Last update on February 8, 2023 // Source: Amazon API
Rifle Scope Product Details
Sun Optics USA CS41-4260 Fixed Power 2nd Plane Specialty Scope
Fixed power 2nd Plane specialty scopes same great features as our first Focal Plane featuring fixed power configurations in a 10×44 sweet Sniper and a 42×60 bench. 30mm one-piece tube design for superior strength precision ground, fully multi-coated lenses with wide band coating and extended polishing process for crisp edge-to-edge clarity and maximum light transmission windage and elevation adjustments in millimeters glass-etched reticle fast-focus adjustable Ocular for precise clarity swp down to 10 yds Nitrogen filled for waterproof, shockproof, and fogproof peace of mind.
Rifle Scope Product Features
30mm one-piece tube design for superior strength
Precision ground, fully multi-coated lenses with wide band coating and extended polishing process for crisp edge-to-edge clarity and maximum light transmission
Windage and elevation adjustments in millimetres
Fast-focus adjustable ocular for precise clarity
Nitrogen filled for waterproof, shockproof, and Fogproof peace of mind
About the Sun Optics USA Manufacturer
Sun Optics USA is a premium supplier for long gun scopes, optics, mounts, and other add-ons used for firearms like rifles and long guns. They create and build their scopes and related products choosing elements which are long lasting and durable. This includes the Sun Optics USA CS41-4260 Fixed Power 2nd Plane Specialty Scope by Sun Optics USA. For more shooting items, visit their site.
Rifle scopes permit you to precisely aim a rifle at different targets by aligning your eye with the target over a distance. They accomplish this through magnification by utilizing a set of lenses inside the scope. The scope’s alignment can be adapted for the consideration of separate ecological things like wind and elevation to account for bullet drop.
The scope’s purpose is to understand precisely where the bullet will hit based on the sight picture you are seeing using the optic as you align the scope’s crosshair or reticle with the intended point of impact. Most contemporary rifle optics have about 11 parts which are found within and on the exterior of the scope. These optic pieces consist of the rifle scope’s body, lenses, windage and elevation turrets or dials, objective focus rings, and other parts. See all eleven parts of scopes.
Rifle Scope Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The style of focal plane a scope has establishes where the reticle or crosshair lies in regard to the optic’s magnifying adjustments. It simply implies the reticle is located behind or before the magnifying lens of the optic. Picking out the most effective style of rifle scope depends upon what form of shooting or hunting you anticipate undertaking.
First Focal Plane Glass
Focal plane scopes (FFP) come with the reticle in front of the magnifying lens. This triggers the reticle to increase in size based on the level of magnification being used. The benefit is that the reticle measurements are the same at the magnified range as they are at the non magnified distance. For instance, one tick on a mil-dot reticle at one hundred yards with no “zoom” is still the corresponding tick at one hundred yards with 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, long distance kinds of shooting
- Shooting circumstances where estimations are low
- Experienced shooters who recognize their aim point “hold over” as well as “lead” ratios for their firearm
- Shooters who do not mind the reticle is enlarged and uses up more visual eyesight space than a SFP reticle
Second Focal Plane Optic Info
Second focal plane scopes (SFP) feature the reticle behind the magnifying lens. This triggers the reticle to stay at the same scale relative to the level of magnification being used. The result is that the reticle measurements alter based on the magnification used to shoot over greater distances considering that the markings present various increments which fluctuate with the magnification level. In the FFP illustration with the SFP glass, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick. These sorts of optics are convenient for:
- Far away types of shooting where shooters have more time to make ballistic estimations
- Shooting where most of the shots take place within much shorter ranges and spaces
- Shooters who desire a clearer optic picture without room used up by the enlarged FFP reticle
Ins and Outs of Glass Zoom
The amount of zoom a scope provides is figured out by the diameter, density, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
About Fixed Power Lens Rifle Optics
A single power rifle scope or optic uses a magnification number designator like 4×32. This indicates the zoom power of the scope is 4x power while the objective lens is 32mm. The zoom of this kind of scope can not adjust since it is a fixed power optic.
Adjustable Power Lens Scope Facts
Variable power rifle scopes have adjustable power. These types of scopes will note the zoom degree in a format like 2-10×32. These numbers indicate the zoom of the scope can be changed in between 2x and 10x power. This always incorporates the power levels in-between 2 and 10. The power adjustment is achieved utilizing the power ring part of the scope near the back of the scope by the eye bell.
