Description
Rifle Scope Product Details
Crosman CPA416AORG2 Centerpoint 4-16x40mm Riflescope
Adventure Class scopes come standard with adjustable objectives, delivering a parallax-free image, without moving the point of impact. This means, if your target moves, your scope can adjust quickly and accurately at any distance. And their dual illuminated reticles offer a bright, sharp image for those fast-moving, close-in shots. Whether you’re shooting at dusk or at dawn, in heavy brush or open field, the Adventure Class will deliver a quick, bright image. Includes weaver-style/picatinny mounting rings and flip-open lens caps.
Rifle Scope Product Features
Adjustable objective from 4 to 16x power, Dual illuminated Mil-Dot reticle
One Piece, 1-inch tube
Rated for airgun and firearm use
Multi-coated lenses
Bonus: Flip-up lens caps and 1-inch picatinny rings
About the Crosman Scope Maker
Crosman is a premium supplier for rifle scopes, optics, mounting solutions, and other accessories used for firearms like rifles and long guns. They style and supply their mounts and related products by choosing elements which are long lasting and resilient. This includes the Crosman CPA416AORG2 Centerpoint 4-16x40mm Riflescope by Crosman. For additional shooting products, visit their website.
Rifle Glass Information
Rifle scopes allow you to specifically aim a rifle at different targets by lining up your eye with the target over a range. They do this through zoom by utilizing a set of lenses inside the scope. The scope’s alignment can be adapted for the consideration of varied natural aspects like wind speed and elevation increases or decreases to make up for bullet drop.
The scope’s function is to understand exactly where the bullet will hit based on the sight picture you are viewing with the optic as you align the scope’s crosshair or reticle with the target. Most modern-day rifle optics have about 11 parts which are found inside and outside of the scope. These parts consist of the rifle scope’s body, lenses, elevation dials or turrets, focus rings, and other components. See all eleven parts of an optic.
Rifle Optic Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The style of focal plane an optic has identifies where the reticle or crosshair lies in regard to the scopes zoom. It actually indicates the reticle is situated behind or before the magnification lens of the optic. Choosing the best type of rifle optic is based upon what type of hunting or shooting you intend on doing.
First Focal Plane Scope Info
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. These styles of scopes are useful for:
- Quick acquisition, long distance types of shooting
- Shooting situations where computations are minor
- Experienced shooters who have an idea for their aim point “hold over” as well as “lead” relationships for their rifles
- Shooters who don’t mind the reticle is enlarged and occupies more visual sight space than a SFP reticle
Second Focal Plane Glass Details
Second focal plane scopes (SFP) feature the reticle to the rear of the magnification lens. This triggers the reticle to remain at the exact same scale relative to the amount of magnification being used. The outcome is that the reticle measurements change based upon the magnification used to shoot over lengthier distances due to the fact that the markings represent various increments which vary with the zoom level. In the FFP illustration with the SFP glass, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick. These particular types of optics are convenient for:
- Long distance forms of shooting where shooters have extra time to make ballistic estimations
- Shooting where most of the shots take place within shorter ranges and spaces
- Shooters who desire a clearer optic picture without space taken up by the bigger FFP reticle
Details on Rifle Glass Zoom
The amount of scope magnification you need on your scope depends on the form of shooting you desire to do. Just about every kind of rifle glass gives some degree of magnification. The level of zoom a scope delivers is established by the diameter, thickness, and curves of the lens glass within the rifle optic. The zoom of the scope is the “power” of the opic. This indicates what the shooter is checking out through the scope is magnified times the power element of what can generally be seen by human eyes.
Info on Fixed Single Power Lens Scopes
A single power rifle scope and optic will have a zoom number designator like 4×32. This implies the zoom power of the scope is 4x power while the objective lens is 32mm. The zoom of this type of optic can not adjust since it is set from the factory.
Info About Adjustable Power Lens Optics
Variable power rifle scopes use enhanced power. The power adjustment is accomplished by using the power ring part of the scope near the rear of the scope by the eye bell.
Power and Range
Here are some advised scope power settings and the ranges where they may be effectively used. Bear in mind that high power scopes will not be as efficient as lower magnification level 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 where to properly aim the rifle.
Details on Lens Coating
All top of the line rifle optic lenses are coated. Lens finish is an essential element of a rifle’s setup when looking at high end rifle optics and scope setups.
