Last update on August 18, 2022 // Source: Amazon API
Rifle Scope Product Details
NightForce ATACR – 7-35x56mm F1 ZeroStop .1mrad DigIllum PTL Mil-C C578
NightForce ATACR 7-35×56 F1 Riflescope w/Digillum, Zerostop, PTL, 34mm Tube, .1 Mil-Rad, Mil-C Reticle, Black, C578
Rifle Scope Product Features
56MM OBJECTIVE LENS for maximum light transmission and a large field of view
FIRST FOCAL PLANE RETICLE grows and shrinks with magnification changes
TACTICAL MIL TURRETS for quick and easy windage and elevation adjustments
WATERPROOF AND FOGPROOF
ILLUMINATED RETICLE for easy target acquisition in low-light conditions
About the NightForce Company
NightForce is a premium company for firearm scopes, optics, mounting solutions, and other components used for firearms like rifles and long guns. They style and build their mounts and related products by choosing building materials which are durable and long lasting. This includes the NightForce ATACR – 7-35x56mm F1 ZeroStop .1mrad DigIllum PTL Mil-C C578 by NightForce. For additional shooting products, visit their site.
Info About Rifle Optics
Rifle scopes enable you to precisely aim a rifle at different targets by lining up your eye with the target at range. They accomplish this through magnification by utilizing a set of lenses within the scope. The scope’s alignment can be adapted for the consideration of different environmental things like wind and elevation increases or decreases to make up for bullet drop.
The scope’s purpose is to understand precisely where the bullet will hit based on the sight picture you are viewing through the optic as you line up the scope’s crosshair or reticle with the intended target. Many modern rifle scopes and optics have around 11 parts which are located within and outside of the scope body. These optic pieces consist of the rifle scope’s body, lenses, windage and elevation turrets or dials, objective focus rings, and other components. Learn about the eleven parts of rifle scopes.
The Styles of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The type of focal plane an optic has establishes where the reticle or crosshair is located in regard to the optic’s magnifying adjustments. It simply indicates the reticle is situated behind or before the magnification lens of the scope. Choosing the most effective kind of rifle scope is based upon what variety of shooting or hunting you plan on undertaking.
Info About First Focal Plane Optics
First focal plane optics (FFP) feature the reticle before the magnifying lens. This triggers the reticle to increase in size based upon 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 magnified range. For instance, one tick on a mil-dot reticle at 100 yards without “zoom” is still the same tick at 100 yards with 5x “zoom”. These types of scopes are useful for:
- Quick acquisition, long distance types of shooting
- Shooting situations where estimations are small
- Experienced shooters who recognize their target “hold over” and “lead” relationships for their long guns
- Shooters who don’t mind the reticle is bigger and uses up more visual eyesight space than a SFP reticle
Info About Second Focal Plane Glass
Second focal plane optics (SFP) feature the reticle behind the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick.
- Far away kinds of shooting where shooters have more time to make ballistic estimations
- Shooting where most of the shots take place within much shorter proximities and ranges
- Shooters who prefer a clearer optic picture without space taken up by the larger sized FFP reticle
About Scope Magnification
The quantity of scope zoom you need on your glass is based on the style of shooting you would like to do. Just about every kind of rifle optic supplies some degree of magnification. The level of zoom a scope delivers is determined by the diameter, density, and curves of the lens glass within the rifle scope. The magnification level of the optic is the “power” of the opic. This implies what the shooter is observing through the scope is amplified times the power factor of what can generally be seen by human eyes.
Fixed Power Lens Glass Info
A single power rifle optic uses 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 magnification of this kind of optic can not adjust given that it is a set power scope.
Variable Power Lens Optic Facts
Variable power rifle scopes can be tweaked between magnified settings. The power adjustment is performed by making use of the power ring part of the scope near the back of the scope by the eye bell.
The Power Level and Range of Glass
Here are some advised scope powers and the distances where they can be successfully used. High power glass will not be as effective as lower powered optics since too much magnification can be a bad thing. The exact same idea relates to longer distances where the shooter needs enough power to see exactly where to best aim the rifle.
