Description
Rifle Scope Product Details
US Optics FDN 17x 3.2-17x50mm; 34MM Tube; Digital Red FFP Horus H102 Reticle; 110 Click ER3K with 1/10 MIL Adjustments; 48 Click US#1 Windage Knob with 1/10 MIL Adjustments
US Optics FDN 17x 3.2-17x50mm; 34MM Tube; Digital Red FFP HORUS H102 Reticle; 110 Click ER3K with 1/10 MIL Adjustments; 48 Click US#1 Windage Knob with 1/10 MIL Adjustments
Rifle Scope Product Features
About the U.S. Optics Scope Maker
U.S. Optics is a premium producer for firearm scopes, optics, mounting solutions, and other accessories used for guns like rifles and long guns. They design and supply their scopes and related products choosing materials which are durable and long lasting. This includes the US Optics FDN 17x 3.2-17x50mm; 34MM Tube; Digital Red FFP Horus H102 Reticle; 110 Click ER3K with 1/10 MIL Adjustments; 48 Click US#1 Windage Knob with 1/10 MIL Adjustments by U.S. Optics. For more shooting items, visit their site.
What You Need to Know About Rifle Scopes
Rifle scopes allow you to specifically aim a rifle at different targets by aligning your eye with the target over a distance. They do this through magnification by using a set of lenses within the scope. The scope’s positioning can be adapted to account for many environmental things like wind speed and elevation to make up for bullet drop.
The scope’s function is to help the shooter understand precisely where the bullet will hit based upon the sight picture you are seeing via the optic as you align the scope’s crosshair or reticle with the target. The majority of modern rifle scopes have about eleven parts which are found internally and externally on the optic. These scope parts include the rifle scope’s body, lenses, windage dials, focus rings, and other elements. See all eleven parts of a scope.
Rifle Scope Types
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The type of focal plane an optic has decides where the reticle or crosshair lies in connection with the scopes magnifying adjustments. It simply indicates the reticle is located behind or in front of the magnifying lens of the scope. Picking the best sort of rifle optic depends on what variety of shooting you anticipate undertaking.
First Focal Plane Scope Details
First focal plane optics (FFP) come with the reticle ahead of the zoom lens. This induces the reticle to increase in size based on the amount of zoom being used. The benefit is that the reticle measurements are the same at the magnified range as they are at the non amplified range. One tick on a mil-dot reticle at one hundred yards without “zoom” is still the very same tick at one hundred yards with 5x “zoom”. These kinds of scopes are valuable for:
- Quick acquisition, far away types of shooting
- Shooting situations where computations are small
- Experienced shooters who have an idea for their aim point “hold over” plus “lead” relationships for their long guns
- Shooters who do not mind the reticle is bigger and uses up more visual eyesight room than a SFP reticle
Second Focal Plane Glass Details
Second focal plane glass (SFP) come with the reticle behind the magnifying lens. This induces the reticle to stay at the very same dimensions in connection with the volume of zoom being used. The end result is that the reticle dimensions change based upon the magnification employed to shoot over greater ranges given that the reticle measurements present different increments which can vary with the zoom. In the FFP example with the SFP optic, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement. These sorts of optics are beneficial for:
- Far away kinds of shooting where shooters have additional time to make ballistic estimations
- Shooting where most of the shots happen within much shorter spaces and ranges
- Shooters who want a clearer optic sight picture with less area used up by the larger size FFP reticle
Ins and Outs of Rifle Scope Magnification
The quantity of scope magnification you need is based on the kind of shooting you plan to do. Nearly every type of rifle scope delivers some level of magnification. The volume of magnification a scope offers is determined by the diameter, thickness, and curves of the lens glass within the rifle scope. The magnification of the scope is the “power” of the opic. This implies what the shooter is checking out through the scope is magnified times the power factor of what can normally be seen by human eyes.
Single Power Lens Rifle Glass Info
A single power rifle scope will have a zoom number designator like 4×32. This indicates the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this kind of optic can not fluctuate given that it is set from the factory.
Variable Power Lens Optics
Variable power rifle scopes can be changed between magnification power levels. It will note the zoom degree in a format like 2-10×32. These numbers suggest the zoom of the scope can be changed between 2x and 10x power. This additionally involves the powers in-between 2 and 10. The power adjustment is accomplished by operating the power ring component of the scope near the rear of the scope by the eye bell.