ED Versus HD Scopes
Some scope producers likewise use “HD” or high-definition lens coatings which use various techniques, polarizations, aspects, and chemicals to draw out separate colors and viewable quality through the lens. Some scope manufacturers use “HD” to refer to “ED” to signify the lens has extra-low dispersion glass.
Single Finish Versus Multi-Coating
Various scope lenses can even have various coverings applied to them. All lenses typically have at least some kind of treatment or coating applied to them prior to being used in a rifle scope or optic assembly. Since the lens isn’t just a raw piece of glass, they require performance enhancing coatings. It is part of the carefully tuned optic. It must have a finish placed on it so that it will be efficiently usable in lots of kinds of environments, degrees of sunlight (full light VS shaded), and other shooting conditions.
This lens treatment can safeguard the lens from scratches while lowering glare and other less helpful things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends on the scope manufacturer and how much you paid for it.
Some scope makers also make it a point to specify if their optic lenses are coated or “multi” coated. This suggests the lens has numerous treatments applied to them. If a lens receives multiple treatments, it can indicate that a manufacturer is taking several steps to fight different natural elements like an anti-glare coating, a scratch resistant anti-abrasion coating, followed by a hydrophilic finishing. This additionally does not always indicate the multi-coated lens will perform better than a single covered lens. Being “better” depends on the manufacturer’s lens treatment techniques and the quality of glass used in developing the rifle scope.
Optic Lens Anti-water Coating
Water on a scope lens doesn’t support retaining a clear sight picture through an optic at all. Lots of top of the line or premium optic manufacturers will coat their lenses with a hydrophobic or hydrophilic finishing. The Steiner Optics Nano-Protection is a fine example of this kind of treatment. It treats the surface area of the Steiner optic lens so the water molecules can not bind to it or create surface tension. The result is that the water beads sheet off of the scope to preserve a clear, water free sight picture.
Glass Installation Alternatives
Installing solutions for scopes are available in a few choices. There are the standard scope rings which are separately mounted to the scope and one-piece scope mounts which cradle the scope. These different types of mounts also usually are made in quick release variations which use throw levers which allow rifle operators to quickly install and dismount the scope.
Hex Key Scope Ring Mounts
Standard, clamp-on style mounting scope rings use hex head screws to position to the flattop style Picatinny scope mount rails on rifles. These types of scope mounts use two separate rings to support the scope, and are normally made from 7075 T6 billet aluminum which are developed for long distance precision shooting. This type of scope mount is good for rifle systems which need a long lasting, rock solid mount which will not change regardless of how much the scope is moved about or abuse the rifle takes. These are the style of mounts you should have for a devoted scope system on a far away hunting or tournament rifle which will almost never need to be altered or adjusted. Blue 242 Loctite threadlocker can also be used on the scope mount’s screws to prevent the hex screws from wiggling out after they are mounted tightly in place. An example of these mounting rings are the 30mm type from the Vortex Optics company. The set usually costs around $200 USD
Quick-Release Cantilever Rifle Glass Ring Mounting Solutions
These kinds of quick-release rifle scope mounts can be used to quickly connect and remove a scope from a rifle. A wide range of scopes can also be swapped out if they all use a complementary designed mount. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect solidly to a flat top type Picatinny rail. This enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while maintaining precision. These types of mounts are useful and practical for shooting platforms which are transported a lot, to take off the glass from the rifle for protection, or for aiming systems which are chosen for use in between numerous rifles. An example of this mount type is the 30mm mount from the Vortex Optics brand. It usually costs around $250 USD
Details on Rifle Glass Tube Sealing and Gas Purging
Moisture inside your rifle optic can spoil a day on the range and your pricey optic by inducing fogging and making residue within the scope tube. Most scopes prevent moisture from entering the optical tube with a system of sealing O-rings which are water resistant. Usually, these water-resistant scopes can be immersed under 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 sailing and are concerned about the optic still functioning if it goes over the side and you can still rescue the rifle.
Gas Purged Rifle Optic Tubes
Another component of avoiding the buildup of wetness within the rifle scope tube is filling the tube with a gas like nitrogen. Since this area is currently taken up by the gas, the glass is less affected by temperature changes and pressure variations from the outside environment which could potentially permit water vapor to permeate in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to seek out.
