Description
Rifle Scope Product Details
U.S. Optics FDN-25X Riflescope, 5-25x52mm, 34mm Tube, FFP, GEN II XR Reticle, 1/10 FDN 25X GENIIXR
U.S. Optics FDN-25X Riflescope, 5-25x52mm, 34mm Tube, FFP, GEN II XR Reticle, 1/10 MIL Elevation/ Windage Adjustment, Black, Medium, FDN 25X GENIIXR
Rifle Scope Product Features
U.S. Optics FDN-25X Riflescope
5-25x52mm, 34mm Tube
FFP, GEN II XR Reticle
1/10 FDN 25X GENIIXR
About the U.S. Optics Scope Maker
U.S. Optics is a premium manufacturer for weapon scopes, optics, mounts, and other components used for guns like rifles and long guns. They style and manufacture their mounts and related products by choosing building materials which are durable and long lasting. This includes the U.S. Optics FDN-25X Riflescope, 5-25x52mm, 34mm Tube, FFP, GEN II XR Reticle, 1/10 FDN 25X GENIIXR by U.S. Optics. For more shooting items, visit their website.
Rifle Glass Details
Rifle scopes allow you to specifically aim a rifle at various targets by aligning your eye with the target over a range. They do this through magnifying the target by using a series of lenses inside the scope. The scope’s positioning can be adjusted for consideration of separate ecological factors like wind and elevation to make up for bullet drop.
The scope’s function is to understand precisely where the bullet will land based upon the sight picture you are viewing with the optic as you line up the scope’s crosshair or reticle with the target. Many modern rifle scopes and optics have about eleven parts which are found within and outside of the optic. These optic pieces consist of the rifle scope’s body, lenses, windage turrets, focus rings, and other parts. See all eleven parts of a rifle scope.
Rifle Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The sort of focal plane a scope has establishes where the reticle or crosshair lies in relation to the scopes magnification. It simply implies the reticle is located behind or in front of the magnification lens of the scope. Deciding on the most effective form of rifle optic is dependent on what sort of shooting you intend on undertaking.
Info on First Focal Plane Scopes
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These types of scopes are useful for:
- Quick acquisition, long distance types of shooting
- Shooting situations where estimations are low
- Experienced shooters who recognize their aim point “hold over” as well as “lead” equations for their firearm
- Shooters who don’t mind the reticle is bigger and requires more visual sight room than a SFP reticle
About Second Focal Plane Optics
Second focal plane optics (SFP) come with the reticle behind the magnifying lens. This induces the reticle to stay at the very same size relative to the amount of zoom being used. The end result is that the reticle dimensions change based upon the magnification employed to shoot over lengthier distances considering that the reticle measurements present various increments which differ with the magnification. In the FFP example with the SFP glass, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick measurement. These particular varieties of optics are handy for:
- Long distance forms of shooting where shooters have increased time to make ballistic estimations
- Shooting where most of the shots take place within shorter ranges and spaces
- Shooters who prefer a clearer optic picture without room used up by the enlarged FFP reticle
Magnification for Scopes
The quantity of zoom 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.
Fixed Power Lens Rifle Optics
A single power rifle scope uses a zoom number designator like 4×32. This means 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 given that it is fixed.
Adjustable Power Lens Rifle Optics
Variable power rifle scopes use enhanced power. The power change is accomplished by making use of the power ring part of the scope near the rear of the scope by the eye bell.
Power Levels and Range
Here are some recommended scope power settings and the ranges where they may be efficiently used. Keep in mind that higher magnification optics will not be as effective as lower powered optics since increased zoom can be a bad thing. The same idea goes for extended distances where the shooter needs to have increased power to see precisely where to properly aim the rifle.
Details on Rifle Optic Lens Coatings
All current rifle optic and scope lenses are coated. Lens covering is a vital aspect of a shooting system when looking at high end rifle optics and scope setups.
HD Versus ED Rifle Optic Lens Coatings
Some scope manufacturers also use “HD” or high-definition lens coverings which use different procedures, components, polarizations, and chemicals to draw out a wide range of colors and viewable definition through the lens. Some scope manufacturers use “HD” to refer to “ED” to signify the lens has extra-low dispersion glass.
Info on Single Covering Versus Multi-Coating
Different optic lenses can likewise have various finishings applied to them. All lenses typically have at least some type of treatment or finish used to them before being used in a rifle scope or optic.
This lens treatment can safeguard the lens from scratches while minimizing glare and other less advantageous 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 makers similarly make it a point to define if their optic lenses are layered or “multi” covered. Being “much better” depends on the manufacturer’s lens treatment technology and the quality of materials used in constructing the rifle scope.
Rifle Scope Lens Anti-water Coating
Water on a lens does not assist with keeping a clear sight picture through a scope at all. Numerous top of the line and high-end optic makers will coat their lenses with a hydrophobic or hydrophilic finish.
Optic Mounting Choices
Mounting solutions for scopes are available in a few options. There are the basic scope rings which are separately mounted to the optic and one-piece mounts which cradle the scope. These different types of mounts also usually can be found in quick release variations which use toss levers which enable rifle shooters to quickly mount and remove the optics.
Scope Mounts with Hex Key Rings
Standard, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mount rails on the tops of rifles. These kinds of scope mounts use double individual rings to support the optic, and are usually constructed from 7075 T6 billet aluminum or similar materials which are manufactured for long distance precision shooting. This type of scope mount is exceptional for rifles which need a long lasting, unfailing mount which will not shift despite how much the scope is moved about or abuse the rifle takes. These are the type of mounts you really want to have for a specialized optics system on a long distance hunting or tournament rifle which will rarely need to be modified or adjusted. Blue 242 Loctite threadlocker can additionally be used on the scope mount screws to stop the hex screw threads from backing out after they are installed tightly in place. An example of these mounting rings are the 30mm type made by Vortex Optics. The set normally costs around $200 USD
Optic Mounting Solutions with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly remove a scope and attach it to a different rifle. Multiple scopes can even be switched out if they all use a similar style mount. These types of mounts are convenient for rifle platforms which are transferred a lot, to swap out the optic from the rifle for protection, or for optics which are used between several rifles.
Sealing and Gas Purging for Scope Tubes
Moisture inside your rifle optic can ruin a day of shooting and your pricey optic by causing fogging and producing residue inside of the scope tube. A lot of scopes prevent moisture from getting in the scope tube with a system of sealing O-rings which are water resistant.
Optic Gas Purging
Another element of preventing the buildup of moisture within the rifle scope tube is filling the tube with a gas like nitrogen. Because this space is already occupied by the gas, the optic is less affected by condition alterations and pressure differences from the outside environment which may potentially enable water vapor to permeate in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a good rifle scope to seek out.