The Power and Range of Rifle Glass
Here are some suggested scope powers and the distances where they can be effectively used. Always remember that high power scopes will not be as practical as lower powered optics due to the fact that increased magnification can be a negative thing in certain situations. The exact same concept goes for extended distances where the shooter needs to have sufficient power to see exactly where to properly aim the rifle.
Lens Coating for Scopes
All contemporary rifle optic lenses are layered. There are various types and qualities of lens coatings. Lens covering is an essential aspect of a rifle’s setup when looking at high-end rifle optics and scope units. The glass lenses are among the most crucial components of the optic due to the fact that they are what your eye looks through while sighting a rifle in on the target. The covering on the lenses shields the lens surface and also improves anti glare from refracted sunrays and color discernibility.
About Rifle Optic Lens Coatings – HD Versus ED
Some rifle scope companies also use “HD” or high-def lens finishings that employ different processes, polarizations, elements, and chemicals to draw out various colors and viewable target definition through lenses. This high-def finishing is commonly used with greater density lens glass which lowers light’s ability to refract by means of the lens glass. Some scope producers use “HD” to refer to “ED” implying extra-low dispersion glass. ED deals with how certain colors are represented on the chroma spectrum and the chromatic aberration or deviance which is also called color distortion or fringing. Chromatic aberration may be obvious around things with hard edges and outlines as light hits the item from certain angles.
Single Finish Versus Multi-Coating
Various optic lenses can even have different coverings applied to them. All lenses typically have at least some kind of treatment or covering applied to them prior to being used in a rifle scope or optic assembly. This is because the lens isn’t just a raw piece of glass. It becomes part of the finely tuned optic. It needs to have a finish placed on it so that it will be optimally functional in lots of types of environments, degrees of sunshine (full light VS shade), and other shooting conditions.
Single covered lenses have a treatment applied to them which is normally a protective and boosting multi-purpose treatment. This lens treatment can safeguard the lens from scratches while decreasing glare and other less advantageous things experienced in the shooting environment while sighting in with the optic. The quality of a single coated lens depends on the scope manufacturer and how much money you spent paying for it. Both are indicators of the lens quality.
Some scope makers also make it a point to define if their optic lenses are coated or “multi” covered. Being “much better” depends on the maker’s lens treatment technology and the quality of products used in building the rifle scope.
Hydrophobic Scope Lens Covering
Water on a lens does not assist with preserving a clear sight picture through a scope at all. Many top of the line and military grade optic makers will coat their lenses with a hydrophobic or hydrophilic anti-water covering.
Rifle Glass Installing Choices
Installing solutions for scopes come in a couple of choices. There are the standard scope rings which are individually installed to the scope and one-piece scope mounts which cradle the scope. These different types of mounts also generally come in quick release versions which use throw levers which permit rifle shooters to rapidly mount and dismount the scopes.
Hex Key Rifle Scope Rings
Normal, clamp style mounting scope rings use hex head screws to mount to the flattop design Picatinny scope installation rails on rifles. These types of scope mounts use a couple of different rings to support the optic, and are made from 7075 T6 billet aluminum which is created for long distance precision shooting. This type of scope mount is great for rifles which require a durable, rock solid mounting solution which will not move no matter how much the scope is moved or abuse the rifle takes.
Rifle Optic Mounts with Quick-Release Cantilever 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 comparable design mount, multiple scopes can also be switched out on the range. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten firmly to a flat top design Picatinny rail. This permits the scope to be sighted in while on the rifle, removed from the rifle, and remounted back on the rifle while maintaining the original sighting settings. These kinds of mounts are useful and handy for shooting platforms which are transferred between vehicles a lot, to remove the scope from the rifle for protection, or for scopes which are used between several rifles. An example of this mount style is the 30mm mount from Vortex Optics. It normally costs around $250 USD
Info on Scope Tube Sealing and Gas Purging
Wetness inside your rifle optic can ruin a day of shooting and your pricey optic by triggering fogging and producing residue inside of the scope tube. A lot of scopes prevent wetness from getting in the scope tube with a system of sealing O-rings which are waterproof.
Info on Optic Tube Gas Purging
Another part of avoiding the accumulation of wetness within the rifle scope tube is filling the tube with a gas like nitrogen. Considering that this area is currently occupied by the gas, the scope is less influenced by climate shifts and pressure distinctions from the outside environment which could potentially permit water vapor to leak in around the seals to fill the void which would otherwise exist. These are good qualities of a good rifle scope to seek out.
