Description
Rifle Scope Product Details
ohhunt LR 2-16×50 SFIR Hunting Rifle Scope 30mm Tube Red Illumination Mil Dot Glass Etched Reticle with Mount 1/8 MOA Side Parallax Turrets Lock Reset
Rifle Scope Product Features
Magnification:2X-16XObjective Lens (mm):50Net Weight(g):861
Length(mm):334 with Sunshade 410One”piece Tube: YesEye Relief(inch): 3.39-4.02
Tube Diameter(mm/inch):30/1.18Eyepiece Field of view:20Field of View (ft@100yds) : 42.8ft @ 2x-9.6ft @ 16x
Click Value:1/8 MOADiopter Range: +/-Parallax Setting:10 to Inf
Max.Elevation/Windage(moa): 80 (Example: 50 MOA is roughly 25 MOA from center.)
About the ohhunt Manufacturer
ohhunt is a premium company for weapon scopes, optics, mounts, and other components used for firearms like rifles and long guns. They create and make their scopes and related products using elements which are long lasting and resilient. This includes the ohhunt LR 2-16×50 SFIR Hunting Rifle Scope 30mm Tube Red Illumination Mil Dot Glass Etched Reticle with Mount 1/8 MOA Side Parallax Turrets Lock Reset by ohhunt. For more 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 lining up your eye with the target over a range. They accomplish this through zoom by utilizing a set of lenses inside the scope. The scope’s positioning can be adjusted for the consideration of various natural elements like wind and elevation to make up for bullet drop.
The scope’s function is to help shooters understand exactly where the bullet will land based upon the sight picture you are seeing with the scope as you align the scope’s crosshair or reticle with the intended point of impact. Many modern rifle optics have about 11 parts which are located inside and externally on the optic. These parts include the rifle scope’s body, lenses, windage and elevation turrets, focus rings, and other components. See all eleven parts of a rifle optical system.
Rifle Scope Types
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The kind of focal plane an optic has determines where the reticle or crosshair lies relative to the optic’s zoom. It simply indicates the reticle is located behind or before the magnifying lens of the scope. Deciding on the most suitable style of rifle scope depends upon what form of hunting or shooting you plan on doing.
First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the magnifying lens. This triggers the reticle to increase in size based on the amount of magnification being used. The benefit is that the reticle measurements are the same at the magnified distance as they are at the non magnified range. One tick on a mil-dot reticle at one hundred yards with no “zoom” is still the identical tick at one hundred yards with 5x “zoom”. These kinds of scopes are practical for:
- Quick acquisition, long distance kinds of shooting
- Shooting scenarios where estimations are marginal
- Experienced shooters who recognize their aim point “hold over” and also “lead” relationships for their weapon
- Shooters who don’t mind the reticle is enlarged and takes up more visual eyesight space than a SFP reticle
Second Focal Plane Optics
Second focal plane scopes (SFP) come with the reticle behind the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick measurement.
- Far away styles of shooting where shooters have extra time to make ballistic calculations
- Shooting where most of the shots happen within much shorter ranges and spaces
- Shooters who prefer a clearer optic sight picture with less room taken up by the enlarged FFP reticle
Magnification for Rifle Scopes
The quantity of zoom a scope provides is figured out 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.
About Fixed Single Power Lens Rifle Glass
A single power rifle scope uses 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 kind of scope can not adjust since it is fixed.
Variable Power Lens Glass
Variable power rifle scopes can be adjusted between magnification increments. It will list the magnification level in a configuration like 2-10×32. These numbers indicate the magnification of the scope could be adjusted in between 2x and 10x power. This always utilizes the power levels in-between 2 and 10. The power adjustment is accomplished by working with the power ring part of the scope near the rear of the scope by the eye bell.
