Description
Rifle Scope Product Details
Osprey Global Tactical 10-40X50 Rifle Scope with Mil Dot Reticle
Rifle Scope Product Features
Length: 14.625-Inch, weight: 27.8-Ounce, tube: 30mm
Objective: 56mm, eye relief: 7.09 to 3.54-Inch, MOA: 1/4
Dust covers and ring mounts included, optional 4-Inch 56mm sunshade available
Magnification: 5-30, reticle: Mil-Dot, illuminated Mil-Dot glass reticle (red, green, and blue illumination)
Fog-proof, shock-proof and water-proof
OSPREY GLOBAL TACTICAL 10-40×50 MDG/IRF RIFLE SCOPE
CLEAR. RUGGED. PRECISE.
Designed for long range shooting with a generous eye relief. Epoxy is used on all Osprey tactical scopes to ensure they handle the larger caliber rifles. Be ready for your next hunt or competition with this exceptional scope. BDC available / 4 inch sun shades.
SCOPE HIGHLIGHTS:
Imported 3M epoxy and hermetic grease from the United States
Optical glass from Hoya of Japan
Spin centered for balance
Anti-reflective paint applied and light stops added to reduce reflections and provide high-contrast image
10-40×50 MDG/IRF SPECIFICATIONS:
Fog Proof: Tested at 20 degrees C for thirty minutes and removed to ambient (scope must completely clear in 2 minutes)
Waterproof: Tested at 25 cm/40 degrees C for three minutes
Magnification: 10-40
Objective: 50 mm
Tube Diameter: 30 mm
Eye Relief: 4.72″ ” 3.13″
Shock Proof: Shock-resistant; recoil tested at 50 BMG parameters (1000g/0.4-0.8 ms)
Length: 16.48 inches
Weight: 31.2 ounces
MOA: 1/8″
Battery: One (1) CR2032
Reticle: Mildot/Rangefinder
Illumination: Red; blue; green
Finish: Matte Black
OSPREY GLOBAL TACTICAL SCOPES:
Tactical 10-40×50 IRF/MDG Tacical 4-16×50 IRF/MDG Tactical 6-24-x50 IRF/MDG Tactical 5-30×56 MDG
Length: 16.48 inches 13.82 inches 15.16 inches 14.625 inches
Finish: Matte black Matte black Matte black Matte black
Weight: 31.2 ounces 23.4 ounces 28.7 ounces 27.8 ounces
Tube Diameter: 30 mm 30 mm 30 mm 30 mm
Illumination: Red; blue; green Red; blue; green Red; blue; green Red; blue; green
Objective: 50 mm 50 mm 50 mm 56 mm
Reticle: Rangefinder / Mildot Rangefinder / Mildot Rangefinder / Mildot Mildot
Eye Relief: 4.72″ ” 3.13″ 5.9″ ” 3.14″ 5.51″ ” 3.14″ 7.09″ ” 3.54″
MOA: 1/8″ 1/8″ 1/8″ 1/4″
Magnification: 10-40 4-16 6-24 5-30
About the Osprey Global Manufacturer
Osprey Global is a premium supplier for firearm scopes, optics, mounts, and other add-ons used for guns like rifles and long guns. They design and make their scopes and related products using building materials which are long lasting and durable. This includes the Osprey Global Tactical 10-40X50 Rifle Scope with Mil Dot Reticle by Osprey Global. For more shooting products, visit their website.
Info Rifle Scopes
Rifle scopes allow you to precisely align a rifle at various targets by aligning your eye with the target over a range. They accomplish this through magnification by making use of a set of lenses within the scope. The scope’s alignment can be dialed in to account for many ecological considerations like wind and elevation increases to account for bullet drop.
The scope’s purpose is to help the shooter understand precisely where the bullet will land based upon the sight picture you are viewing with the optic as you align the scope’s crosshair or reticle with the target. Most contemporary rifle optics have around 11 parts which are found internally and outside of the scope. These parts consist of the rifle scope’s body, lenses, modification turrets or dials, focus rings, and other components. Learn about the eleven parts of rifle optics.
About Optic Types
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The sort of focal plane an optic has identifies where the reticle or crosshair is located in relation to the scopes magnifying adjustments. It simply means the reticle is behind or ahead of the magnification lens of the scope. Picking out the most beneficial type of rifle optic is based upon what type of hunting or shooting you intend on undertaking.
First Focal Plane Scopes
Focal plane scopes (FFP) come with the reticle in front of the magnification lens. This triggers the reticle to increase in size based on the extent of zoom being used. The benefit is that the reticle measurements are the same at the enhanced distance as they are at the non amplified distance. For example, one tick on a mil-dot reticle at 100 yards without “zoom” is still the very same tick at one hundred yards using 5x “zoom”. These types of scopes work for:
- Quick acquisition, far away kinds of shooting
- Shooting situations where computations are minor
- Experienced shooters who recognize their aim point “hold over” and also “lead” equations for their long guns
- Shooters who do not mind the reticle is enlarged and requires more visual sight room than a SFP reticle
Second Focal Plane Scope Info
Second focal plane optics (SFP) feature the reticle to the rear of the zoom lens. This triggers the reticle to remain at the same overall size relative to the volume of zoom being used. The outcome is that the reticle dimensions adjust based on the zoom used to shoot over greater distances due to the fact that the reticle measurements represent different increments which fluctuate with the zoom level. In the FFP example with the SFP optic, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick reticle measurement. These particular types of glass are beneficial for:
- Far away kinds of shooting where shooters have more time to make ballistic computations
- Shooting where most shots occur within shorter distances and ranges
- Shooters who choose a clearer optic sight picture with less area used up by the bigger FFP reticle
Details on Rifle Optic Zoom
The quantity of scope zoom you need on your glass depends upon the sort of shooting you wish to do. Pretty much every kind of rifle optic offers some amount of zoom. The amount of zoom a scope offers is established by the diameter, thickness, and curvatures of the lenses inside of the rifle optic. The magnifying level of the scope is the “power” of the scope. This implies what the shooter is observing through the scope is magnified times the power factor of what can generally be seen by human eyes.