Power and Range Correlations
Here are some suggested scope power levels and the distances where they may be successfully used. Consider that higher power optics and scopes will not be as practical as lower powered scope and optics due to the fact that excessive zoom can be a detractor. The exact same idea goes for longer ranges where the shooter needs to have increased power to see precisely where to properly aim the rifle at the target.
About Optic Lens Covering
All modern-day rifle optic and scope lenses are coated. There are various types and qualities of lens finishings. Lens finishing is a crucial element of a rifle when looking into high end rifle optics and targeting units. The lenses are among the most critical pieces of the glass considering that they are what your eye sees through while sighting a rifle in on the target. The coating on the lenses safeguards the lens surface area as well as improves anti glare capabilities from excess direct sunlight and color perception.
About Lens Coatings – HD Versus ED
Some scope producers likewise use “HD” or high-definition lens finishes which use various procedures, polarizations, components, and chemicals to draw out different colors and viewable quality through the lens. Some scope producers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Single Finishing Versus Multi-Coating for Rifle Glass
Various scope lenses can also have different coatings applied to them. All lenses generally have at least some type of treatment or finishing applied to them before being used in a rifle scope or optic assembly. Because the lens isn’t just a raw piece of glass, they require performance enhancing coatings. 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 lots of kinds of environments, degrees of light (full light VS shaded), and other shooting conditions.
Single covered lenses have a treatment applied to them which is generally a protective and improving multi-purpose treatment. This lens treatment can protect the lens from scratches while reducing glare and other less advantageous things experienced in the shooting environment while sighting in with the optic. The quality of a single layered lens depends on the scope company and how much money you paid for it. Both are signs of the lens quality.
Some scope manufacturers similarly make it a point to specify if their optic lenses are covered or “multi” covered. Being “much better” depends on the maker’s lens treatment technology and the quality of materials used in developing the rifle scope.
Hydrophobic Optic Lens Finishing
Water on a lens does not assist with keeping a clear sight picture through a scope at all. Numerous top of the line and military grade optic companies will coat their lenses with a hydrophilic or hydrophobic finishing.
Options for Mounting Optics on Firearms
Mounting solutions for scopes are available in a couple of options. There are the standard scope rings which are separately mounted to the optic and one-piece mounts which cradle the scope. These different kinds of mounts also generally come in quick release variations which use toss levers which allow rifle shooters to quickly install and remove the scope.
Rifle Glass Mounts with Hex Key Rings
Standard, clamp type mounting optic 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 double separate rings to support the scope, and are made from 7075 T6 billet aluminum or similar materials which are made for long distance precision shooting. This kind of scope mount is very good for rifle systems which need to have a long lasting, unfailing mount which will not move despite how much the scope is moved or abuse the rifle takes. These are the style of mounts you should get for a dedicated scope setup on a far away scouting or hard target interdiction rifle that will rarely need to be changed or adjusted. Blue 242 Loctite threadlocker can also be used to protect against the hex screws from wiggling out after they are installed securely in place. An example of these rings are the 30mm style made by the Vortex Optics company. The set usually costs around $200 USD
Scope Mounting Solutions with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to rapidly remove a scope and connect it to a different rifle. Several scopes can even be switched out if they all use a similar style mount. These types of mounts come in handy for rifles which are transported a lot, to remove the optic from the rifle for protecting the scope, or for optics which are used between multiple rifles.
Glass Tube Sealing and Gas Purging
Moisture inside your rifle glass can mess up a day of shooting and your expensive optic by resulting in fogging and generating residue within the scope tube. A lot of optics protect against wetness from going into the scope tube with a series of sealing O-rings which are waterproof. Normally, these water-resistant scopes 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 humidity avoidance for basic use rifles for hunting and sporting purposes, unless you anticipate taking your rifle aboard watercrafts and are worried about the optic still functioning if it is submerged in water and you can still salvage the gun.
Gas Purged Glass Tubes
Another part of preventing the buildup of moisture within the rifle scope’s tube is filling the tube with a gas like nitrogen. Given that this area is currently occupied by the gas, the scope is less affected by temperature level shifts and pressure distinctions from the outdoor environment which may possibly allow water vapor to leak in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to look for.