Last update on September 30, 2023 // Source: Amazon API
Rifle Scope Product Details
Nightforce ATACR 4-16×42 F1 ZH .1mrad Illum PTL TReMor3 C575
NightForce ATACR, 4, 16x42mm F1, ZeroHold Riflescope, .1 Mil, Radian, DigIllum, PTL, TReMoR3, C575
Rifle Scope Product Features
42mm objective lens
1st focal plane
Tactical MIL turrets
Waterproof and fogproof
Tremor 3 reticle
About the NightForce Scope Maker
NightForce is a premium company for long gun scopes, optics, mounting solutions, and other add-ons used for firearms like rifles and long guns. They innovate and manufacture their mounts and related products by choosing materials which are long lasting and durable. This includes the Nightforce ATACR 4-16×42 F1 ZH .1mrad Illum PTL TReMor3 C575 by NightForce. For additional shooting items, visit their website.
Rifle Optic Info
Rifle scopes permit you to specifically align a rifle at various targets by lining up your eye with the target over a distance. They accomplish this through zoom by using a set of lenses inside the scope. The scope’s positioning can be dialed in for consideration of many ecological things like wind speed and elevation increases to make up for bullet drop.
The scope’s purpose is to understand precisely where the bullet will land based upon the sight picture you are viewing via the scope as you align the scope’s crosshair or reticle with the target. A lot of modern-day rifle scopes have about 11 parts which are found internally and on the exterior of the scope body. These optic pieces include the rifle scope’s body, lenses, windage and elevation dials, focus rings, and other elements. See all eleven parts of scopes.
About Rifle Optic Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Selecting the best type of rifle glass is based around what type of shooting you plan on doing.
First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. These types of scopes are useful for:
- Quick acquisition, long distance kinds of shooting
- Shooting situations where estimations are low
- Experienced shooters who have an idea for their aim point “hold over” and “lead” correlations for their firearm
- Shooters who do not mind the reticle is bigger and uses up more visual sight space than a SFP reticle
Second Focal Plane Scope Facts
Second focal plane scopes (SFP) feature the reticle to the rear of the zoom lens. This causes the reticle to remain at the very same size in relation to the amount of magnification being used. The end result is that the reticle measurements shift based on the zoom employed to shoot over greater ranges considering the reticle measurements represent various increments which vary with the zoom level. In the FFP example with the SFP glass, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick measurement. These particular styles of scopes work for:
- Far away styles of shooting where shooters have extra time to make ballistic estimations
- Shooting where most of the shots happen within much shorter distances and ranges
- Shooters who desire a clearer optic sight picture with less space used up by the bigger FFP reticle
Ins and Outs of Rifle Optic Magnification
The amount of magnification a scope supplies is identified by the diameter, density, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
About Fixed Single Power Lens Glass
A single power rifle scope comes with a zoom number designator like 4×32. This suggests the magnification power of the scope is 4x power and the objective lens is 32mm. The zoom of this type of optic can not fluctuate considering that it is fixed.
About Adjustable Power Lens Scopes
Variable power rifle scopes can be changed between magnification levels. These types of scopes will list the zoom degree in a configuration like 2-10×32. These numbers mean the magnification of the scope can be adjusted in between 2x and 10x power. This additionally includes the power levels in-between 2 and 10. The power adaptation is accomplished by making use of the power ring component of the scope near the rear of the scope by the eye bell.
Power and Range
Here are some advised scope powers and the distances where they could be effectively used. Always remember that high power glass will not be as efficient as lower powered optics and scopes since too much zoom can be a detractor. The same applies to extended distances where the shooter needs to have increased power to see exactly where to best aim the rifle at the target.
Lens Finishing for Glass
All modern rifle scope lenses are coated. There are different types and qualities of glass lens finishings. When researching high end rifle scope systems, Lens coating can be an important element of defining the rifle’s capability. The glass lenses are one of the most essential pieces of the optic as they are what your eye sees through while sighting a rifle in on the point of impact. The coating on the lenses shields the lens surface and helps with anti glare capabilities from refracted natural light and color visibility.
