Description
Rifle Scope Product Details
U.S. Optics FDNFX-10 Riflescope, 10x40mm, 34mm Tube, FFP, Gap Reticle, 1/10 MIL FDN FX10 Gap
U.S. Optics FDNFX-10 Riflescope, 10x40mm, 34mm Tube, FFP, GAP Reticle, 1/10 MIL Elevation/ Windage Adjustment, Black, Small, FDN FX10 GAP
Rifle Scope Product Features
U.S. Optics FDNFX-10 Riflescope
10x40mm
34mm Tube
FFP, Gap Reticle
1/10 MIL FDN FX10 Gap
About the U.S. Optics Scope Maker
U.S. Optics is a premium supplier for firearm scopes, optics, mounting solutions, and other add-ons used for firearms like rifles and long guns. They innovate and make their scopes, mounts, and related products making the most of materials which are long lasting and resilient. This includes the U.S. Optics FDNFX-10 Riflescope, 10x40mm, 34mm Tube, FFP, Gap Reticle, 1/10 MIL FDN FX10 Gap by U.S. Optics. For more shooting items, visit their website.
What You Need to Know About Rifle Glass
Rifle scopes allow you to exactly aim a rifle at various targets by aligning your eye with the target at range. They do this through magnification by utilizing a set of lenses within the scope. The scope’s positioning can be adapted for the consideration of various ecological considerations like wind and elevation decreases to make up for bullet drop.
The scope’s purpose is to help the shooter understand precisely where the bullet will hit based on the sight picture you are viewing with the scope as you line up the scope’s crosshair or reticle with the target. Many modern-day rifle optics have around 11 parts which are arranged within and externally on the scope. These parts include the rifle scope’s body, lenses, modification turrets or dials, focus rings, and other parts. Learn about the eleven parts of glass.
The Varieties of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The type of focal plane a scope has determines where the reticle or crosshair is located relative to the scopes magnification. It actually means the reticle is located behind or before the magnifying lens of the optic. Looking for the best form of rifle optic is dependent on what form of shooting or hunting you anticipate undertaking.
About First Focal Plane Scopes
First focal plane scopes (FFP) include the reticle in front of the magnifying lens. This causes the reticle to increase in size based on the level of zoom being used. The outcome is that the reticle measurements are the same at the magnified distance as they are at the non amplified range. One tick on a mil-dot reticle at 100 yards without “zoom” is still the same tick at 100 yards by using 5x “zoom”. These types of scopes work for:
- Quick acquisition, long distance types of shooting
- Shooting situations where estimations are minimal
- Experienced shooters who have an idea for their aim point “hold over” and also “lead” equations for their weapon
- Shooters who do not mind the reticle is enlarged and takes up more visual eyesight area than a SFP reticle
Second Focal Plane Glass Details
Second focal plane scopes (SFP) feature the reticle to the rear of the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick measurement.
- Long distance styles of shooting where shooters have more time to make ballistic estimations
- Shooting where most shots happen within much shorter distances and ranges
- Shooters who select a clearer optic sight picture without space taken up by the larger sized FFP reticle
Scope Magnification
The measure of scope magnification you need depends on the sort of shooting you plan to do. Nearly every style of rifle scope delivers some degree of zoom. The quantity of magnification a scope supplies is determined by the dimension, density, and curves of the lens glass within the rifle scope. The zoom of the scope is the “power” of the scope. This signifies what the shooter is checking out through the scope is amplified times the power factor of what can generally be seen by human eyes.
Fixed Single Power Lens Rifle Scope Facts
A single power rifle scope or optic will have 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 optic can not change considering that it is fixed.
Adjustable Power Lens Glass
Variable power rifle scopes can be changed between magnification power levels. These types of scopes will note the magnification level in a configuration like 2-10×32. These numbers mean the magnification of the scope can be changed in between 2x and 10x power. This additionally involves the powers in-between 2 and 10. The power shift is achieved utilizing the power ring part of the scope near the rear of the scope by the eye bell.
Rifle Optic Power Level and Ranges
Here are some recommended scope power levels and the distances where they can be successfully used. Keep in mind that higher power glass will not be as practical as lower magnification level optics since too much zoom can be a negative thing in certain situations. The same idea applies to longer distances where the shooter needs to have adequate power to see precisely where to best aim the rifle at the target.
Glass Lens Finish
All modern rifle scope and optic lenses are layered. Lens finishing is an essential aspect of a rifle system when looking at high end rifle optics and scope equipment.
HD Versus ED Lenses
Some scope makers also use “HD” or high-definition lens coverings which use various processes, polarizations, components, 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” indicating extra-low dispersion glass.
Single Covering Versus Multi-Coating
Different optic lenses can even have various coverings applied to them. All lenses normally have at least some kind of treatment or coating applied to them prior to being used in a rifle scope or optic. Since the lens isn’t simply 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 usable in many types of environments, degrees of sunshine (full light VS shade), and other shooting conditions.
This lens treatment can offer protection to the lens from scratches while lowering glare and other less beneficial things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends on the scope maker and how much you paid for it.
Some scope producers likewise make it a point to specify if their optic lenses are coated or “multi” coated. This means the lens has multiple treatments applied to the surfaces of the glass. If a lens gets multiple treatments, it can establish that a maker is taking multiple actions to fight different natural elements like an anti-glare coating, a scratch resistant anti-abrasion finishing, followed by a hydrophilic coating. This additionally doesn’t necessarily imply the multi-coated lens is better than a single coated lens. Being “better” is dependent on the manufacturer’s lens treatment solutions and the quality of components used in building the rifle glass.
Optic Lens Hydrophobic Finish
Water on a lens does not assist with preserving a clear sight picture through a scope at all. Lots of top of the line and high-end scope companies will coat their lenses with a hydrophobic or hydrophilic anti-water covering.
Rifle Scope Installing Choices
Mounting options for scopes can be found in a few choices. There are the basic scope rings which are individually installed to the scope and one-piece scope mounts which cradle the scope. These various types of mounts also generally can be found in quick release versions which use throw levers which allow rifle operators to quickly install and dismount the scope.
Hex Key Rifle Optic Rings
Normal, clamp style 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 range accuracy shooting. This type of scope install is excellent for rifles which require a long lasting, rock solid mount which will not move no matter how much the scope is moved or abuse the rifle takes.
Optic Mounting Solutions with Quick-Release Cantilever Rings
These kinds of quick-release rifle scope mounts can be used to quickly connect and take off a scope from a rifle. If they all use a comparable style mount, multiple scopes can often be switched out. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect nicely to a flat top design Picatinny rail. This enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while retaining precision. These types of mounts come in practical for rifles which are moved around a lot, to take off the scope from the rifle for protection, or for optics which are utilized in between multiple rifles. An example of this mount style is the 30mm mount from Vortex Optics. It generally costs around $250 USD
Optic Tube Sealing and Gas Purging
Wetness inside your rifle scope can ruin a day of shooting and your pricey optic by causing fogging and creating residue inside of the scope tube. Most scopes prevent wetness from going into the scope tube with a system of sealing O-rings which are water resistant.
Glass Gas Purging
Another part of avoiding the accumulation of moisture within the rifle scope’s tube is filling the tube with a gas like nitrogen. Because this space is already taken up by the gas, the glass is less affected by temperature shifts and pressure variations from the outside environment which may potentially permit water vapor to seep in around the seals to fill the void which would otherwise be there. These are good qualities of a good rifle scope to look for.
