Description
Rifle Scope Product Details
NightForce ATACR F1 5-25×56 – MIL-XT Front Focal
Nightforce ATACR 5-25x56mm F1 ZeroStop .1 Mil-Radian DigIllum PTL Mil-XT C616
Rifle Scope Product Features
34mm main tube
First focal plane
Tactical MIL turrets
Waterproof and fogproof
3.35″ – 3.54″ eye relief
About the NightForce Brand
NightForce is a premium producer for rifle scopes, optics, mounts, and other accessories used for firearms like rifles and long guns. They create and manufacture their scopes, mounts, and related products by using elements which are resilient and long lasting. This includes the NightForce ATACR F1 5-25×56 – MIL-XT Front Focal by NightForce. For additional shooting items, visit their website.
Optic Details
Rifle scopes allow you to precisely align a rifle at different targets by lining up your eye with the target over a range. They accomplish this through magnification using a series of lenses within the scope. The scope’s alignment can be adapted for consideration of various ecological things like wind and elevation increases to account for bullet drop.
The scope’s function is to understand exactly where the bullet will hit based on the sight picture you are viewing via the optic as you align the scope’s crosshair or reticle with the target. Most modern rifle scopes and optics have about 11 parts which are found internally and outside of the scope. These parts consist of the rifle scope’s body, lenses, modification dials, objective focus rings, and other components. See all eleven parts of scopes.
About Scope Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The type of focal plane a scope has decides where the reticle or crosshair is located relative to the optic’s zoom. It simply indicates the reticle is situated behind or ahead of the magnification lens of the scope. Considering the most ideal style of rifle glass depends on what variety of shooting or hunting you plan on undertaking.
About First Focal Plane Scopes
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These kinds of scopes are useful for:
- Quick acquisition, long distance types of shooting
- Shooting scenarios where computations are marginal
- Experienced shooters who know their target “hold over” as well as “lead” equations for their long gun
- Shooters who do not mind the reticle is enlarged and occupies more visual sight room than a SFP reticle
Info on Second Focal Plane Scopes
Second focal plane glass (SFP) feature the reticle behind the zoom lens. This causes the reticle to remain at the same scale in connection with the level of magnification being used. The outcome is that the reticle measurements adapt based on the magnification chosen to shoot over lengthier ranges due to the fact that the markings represent distinct increments which vary with the zoom level. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement. These styles of optics are handy for:
- Long distance types of shooting where shooters have more time to make ballistic calculations
- Shooting where most shots happen within much shorter ranges and proximities
- Shooters who want a clearer optic sight picture without room used up by the larger sized FFP reticle
Zoom for Scopes
The quantity of scope magnification you need on your glass is based on the type of shooting you want to do. Just about every kind of rifle optic offers some degree of zoom. The level of magnification a scope provides is determined by the dimension, thickness, and curvatures of the lenses inside of the rifle optic. The magnification of the scope is the “power” of the glass. This means what the shooter is checking out through the scope is amplified times the power aspect of what can usually be seen by human eyes.
Fixed Power Lens Rifle Optic Info
A single power rifle scope will have a magnification number designator like 4×32. This indicates the magnification power of the scope is 4x power and the objective lens is 32mm. The zoom of this type of scope can not fluctuate because it is a fixed power optic.
About Variable Power Lens Rifle Optics
Variable power rifle scopes use variable power levels. The power change is accomplished by using the power ring part of the scope near the back of the scope by the eye bell.
Scope Power and Range Correlation
Here are some advised scope power settings and the ranges where they may be effectively used. Bear in mind that high magnification glass will not be as practical as lower powered scopes because increased zoom can be a bad thing. The same relates to extended distances where the shooter needs to have enough power to see precisely where to properly aim the rifle at the target.
Details on Lens Coatings
All contemporary rifle scope lenses are layered. Lens finishing can be an important aspect of a shooting platform when purchasing high end rifle optics and scope setups.
Details on Optic Lens Coatings – HD Versus ED
Some scope makers additionally use “HD” or high-def glass coatings which take advantage of various processes, rare earth compounds, polarizations, and components to enhance various color ranges and viewable target definition through lenses. This HD finish is frequently used with greater density lens glass which decreases light’s potential to refract by means of the lens glass. Some scope manufacturers use “HD” to refer to “ED” meaning extra-low dispersion glass. ED handles how certain colors are represented on the chroma spectrum and the chromatic aberration which is also called color distortion or fringing. Chromatic aberration is often obvious over objects with well defined shapes as light hits the object from various angles.
Single Finish Versus Multi-Coating
Different optic lenses can likewise have various coatings used to them. All lenses typically have at least some type of treatment or covering applied to them before they are used in a rifle scope or optic.
This lens treatment can protect 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 manufacturer and how much you paid for it.
Some scope manufacturers similarly make it a point to specify if their optic lenses are layered or “multi” covered. Being “better” depends on the manufacturer’s lens treatment innovation and the quality of products used in building the rifle scope.
Anti-water Covering for Rifle Glass
Water on an optic’s lens doesn’t improve preserving a clear sight picture through a scope in any way. Many top of the line and premium scope manufacturers 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 treats the exterior surfaces of the Steiner optic lens so the water particles can not bind to it or produce surface tension. The result is that the water beads move off of the scope to preserve a clear, water free sight picture.
Scope Installation Options
Installing solutions for scopes are available in a few options. There are the standard scope rings which are individually mounted to the scope and one-piece scope mounts which cradle the scope. These different types of mounts also generally are made in quick release versions which use toss levers which enable rifle operators to rapidly mount and dismount the glass.
Hex Key Rifle Scope Rings
Basic, clamp type mounting scope rings use hex head screws to install to the flattop design Picatinny scope mounting rails on the tops of rifles. These types of scope mounts use double independent rings to support the optic, and are normally constructed from 7075 T6 billet aluminum or similar materials which are made for long distance accuracy shooting. This type of scope mount is good for rifle systems which need to have a long lasting, rock solid mount which will not shift despite just how much the scope is moved about or jarring the rifle takes. These are the style of mounts you should get for a faithful optics setup on a reach out and touch someone scouting or competitors firearm that will almost never need to be changed or recalibrated. Blue 242 Loctite threadlocker can additionally be used on screws to protect against the hex screw threads from backing out after they are mounted tightly in position. An example of these mounting rings are the 30mm type from the Vortex Optics brand. The set usually costs around $200 USD
Scope Mounts 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. Several scopes can also be switched out if they all use a similar style mount. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect tightly to a flat top design Picatinny rail. This lets the scope to be sighted in while on the rifle, removed from the rifle, and remounted while keeping accuracy. These kinds of mounts come in beneficial for shooting platforms which are transferred between vehicles a lot, to remove the optic from the rifle for protection, or for sight systems which are adopted in between numerous rifles. An example of this mount style is the 30mm mount designed by Vortex Optics. It generally costs around $250 USD
Sealing and Gas Purging for Glass Tubes
Wetness inside your rifle optic can mess up a day of shooting and your costly optic by resulting in fogging and developing residue inside of the scope tube. The majority of scopes protect against wetness from going into the scope tube with a system of sealing O-rings which are water resistant. Typically, these water-resistant scopes can be immersed underneath 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be sufficient moisture content prevention for standard use rifles for hunting and sporting purposes, unless you anticipate taking your rifle on a boat and are worried about the optic still working if it falls overboard and you can still rescue the firearm.
Gas Purged Rifle Optic Tubes
Another part of avoiding the buildup of moisture inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Given that this area is already taken up by the gas, the optic is less affected by climate shifts and pressure distinctions from the outside environment which could 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.