Rifle Glass Power Level and Range Correlation
Here are some advised scope power settings and the distances where they could be effectively used. High power glass will not be as efficient as lower magnification rifle scope glass given that too much magnification can be a bad thing. The very same idea goes for extended ranges where the shooter needs enough power to see where to properly aim the rifle.
Rifle Glass Lens Coating
All top of the line rifle scope lenses are layered. Lens finish can be a vital element of a rifle when buying high end rifle optics and scope systems.
ED Versus HD Rifle Optics
Some scope makers also use “HD” or high-definition lens coverings which use various processes, aspects, polarizations, and chemicals to draw out different colors and viewable quality through the lens. Some scope producers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Scope Lens Single Coating Versus Multi-Coating
Different optic lenses can also have different coatings applied to them. All lenses normally have at least some kind of treatment or finish applied to them prior to being used in a rifle scope or optic. This is since the lens isn’t just a raw piece of glass. It is part of the finely tuned optic. It requires a coating to be applied to it so that it will be efficiently usable in lots of types of environments, degrees of light (full VS shade), and other shooting conditions.
This lens treatment can protect the lens from scratches while decreasing glare and other less advantageous 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 makers also make it a point to specify if their optic lenses are layered or “multi” coated. Being “much better” depends on the producer’s lens treatment technology and the quality of products used in constructing the rifle scope.
Anti-water Lens Coverings
Water on a lens doesn’t assist with maintaining a clear sight picture through a scope at all. Many top of the line and high-end scope companies will coat their lenses with a hydrophilic or hydrophobic coating which is water repellent.
Rifle Optic Mounting Choices
Mounting approaches for scopes are available in a few options. There are the standard scope rings which are individually mounted to the scope and one-piece mounts which cradle the scope. These different types of mounts also usually come in quick release variations which use manual levers which allow rifle operators to rapidly mount and dismount the scopes.
Hex Key Optic Ring Mounting Solutions
Standard, clamp design mounting scope rings use hex head screws to fix to the flattop design Picatinny scope mounting rails on rifles. These kinds of scope mounts use a pair of individual rings to support the optic, and are normally made from 7075 T6 billet aluminum or similar materials which are designed for far away accuracy shooting. This form of scope mount is very good for rifles which require a long lasting, rock solid mount which will not change no matter just how much the scope is moved or jarring the rifle takes. These are the style of mounts you should get for a specialized scope system on a reach out and touch someone hunting or competition firearm that will rarely need to be modified or adjusted. Blue 242 Loctite threadlocker can also be used on the mount screws to protect against the hex screw threads from backing out after they are mounted tightly in position. An example of these rings are the 30mm style from the Vortex Optics brand. The set typically costs around $200 USD
Quick-Release Cantilever Rifle Glass Rings
These kinds of quick-release rifle scope mounts can be used to quickly take off a scope from a rifle and reattach it to a different rifle. If they all use a similar style mount, several scopes can often be swapped out. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten tightly 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 preserving accuracy. These types of mounts come in practical for shooting platforms which are shipped a lot, to remove the glass from the rifle for protection, or for scopes which are used in between numerous rifles. An example of this mount type is the 30mm mount from the Vortex Optics manufacturer. It usually costs around $250 USD
Sealing and Gas Purging for Scope Tubes
Wetness inside your rifle glass can ruin a day of shooting and your costly optic by inducing fogging and generating residue inside of the scope’s tube. Many scopes prevent moisture from going into the optical tube with a system of sealing O-rings which are waterproof. Usually, these water-resistant scopes can be immersed within 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be ample wetness avoidance for standard use rifles, unless you plan on taking your rifle on your motorboat and are concerned about the scope still working if it goes over the side and you can still retrieve the gun.
Gas Purged Glass Tubes
Another element of preventing the accumulation of moisture within the rifle scope tube is filling the tube with a gas like nitrogen. Because this area is already occupied by the gas, the scope is less affected by condition changes and pressure variations from the outdoor environment which may potentially permit water vapor to seep in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a decent rifle scope to look for.
