Description
Rifle Scope Product Details
Osprey 4-16×50 mm Riflescope with Illuminated Mil Dot Glass Reticle
Rifle Scope Product Features
Length: 13.82-Inch, Weight: 23.4-Ounces, Tube: 30mm
Objective: 50mm, eye relief: 5.9 to 3.14-Inch, MOA: 1/8-Inch
Reticle: rangefinder/mildot, magnification: 4-16, illumination: red, blue, green
OSPREY GLOBAL TACTICAL 4-16×50 MDG / IRF RIFLE SCOPE
CLEAR. RUGGED. PRECISE.
Engineered for peak results. Get your eyes on your target first with undeniable accuracy. We use fully multi-coated Hoya glass with audible turret clicks. BDC available/5 inch sun shade.
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
4-16×50 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: 4-16
Objective: 50 mm
Tube Diameter: 30 mm
Eye Relief: 5.9″ ” 3.14″
Shock Proof: Shock-resistant; recoil tested at 50 BMG parameters (1000g/0.4-0.8 ms)
Length: 13.82 inches
Weight: 23.4 ounces
MOA: 1/8″
Battery: One (1) CR2032
Reticle: Mildot/Rangefinder
Illumination: Red; blue; green
Finish: Matte Black
OSPREY 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 company for rifle scopes, optics, mounts, and other components used for firearms like rifles and long guns. They style and supply their mounts and related products using materials which are long lasting and durable. This includes the Osprey 4-16×50 mm Riflescope with Illuminated Mil Dot Glass Reticle by Osprey Global. For more shooting products, visit their website.
Scope Facts
Rifle scopes permit you to specifically aim a rifle at different targets by lining up your eye with the target at range. They accomplish this through magnifying the target by making use of a series of lenses inside the scope. The scope’s positioning can be adjusted for the consideration of varied natural factors like wind speed and elevation to make up for bullet drop.
The scope’s purpose is to help the shooter understand exactly where the bullet will land based on the sight picture you are viewing with the optic as you line up the scope’s crosshair or reticle with the intended target. A lot of modern rifle scopes and optics have around 11 parts which are found internally and on the exterior of the optic. These scope parts include the rifle scope’s body, lenses, modification turrets or dials, objective focus rings, and other parts. Learn about the eleven parts of rifle glass.
Rifle Glass Types
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The style of focal plane a scope has determines where the reticle or crosshair lies relative to the scopes magnifying adjustments. It literally suggests the reticle is behind or before the magnification lens of the scope. Deciding on the very best type of rifle optic is dependent on what variety of shooting or hunting you plan on doing.
About First Focal Plane Scopes
First focal plane scopes (FFP) feature the reticle before the magnifying lens. This causes the reticle to increase in size based on the level of zoom being used. The result is that the reticle measurements are the same at the enhanced range as they are at the non amplified range. As an example, one tick on a mil-dot reticle at 100 yards without having “zoom” is still the corresponding tick at one hundred yards using 5x “zoom”. These types of scopes work for:
- Quick acquisition, long distance kinds of shooting
- Shooting situations where calculations are marginal
- Experienced shooters who recognize their target “hold over” and “lead” ratios for their firearms
- Shooters who do not mind the reticle is bigger and uses up more visual eyesight room than a SFP reticle
Second Focal Plane Optics
Second focal plane scopes (SFP) feature the reticle behind the magnifying lens. This causes the reticle to remain at the same size in connection with the amount of magnification being used. The result is that the reticle dimensions shift based upon the zoom chosen to shoot over greater distances since the markings present different increments which change with the magnification level. In the FFP example with the SFP glass, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick reticle measurement. These styles of optics are useful for:
- Far away kinds of shooting where shooters have extra time to make ballistic computations
- Shooting where most of the shots happen within shorter distances and ranges
- Shooters who desire a clearer optic picture without area used up by the enlarged FFP reticle
Ins and Outs of Glass Magnification
The amount of magnification a scope provides is identified by the size, density, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
Fixed Single Power Lens Rifle Scopes
A single power rifle optic will have a zoom number designator like 4×32. This means the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of scope can not fluctuate considering that it is a fixed power optic.