Single Power Lens Rifle Glass Details
A single power rifle scope uses a zoom number designator like 4×32. This suggests the zoom power of the scope is 4x power and the objective lens is 32mm. The zoom of this type of scope can not adjust given that it is set from the factory.
Info About Variable Power Lens Scopes
Variable power rifle scopes can be adjusted between magnification levels. These types of scopes will list the zoom degree in a configuration like 2-10×32. These numbers suggest the zoom of the scope could be adjusted in between 2x and 10x power. This also involves the power levels in-between 2 and 10. The power shift is accomplished by employing the power ring part of the scope near the rear of the scope by the eye bell piece.
The Power Level and Range of Rifle Optics
Here are some suggested scope power settings and the ranges where they could be successfully used. Highly magnified scopes will not be as useful as lower magnification level glass given that too much zoom can be a bad thing. The exact same idea relates to longer distances where the shooter needs sufficient power to see exactly where to properly aim the rifle at the target.
Details on Rifle Optic Lens Coating
All state-of-the-art rifle optic and scope lenses are covered. Lens coating is a significant element of a shooting platform when buying high end rifle optics and scope systems.
ED Versus HD Glass
Some rifle scope makers also use “HD” or high-definition lens coverings that employ different processes, aspects, polarizations, and chemical applications to draw out various color ranges and viewable definition through lenses. This HD coating is commonly used with increased density lens glass which reduces light’s opportunity to refract through the lens glass. Some scope suppliers use “HD” to describe “ED” meaning extra-low dispersion glass. ED deals with how colors are presented on the chromatic spectrum and the chromatic aberration which is similarly called color distortion or fringing. Chromatic aberration can be visible around things with hard shapes as light hits the item from particular angles.
What to Know About Single Finish Versus Multi-Coating
Different optic lenses can likewise have various finishings used to them. All lenses typically have at least some type of treatment or covering applied to them before being used in a rifle scope or optic.
This lens treatment can offer protection to the lens from scratches while minimizing 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 maker and how much you paid for it.
Some scope producers likewise make it a point to define if their optic lenses are covered or “multi” coated. This means the lens has had multiple treatments applied to the surfaces. If a lens gets several treatments, it can indicate that a maker is taking numerous steps to combat various environmental factors like an anti-glare finish, a scratch resistant anti-abrasion coating, followed by a hydrophilic covering. This additionally does not necessarily suggest the multi-coated lens will perform much better than a single layered lens. Being “much better” depends on the maker’s lens treatment solutions and the quality of components used in developing the rifle scope.
Anti-water Rifle Optic Lens Finish
Water on a lens does not help with keeping a clear sight picture through a scope at all. Lots of top of the line and high-end optic companies will coat their lenses with a hydrophobic or hydrophilic finish.
Alternatives for Installing Rifle Optics on Firearms
Mounting solutions for scopes are available in a couple of options. There are the standard scope rings which are individually installed to the scope 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 allow rifle operators to quickly install and remove the scope.
Scope Mounting Solutions with Hex Key Rings
Normal, clamp style 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 two separate rings to support the optic, and are often made from 7075 T6 billet aluminum which are created for long distance accuracy shooting. This type of scope mount is perfect for rifles which require a durable, rock solid mount which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Scope Rings
These types of quick-release rifle scope mounts can be used to rapidly detach a scope and attach it to a different rifle. Multiple scopes can even be swapped out if they all use a similar design mount. These types of mounts come in handy for long guns which are carried a lot, to swap out the optic from the rifle for protection, or for optics which are used in between multiple rifles or are situationally focused.
Rifle Optic Tube Sealing and Gas Purging
Moisture inside your rifle scope can mess up a day on the range and your costly optic by resulting in fogging and developing residue inside of the scope’s tube. Most scopes protect against humidity from getting in the optical tube with a system of sealing O-rings which are waterproof. Generally, these optics can be immersed underneath 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be plenty of moisture avoidance for conventional use rifles for hunting and sporting purposes, unless you anticipate taking your rifle boating and are concerned about the optic still working if it is submerged in water and you can still retrieve the rifle.
Rifle Scope Gas Purging
Another element of avoiding the accumulation of moisture within the rifle optic tube is filling the tube with a gas like nitrogen. Considering that this space is currently taken up by the gas, the glass is less impacted by temperature level alterations and pressure variations from the outdoor environment which could possibly allow 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 look for.
