Description
Rifle Scope Product Details
U.S. Optics FDN-17X Riflescope, 3.2-17x50mm, 34mm Tube, FFP, MDMOA Reticle, 1/4 IPHY FDN 17X MDMOA
U.S. Optics FDN-17X Riflescope, 3.2-17x50mm, 34mm Tube, FFP, MDMOA Reticle, 1/4 IPHY Elevation/ Windage Adjustment, Black, Medium, FDN 17X MDMOA
Rifle Scope Product Features
U.S. Optics FDN-17X Riflescope
3.2-17x50mm, 34mm Tube
FFP, MDMOA Reticle, 1/4 IPHY FDN 17X MDMOA
About the U.S. Optics Manufacturer
U.S. Optics is a premium maker for firearm scopes, optics, mounts, and other components used for firearms like rifles and long guns. They design and manufacture their scopes and related products by using building materials which are long lasting and resilient. This includes the U.S. Optics FDN-17X Riflescope, 3.2-17x50mm, 34mm Tube, FFP, MDMOA Reticle, 1/4 IPHY FDN 17X MDMOA by U.S. Optics. For additional shooting items, visit their site.
Optic Details
Rifle scopes enable you to exactly aim a rifle at various targets by aligning your eye with the target over a range. They do this through magnifying the target by utilizing a series of lenses within the scope. The scope’s alignment can be adapted to take into account separate ecological elements like wind and elevation decreases to account for bullet drop.
The scope’s purpose is to understand exactly where the bullet will land based upon the sight picture you are viewing with the scope as you line up the scope’s crosshair or reticle with the intended target. Many modern-day rifle scopes have around eleven parts which are found within and externally on the scope body. These scope parts consist of the rifle scope’s body, lenses, modification dials, objective focus rings, and other components. See all eleven parts of a scope.
About Rifle Scope Styles
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The form of focal plane an optic has identifies where the reticle or crosshair is located in regard to the scopes zoom. It actually means the reticle is situated behind or before the magnifying lens of the scope. Choosing the best kind of rifle glass is based on what kind of shooting or hunting you intend on doing.
First Focal Plane Scope Info
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These kinds of scopes are beneficial for:
- Quick acquisition, far away kinds of shooting
- Shooting scenarios where computations are minor
- Experienced shooters who have an idea for their aim point “hold over” plus “lead” relationships for their firearms
- Shooters who do not mind the reticle is bigger and uses up more visual sight area than a SFP reticle
Second Focal Plane Scope Facts
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” 100 yard tick would be 1/5th of the non “zoom” tick measurement.
- Far away kinds of shooting where shooters have more time to make ballistic calculations
- Shooting where most of the shots take place within shorter ranges and spaces
- Shooters who select a clearer optic sight picture without space used up by the larger sized FFP reticle
Details on Glass Zoom
The quantity of scope magnification you need depends on the kind of shooting you like to do. Pretty much every type of rifle scope supplies some amount of magnification. The level of zoom a scope provides is established by the diameter, thickness, and curves of the lens glass within the rifle scope. The magnification level of the optic is the “power” of the glass. This suggests what the shooter is aiming at through the scope is magnified times the power element of what can typically be seen by human eyes.
Fixed Single Power Lens Scope Details
A single power rifle scope comes with 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 magnification of this kind of scope can not fluctuate since it is set from the factory.
About Adjustable Power Lens Rifle Optics
Variable power rifle scopes use enhanced power. The power adjustment is accomplished by making use of the power ring part of the scope near the back of the scope by the eye bell.
Power and Range
Here are some advised scope power settings and the ranges where they could be effectively used. Remember that higher magnification scopes and optics will not be as efficient as lower magnification level glass since too much zoom can be a detractor. The same idea goes for longer distances where the shooter needs to have adequate power to see where to properly aim the rifle at the target.
Info on Optic Lens Finishing
All contemporary rifle scope lenses are covered in special coatings. There are different types and qualities of lens coverings. Lens coating can be an essential aspect of a rifle when thinking of luxury rifle optics and targeting units. The glass lenses are among the most key parts of the optic due to the fact that they are what your eye sees through while sighting a rifle in on the point of impact. The coating on the lenses safeguards the lens surface area and also helps with anti glare capabilities from excess daylight and color visibility.
