use hex head screws to mount to the flattop design Picatinny scope mount rails on rifles. These types of scope mounts use a couple of different rings to support the optic, and are often made from 7075 T6 billet aluminum which are created for long range accuracy shooting. This type of scope install is fine for rifles which need a long lasting, rock solid mounting solution which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Optic Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to rapidly remove a scope from a rifle and reattach it to a different rifle. Several scopes can also be swapped out if they all use a similar style mount. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten tightly to a flat top style Picatinny rail. This enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while keeping accuracy. These kinds of mounts are useful and handy for shooting platforms which are moved around a lot, to take off the glass from the rifle for protection, or for optics which are used in between several rifles. An example of this mount style is the 30mm mount from the Vortex Optics manufacturer. It usually costs around $250 USD
Sealing and Gas Purging for Glass Tubes
Moisture inside your rifle optic can wreck a day of shooting and your expensive optic by inducing fogging and making residue inside of the scope’s tube. Most scopes prevent moisture from going into the optical tube with a series of sealing O-rings which are waterproof. Normally, these scopes can be submerged within 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be more than enough wetness prevention for conventional use rifles, unless you anticipate taking your rifle on boats and are worried about the scope still performing if it goes over the side and you can still rescue the rifle.
Rifle Glass Gas Purging
Another component of avoiding the accumulation of moisture inside of the rifle optic tube is filling the tube with a gas like nitrogen. Because this area is currently taken up by the gas, the optic is less altered by temperature shifts and pressure differences from the outdoor environment which may potentially enable water vapor to seep in around the seals to fill the void which would otherwise exist. These are good qualities of a good rifle scope to look for.