About Adjustable Power Lens Rifle Scopes
Variable power rifle scopes have adjustable power. These types of scopes will list the zoom degree in a format such as 2-10×32. These numbers indicate the magnification of the scope can be changed in between 2x and 10x power. This also includes the power levels in-between 2 and 10. The power adjustment is achieved by applying the power ring component of the scope near the back of the scope by the eye bell piece.
Optic Power and Ranges
Here are some advised scope power levels and the distances where they can be effectively used. Remember that higher magnification scopes will not be as effective as lower magnification level glass because increased magnification can be a negative thing in certain situations. The exact same idea relates to longer distances where the shooter needs to have increased power to see where to properly aim the rifle.
Rifle Glass Lens Finish
All modern-day rifle scope and optic lenses are layered. Lens finishing is an essential element of a shooting platform when thinking about high end rifle optics and scope setups.
HD Versus ED Lenses
Some scope manufacturers likewise use “HD” or high-definition lens finishings which use various techniques, polarizations, chemicals, and components to draw out various colors and viewable quality through the lens. Some scope makers use “HD” to refer to “ED” meaning extra-low dispersion glass.
Glass Lens Single Covering Versus Multi-Coating
Different scope lenses can even have different coverings applied to them. All lenses generally have at least some type of treatment or finishing applied to them before being used in a rifle scope or optic assembly. This is due to the fact that the lens isn’t just a raw piece of glass. It becomes part of the carefully tuned optic. It must have a covering placed on it so that the lens will be efficiently usable in lots of kinds of environments, degrees of light (full light VS shade), and other shooting conditions.
This lens treatment can safeguard the lens from scratches while decreasing glare and other less useful things experienced in the shooting environment while sighting in with the scope. The quality of a single layered lens depends on the scope producer and how much you paid for it.
Some scope manufacturers also make it a point to define if their optic lenses are covered or “multi” coated. This suggests the lens has multiple treatments applied to the surfaces of the glass. If a lens gets several treatments, it can establish that a maker is taking multiple actions to fight different natural aspects like an anti-glare covering, a scratch resistant anti-abrasion finish, followed by a hydrophilic covering. This also doesn’t necessarily mean the multi-coated lens is better than a single covered lens. Being “better” hinges on the producer’s lens treatment solutions and the quality of glass used in building the rifle scope.
Anti-water Covering for Rifle Optics
Water on a scope lens does not help with retaining a clear sight picture through an optic at all. Many top of the line or high-end optic producers will coat their lenses with a hydrophilic or hydrophobic coating. The Steiner Optics Nano-Protection is a good example of this sort of treatment. It provides protection for the surface of the Steiner scope lens so the water molecules can not bind to it or develop surface tension. The outcome is that the water beads sheet off of the scope to keep a clear, water free sight picture.
Rifle Scope Mounting Choices
Mounting approaches for scopes can be found in a few choices. There are the basic scope rings which are individually mounted to the optic and one-piece scope mounts which cradle the scope. These various types of mounts also generally are made in quick release variations which use throw levers which permit rifle shooters to rapidly install and dismount the optics.
Rifle Optic Mounts with Hex Key Rings
Normal, clamp design mounting scope rings use hex head screws to mount to the flattop design Picatinny scope installation rails on rifles. These types of scope mounts use two different rings to support the optic, and are often made from 7075 T6 billet aluminum which is designed for long range precision shooting. This type of scope mount is perfect for rifles which need a durable, rock solid mount which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Rifle Scope Rings
These types of quick-release rifle scope mounts can be used to quickly attach and remove a scope from a rifle. Multiple scopes can also be swapped out if they all use a similar designed mount. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach securely to a flat top style Picatinny rail. This lets the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while keeping accuracy. These kinds of mounts come in beneficial for shooting platforms which are transferred a lot, to take off the optic from the rifle for protection, or for sight systems which are utilized between a number of rifles. An example of this mount style is the 30mm mount designed by Vortex Optics. It normally costs around $250 USD
Rifle Scope Tube Sealing and Gas Purging
Moisture inside your rifle scope can ruin a day of shooting and your expensive optic by bringing about fogging and developing residue inside of the scope tube. A lot of scopes avoid wetness from getting in the scope tube with a system of sealing O-rings which are water resistant.
Gas Purged Optic Tubes
Another component of preventing the buildup of wetness inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Because this space is currently occupied by the gas, the glass is less influenced by temp changes and pressure differences from the outdoor environment which may possibly allow water vapor to seep in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to look for.