ED Versus HD Optics
Some scope makers likewise use “HD” or high-definition lens coverings which use various procedures, polarizations, chemicals, and aspects to draw out a wide range of colors and viewable quality through the lens. Some scope manufacturers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Single Finishing Versus Multi-Coating
Different optic lenses can also have various coatings applied to them. All lenses generally have at least some type of treatment or finishing applied to them prior to being used in a rifle scope or optic assembly. This is due to the fact that the lens isn’t simply a raw piece of glass. It becomes part of the finely tuned optic. It requires a coating to be applied to it so that it will be efficiently functional in many kinds of environments, degrees of sunshine (full VS shade), and other shooting conditions.
Single layered lenses have a treatment applied to them which is normally a protective and boosting multi-purpose treatment. This lens treatment can protect 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 upon the scope manufacturer and how much you spent paying for it. Both are indicators of the lens quality.
Some scope makers similarly make it a point to define if their optic lenses are covered or “multi” covered. Being “better” depends on the manufacturer’s lens treatment innovation and the quality of materials used in constructing the rifle scope.
Anti-water Finish for Rifle Scopes
Water on an optic’s lens doesn’t improve keeping a clear sight picture through a scope at all. Numerous top of the line and premium scope makers will coat their lenses with a hydrophilic or hydrophobic coating. The Steiner Optics Nano-Protection is a good example of this type of treatment. It deals with the surface of the Steiner optic lens so the water particles can not bind to it or develop surface tension. The result is that the water beads sheet off of the scope to maintain a clear, water free sight picture.
Rifle Glass Installation Choices
Installing solutions for scopes come in a couple of options. There are the standard scope rings which are separately mounted to the scope and one-piece mounts which cradle the scope. These various types of mounts also generally are made in quick release versions which use throw levers which enable rifle shooters to quickly mount and dismount the scopes.
Hex Key Rifle Optic Rings
Basic, clamp-on type mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mounting rails on the tops of rifles. These types of scope mounts use a pair of individual rings to support the optic, and are made from 7075 T6 billet aluminum or similar materials which are created for long distance precision shooting. This form of scope mount is very good for rifle systems which need to have a resilient, hard use mount which will not shift no matter how much the scope is moved about or jarring the rifle takes. These are the design of mounts you should have for a devoted scope system on a reach out and touch someone scouting or competitors rifle that will pretty much never need to be modified or adjusted. Blue 242 Loctite threadlocker can also be used on the mount’s screws to stop the hex screws from wiggling out after they are installed safely in position. An example of these mounting rings are the 30mm style made by the Vortex Optics brand. The set generally costs around $200 USD
Rifle Scope Mounts with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly attach and take off a scope from a rifle. If they all use a comparable style mount, a number of scopes can often be swapped out. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers attach securely to a flat top style Picatinny rail. This allows the scope to be sighted in while on the rifle, removed from the rifle, and remounted while keeping precision. These kinds of mounts come in handy for rifles which are transferred a lot, to remove the optic from the rifle for protection, or for optics which are used between numerous rifles. An example of this mount style is the 30mm mount designed by Vortex Optics. It typically costs around $250 USD
Details on Rifle Scope Tube Sealing and Gas Purging
Wetness inside your rifle scope can destroy a day of shooting and your highly-priced optic by resulting in fogging and creating residue inside of the scope’s tube. Most scopes prevent humidity from getting in the scope tube with a series of sealing O-rings which are water resistant. Generally, these water-resistant scopes can be submerged underneath 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be sufficient wetness prevention for basic use rifles, unless you intend on taking your rifle sailing and are concerned about the optic still performing if it is submerged in water and you can still recover the rifle.
Glass Gas Purging
Another element of avoiding the accumulation of moisture within the rifle optic tube is filling the tube with a gas like nitrogen. Considering that this space is currently taken up by the gas, the scope is less altered by temperature level alterations and pressure distinctions from the external environment which may potentially allow 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.