Info on Lens Covering
All modern-day rifle scope and optic lenses are coated. Lens finishing is a significant element of a shooting system when buying high end rifle optics and scope equipment.
Info on Rifle Glass Lens Coatings – HD Versus ED
Some scope companies will also use “HD” or high-def lens finishes that take advantage of various procedures, rare earth compounds, elements, and polarizations to enhance numerous colors and viewable target definition through the lens. This high-definition coating is typically used with more costly, high density glass which drops light’s potential to refract through the lens glass. Some scope brands use “HD” to describe “ED” implying extra-low dispersion glass. ED handles how certain colors are presented on the chroma spectrum and the chromatic deviance or aberration which is similarly called color distortion or fringing. Chromatic aberration may be obvious over things with defined outlines as light hits the item from specific angles.
Single Glass Lens Coating Versus Multi-Coating
Different scope lenses can even have different coverings applied to them. All lenses generally have at least some kind of treatment or finishing applied to them before they are used in a rifle scope or optic. This is because the lens isn’t simply a raw piece of glass. It becomes part of the carefully tuned optic. It needs to have a finish applied to it so that it will be efficiently usable in many kinds of environments, degrees of sunshine (full light VS shaded), and other shooting conditions.
Single covered lenses have a treatment applied to them which is typically a protective and improving multi-purpose treatment. This lens treatment can safeguard the lens from scratches while minimizing glare and other less beneficial things experienced in the shooting environment while sighting in with the optic. The quality of a single layered lens depends upon the scope designer and the amount you spent for it. Both the manufacturer and amount are indications of the lens quality.
Some scope makers also make it a point to define if their optic lenses are coated or “multi” coated. Being “better” depends on the producer’s lens treatment innovation and the quality of products used in developing the rifle scope.
Hydrophobic Lens Finishing
Water on a lens doesn’t help with preserving a clear sight picture through a scope at all. Numerous top of the line and military grade scope makers will coat their lenses with a hydrophilic or hydrophobic finishing.
Scope Mounting Alternatives
Installing solutions for scopes are available in a few options. There are the standard scope rings which are individually mounted to the optic and one-piece scope mounts which cradle the scope. These various types of mounts also usually are made in quick release variations which use manual levers which allow rifle operators to rapidly install and remove the optics.
Rifle Glass Mounting Solutions with Hex Key Rings
Standard, clamp-on design mounting optic rings use hex head screws to install to the flattop design Picatinny scope mount rails on rifles. These types of scope mounts use a pair of detached 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 are in need of a long lasting, rock solid mount which will not shift regardless of how much the scope is moved or jarring the rifle takes. These are the design of mounts you should get for a devoted scope system on a reach out and touch someone scouting or sniper competition firearm which will pretty much never need to be changed or adjusted. Blue 242 Loctite threadlocker can also be used on the scope mount screws to keep the hex screws from wiggling out after they are installed securely in place. An example of these mounting rings are the 30mm style made by the Vortex Optics brand. The set normally costs around $200 USD
Quick-Release Cantilever Rifle Optic Rings
These types of quick-release rifle scope mounts can be used to quickly detach a scope from a rifle and reattach it to a different rifle. If they all use a comparable style mount, several scopes can also be switched in the field. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten tightly to a flat top type 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 handy for rifles which are transported a lot, to take off the scope glass from the rifle for protection, or for aiming systems which are employed in between a number of rifles. An example of this mount type is the 30mm mount from the Vortex Optics brand. It usually costs around $250 USD
Sealing and Gas Purging for Rifle Scope Tubes
Wetness inside your rifle optic can destroy a day of shooting and your expensive optic by bringing about fogging and creating residue inside of the scope tube. A lot of scopes prevent moisture from entering the scope tube with a system of sealing O-rings which are waterproof.
Optic Gas Purging
Another element of avoiding the buildup of wetness inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Considering that this area is already taken up by the gas, the optic is less altered by climate shifts and pressure variations from the external environment which could possibly allow water vapor to seep in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a good rifle scope to look for.