Description
Last update on August 9, 2022 // Source: Amazon API
Rifle Scope Product Details
U.S. Optics FDN-10X Riflescope, 1.8-10x40mm, 34mm Tube, FFP, MOA Scale Type 1 Reticle, FDN 10X MOA
U.S. Optics FDN-10X Riflescope, 1.8-10x40mm, 34mm Tube, FFP, MOA Scale Type 1 Reticle, 1/10 MIL Elevation/ Windage Adjustment, Black, Small, FDN 10X MOA
Rifle Scope Product Features
U.S. Optics FDN-10X Riflescope
1.8-10x40mm, 34mm Tube
FFP, MOA Scale Type 1 Reticle, FDN 10X MOA
About the U.S. Optics Company
U.S. Optics is a premium company for rifle scopes, optics, mounts, and other components used for guns like rifles and long guns. They style and supply their products making the most of elements which are resilient and long lasting. This includes the U.S. Optics FDN-10X Riflescope, 1.8-10x40mm, 34mm Tube, FFP, MOA Scale Type 1 Reticle, FDN 10X MOA by U.S. Optics. For additional shooting products, visit their website.
What You Need to Know About Optics
Rifle scopes allow you to exactly aim a rifle at different targets by aligning your eye with the target at range. They accomplish this through magnification by utilizing a set of lenses inside the scope. The scope’s positioning can be adapted for the consideration of numerous environmental factors like wind and elevation decreases to account for bullet drop.
The scope’s purpose is to understand exactly where the bullet will land based on the sight picture you are seeing with the optic as you align the scope’s crosshair or reticle with the intended target. Many contemporary rifle optics have around eleven parts which are arranged internally and outside of the scope. These scope parts include the rifle scope’s body, lenses, adjustment turrets or dials, focus rings, and other parts. Learn about the eleven parts of rifle glass.
About Rifle Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Opting for the perfect type of rifle glass is based on what type of shooting you plan to do.
Info About First Focal Plane Optics
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These types of scopes are useful for:
- Quick acquisition, long distance kinds of shooting
- Shooting situations where computations are small
- Experienced shooters who have an idea for their aim point “hold over” and “lead” correlations for their weapon
- Shooters who don’t mind the reticle is bigger and occupies more visual sight area than a SFP reticle
Second Focal Plane Optics
Second focal plane glass (SFP) come with the reticle to the rear of the zoom lens. This causes the reticle to remain at the very same scale in relation to the amount of zoom being used. The final result is that the reticle measurements adjust based on the zoom used to shoot over greater distances because the markings present distinct increments which can vary with the magnification. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick. These kinds of optics work for:
- Far away kinds of shooting where shooters have increased time to make ballistic estimations
- Shooting where most shots happen within much shorter ranges and distances
- Shooters who like a clearer optic picture with less space used up by the enlarged FFP reticle
Zoom for Rifle Glass
The quantity of zoom a scope provides is determined by the diameter, density, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
About Single Power Lens Glass
A single power rifle scope comes with a magnification number designator like 4×32. This indicates 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 because it is fixed.
Adjustable Power Lens Optics
Variable power rifle scopes can be adjusted between magnification power levels. It will note the magnification level in a format like 2-10×32. These numbers suggest the zoom of the scope could be set between 2x and 10x power. This also includes the power levels in-between 2 and 10. The power adaptation is accomplished by working with the power ring component of the scope near the rear of the scope by the eye bell.
Glass Power and Range Correlation
Here are some suggested scope power levels and the distances where they can be successfully used. Highly magnified scopes will not be as effective as lower magnification glass since too much magnification can be a negative aspect depending on your shooting distance. The same applies to longer distances where the shooter needs enough power to see exactly where to best aim the rifle at the target.
Lens Finishing for Rifle Glass
All top of the line rifle optic and scope lenses are coated. Lens coating is a significant aspect of a rifle when purchasing high end rifle optics and scope systems.
HD Versus ED Lens Coatings
Some scope makers also use “HD” or high-definition lens coverings which use various methods, polarizations, chemicals, and aspects to draw out a wide range of colors and viewable definition through the lens. Some scope producers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Single Finish Versus Multi-Coating for Rifle Scopes
Various optic lenses can also have different coverings applied to them. All lenses typically have at least some kind of treatment or covering applied to them before being used in a rifle scope or optic assembly. Due to the fact that the lens isn’t just a raw piece of glass, they require performance enhancing coatings. It is part of the finely tuned optic. It requires a coating to be applied to it so that it will be efficiently functional in lots of kinds of environments, degrees of light (full VS shaded), and other shooting conditions.
This lens treatment can offer protection to the lens from scratches while reducing glare and other less helpful things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends on the scope producer and how much you paid for it.
Some scope producers also make it a point to define if their optic lenses are coated or “multi” covered. This indicates the lens has numerous treatments applied to the surfaces of the glass. If a lens gets multiple treatments, it can show that a company is taking numerous actions to fight various natural factors like an anti-glare coating, a scratch resistant anti-abrasion finish, followed by a hydrophilic finish. This additionally doesn’t necessarily suggest the multi-coated lens is better than a single layered lens. Being “much better” depends upon the producer’s lens treatment innovation and the quality of components used in constructing the rifle glass.
Hydrophobic Rifle Scope Lens Covering
Water on a scope lens doesn’t improve preserving a clear sight picture through a scope whatsoever. Lots of top of the line or high-end scope producers will coat their lenses with a hydrophilic or hydrophobic finish. The Steiner Optics Nano-Protection is a good example of this sort of treatment. It deals with the exterior surfaces of the Steiner optic lens so the H2O particles 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.
Rifle Scope Installation Alternatives
Mounting approaches for scopes can be found in a couple of options. There are the standard scope rings which are separately mounted to the scope and one-piece scope mounts which cradle the scope. These different types of mounts also usually can be found in quick release versions which use throw levers which enable rifle operators to rapidly install and remove the scopes.
Hex Key Optic Ring Mounts
Standard, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope installation rails on rifles. These types of scope mounts use a couple of separate rings to support the optic, and are made from 7075 T6 billet aluminum which are created for long distance precision shooting. This type of scope mount is fine for rifles which need a resilient, rock solid mounting solution which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Rifle Scope Rings
These types of quick-release rifle scope mounts can be used to quickly detach a scope from a rifle and reattach it to a different rifle. Several scopes can also be switched out if they all use a complementary style mount. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten securely to a flat top type Picatinny rail. This permits the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while retaining the original sighting settings. These kinds of mounts are useful and practical for rifles which are moved a lot, to remove the scope glass from the rifle for protection, or for optics which are employed in between several rifles. An example of this mount style is the 30mm mount designed by Vortex Optics. It normally costs around $250 USD
Optic Tube Sealing and Gas Purging
Moisture inside your rifle scope can mess up a day of shooting and your highly-priced optic by resulting in fogging and developing residue inside of the scope tube. Many scopes protect against moisture from entering the optical tube with a system of sealing O-rings which are waterproof. Typically, these water-resistant scopes can be submerged beneath 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be plenty of humidity avoidance for basic use rifles for hunting and sporting purposes, unless you plan on taking your rifle aboard watercrafts and are worried about the optic still functioning if it goes over the side and you can still salvage the rifle.
Gas Purged Rifle Glass Tubes
Another component of preventing the buildup of wetness within the rifle optic tube is filling the tube with a gas like nitrogen. Since this area is already occupied by the gas, the glass is less altered by temp changes and pressure distinctions from the outside environment which may possibly permit water vapor to leak in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a good rifle scope to seek out.