Info on Rifle Scope Lens Coatings – HD Versus ED
Some scope producers also use “HD” or high-definition lens coatings which use different methods, components, chemicals, and polarizations to draw out various colors and viewable definition through the lens. Some scope makers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Rifle Scope Lens Single Coating Versus Multi-Coating
Different optic lenses can likewise have different finishings applied to them. All lenses normally have at least some type of treatment or finish applied to them before being used in a rifle scope or optic.
This lens treatment can protect the lens from scratches while decreasing 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 maker and how much you paid for it.
Some scope manufacturers likewise make it a point to define if their optic lenses are layered or “multi” coated. This means the lens has had multiple treatments applied to the surfaces. If a lens gets several treatments, it can prove that a manufacturer is taking numerous steps to fight various environmental factors like an anti-glare covering, a scratch resistant anti-abrasion finish, followed by a hydrophilic finish. This also does not necessarily mean the multi-coated lens is better than a single layered lens. Being “better” depends upon the manufacturer’s lens treatment techniques and the quality of materials used in constructing the rifle glass.
Optic Lens Hydrophobic Finishing
Water on an optical lens does not assist with preserving a clear sight picture through an optic at all. Many top of the line and premium optic manufacturers will coat their lenses with a hydrophobic or hydrophilic covering. The Steiner Optics Nano-Protection is a fine example of this kind of treatment. It deals with the surface area of the Steiner scope lens so the H2O molecules can not bind to it or develop surface tension. The result is that the water beads slide off of the scope to preserve a clear, water free sight picture.
Optic Installing Choices
Mounting options for scopes are available in a few choices. There are the standard scope rings which are individually installed to the optic and one-piece mounts which cradle the scope. These different types of mounts also typically come in quick release versions which use manual levers which permit rifle shooters to quickly mount and dismount the glass.
Hex Key Optic Ring Mounts
Standard, clamp type mounting scope rings use hex head screws to fix to the flattop design Picatinny scope mount rails on the tops of rifles. These kinds of scope mounts use two individual rings to support the scope, and are normally constructed from 7075 T6 billet aluminum which are developed for far away accuracy shooting. This form of scope mount is very good for rifles which need to have a resilient, unfailing mount which will not shift regardless of how much the scope is moved or abuse the rifle takes. These are the design of mounts you really want to have for a faithful optics setup on a reach out and touch someone hunting or competitors firearm which will almost never need to be modified or recalibrated. Blue 242 Loctite threadlocker can additionally be used on the screws to keep the hex screw threads from wiggling out after they are mounted firmly in position. An example of these rings are the 30mm style from Vortex Optics. The set normally costs around $200 USD
Quick-Release Cantilever Rifle Scope Ring Mounting Solutions
These kinds of quick-release rifle scope mounts can be used to rapidly connect and detach a scope from a rifle. If they all use a similar style mount, multiple scopes can often be swapped out on the range. The quick detach mount style is CNC machined from anodized 6061 T6 aluminum and the mounting levers connect tightly 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 precision. These types of mounts are useful and practical for shooting platforms which are transferred between vehicles a lot, to remove the scope glass from the rifle for protection, or for sight systems which are utilized in between multiple rifles. An example of this mount style is the 30mm mount designed by Vortex Optics. It typically costs around $250 USD
Optic Tube Sealing and Gas Purging
Wetness inside your rifle scope can wreck a day of shooting and your costly optic by causing fogging and making residue within the scope’s tube. The majority of optics protect against wetness from going into the optical tube with a series of sealing O-rings which are waterproof. Normally, these water-resistant optics can be immersed beneath 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be sufficient wetness prevention for conventional use rifles for hunting and sporting purposes, unless you anticipate taking your rifle aboard a watercraft and are worried about the optic still functioning if it is submerged in water and you can still rescue the rifle.
Rifle Scope Gas Purging
Another element of avoiding the buildup of moisture inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Since this area is currently taken up by the gas, the scope is less affected by climate changes and pressure variations from the outside environment which could potentially permit water vapor to leak in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a good rifle scope to seek out.