Description
Rifle Scope Product Details
Gamo 3-9X40 AO W/ RINGS 6212039X40AOCP Optics
This new Gamo scope has everything a Hunter could wish for. Fully multi coated optics that make targets appear bright and sharp. Clean design with a non-reflective black matte finish. Fast focus Ocular system and a generous eye relief that will make it easy to get on target faster. This Gamo scope also features the RGB illuminated center dot. A technology which allows multiple brightness and size settings of a floating Red, green or Blue dot for precision shot placement in any lighting condition.
Rifle Scope Product Features
3-9X magnification
Objective lens diameter: 40mm
Fully coated lens
Twilight factor: 10.95 – 18.97
Tube diameter 1 inch
3-9X Magnification; Objective Lens Diameter: 40mm; Fully Coated Lens
Exit Pupil Range: 13.3-4.4mm Eye Relief: 3.5in. Field of View @ 100 yards: 40-13ft; Diopter Compensation 2/-2 dpt; Twilight Factor 10.95 -18.97;
About the Gamo Company
Gamo is a premium supplier for weapon scopes, optics, mounting solutions, and other add-ons used for firearms like rifles and long guns. They innovate and manufacture their products choosing elements which are resilient and long lasting. This includes the Gamo 3-9X40 AO W/ RINGS 6212039X40AOCP Optics by Gamo. For additional shooting items, visit their site.
Info Rifle Glass
Rifle scopes allow you to exactly align a rifle at various targets by aligning your eye with the target over a range. They do this through zoom by using a series of lenses inside the scope. The scope’s positioning can be dialed in to take into account varied environmental elements like wind speed and elevation to make up for bullet drop.
The scope’s purpose is to understand exactly where the bullet will land based upon the sight picture you are viewing with the optic as you align the scope’s crosshair or reticle with the intended point of impact. Most modern rifle optics have about eleven parts which are found internally and outside of the scope body. These scope parts include the rifle scope’s body, lenses, windage and elevation turrets or dials, focus rings, and other components. Learn about the eleven parts of rifle glass.
Rifle Scope Types
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The kind of focal plane a scope has determines where the reticle or crosshair lies in regard to the scopes zoom. It simply implies the reticle is located behind or ahead of the magnification lens of the optic. Picking the most beneficial type of rifle glass is dependent on what sort of shooting you plan on undertaking.
Info About First Focal Plane Glass
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These kinds of scopes are useful for:
- Quick acquisition, far away kinds of shooting
- Shooting situations where computations are marginal
- Experienced shooters who recognize their aim point “hold over” as well as “lead” ratios for their rifles
- Shooters who don’t mind the reticle is bigger and requires more visual eyesight room than a SFP reticle
About Second Focal Plane Glass
Second focal plane scopes (SFP) feature the reticle to the rear of the magnification lens. This induces the reticle to stay at the very same overall size relative to the level of zoom being used. The outcome is that the reticle dimensions shift based upon the magnification applied to shoot over greater distances considering that the markings present different increments which change with the zoom level. In the FFP illustration with the SFP glass, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick measurement. These types of glass are useful for:
- Long distance forms of shooting where shooters have extra time to make ballistic computations
- Shooting where most of the shots occur within shorter ranges and spaces
- Shooters who would like a clearer optic sight picture with less area taken up by the larger sized FFP reticle
Details on Rifle Optic Zoom
The extent of scope zoom you require depends upon the sort of shooting you like to do. Pretty much every style of rifle glass provides some level of zoom. The quantity of zoom a scope supplies is identified by the diameter, density, and curves of the lens glass within the rifle scope. The magnifying level of the optic is the “power” of the scope. This indicates what the shooter is checking out through the scope is magnified times the power element of what can typically be seen by human eyes.
About Fixed Single Power Lens Optics
A single power rifle scope uses a zoom number designator like 4×32. This means the zoom power of the scope is 4x power while the objective lens is 32mm. The zoom of this kind of scope can not fluctuate given that it is a fixed power scope.
Variable Power Lens Rifle Optic Info
Variable power rifle scopes have adjustable power. It will note the zoom level in a format like 2-10×32. These numbers mean the magnification of the scope can be set between 2x and 10x power. This additionally incorporates the powers in-between 2 and 10. The power shift is accomplished by making use of the power ring part of the scope near the rear of the scope by the eye bell.
Power Levels and Range
Here are some advised scope powers and the ranges where they could be effectively used. High power glass will not be as beneficial as lower magnification glass since too much zoom can be a negative aspect depending on your shooting distance. The same concept goes for longer distances where the shooter needs enough power to see where to best aim the rifle.
Lens Covering for Optics
All top of the line rifle scope lenses are layered. Lens coating can be a crucial aspect of a rifle’s setup when looking at high end rifle optics and scope equipment.
Details on Rifle Glass Lens Coatings – HD Versus ED
Some scope manufacturers likewise use “HD” or high-definition lens coatings which use various processes, chemicals, polarizations, and aspects to draw out different colors and viewable definition through the lens. Some scope makers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Single Covering Versus Multi-Coating
Various scope lenses can even have different coverings applied to them. All lenses typically have at least some type of treatment or coating 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 is part of the finely tuned optic. It must have a covering placed on it so that it will be optimally usable in lots of kinds of environments, degrees of sunlight (full VS shaded), and other shooting conditions.
This lens treatment can offer protection to the lens from scratches while minimizing glare and other less beneficial 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 define if their optic lenses are covered or “multi” coated. Being “better” depends on the manufacturer’s lens treatment technology and the quality of products used in developing the rifle scope.
Rifle Scope Lens Anti-water Finish
Water on a lens does not assist with keeping a clear sight picture through a scope at all. Many top of the line and high-end scope makers will coat their lenses with a hydrophilic or hydrophobic coating which is water repellent.
Rifle Optic Installation Alternatives
Mounting options for scopes can be found in a couple of options. There are the basic scope rings which are individually installed to the scope and one-piece mounts which cradle the scope. These various kinds of mounts also typically come in quick release versions which use throw levers which allow rifle operators to quickly install and dismount the scope.
Optic Mounts with Hex Key Rings
Basic, clamp-on design mounting scope rings use hex head screws to install to the flattop style Picatinny scope mounting rails on rifles. These styles of scope mounts use double independent rings to support the scope, and are usually constructed from 7075 T6 billet aluminum which are developed for far away precision shooting. This type of scope mount is effective for rifle systems which need to have a resilient, unfailing mount which will not move despite how much the scope is moved or jarring the rifle takes. These are the type of mounts you really want to have for a dedicated optics system on a reach out and touch someone hunting or interdiction firearm that will hardly ever need to be modified or recalibrated. Blue 242 Loctite threadlocker can additionally be used on the scope mount screws to stop the hex screws from backing out after they are installed firmly in position. An example of these rings are the 30mm style from Vortex Optics. The set typically costs around $200 USD
Quick-Release Cantilever Optic Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to quickly connect and take off a scope from a rifle. If they all use a comparable design mount, a number of scopes can also be swapped in the field. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect tightly to a flat top style Picatinny rail. This lets the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while preserving the original sighting settings. These types of mounts are useful and convenient for rifles which are transferred between vehicles a lot, to remove the scope from the rifle for protection, or for sight systems which are used in between multiple rifles. An example of this mount style is the 30mm mount designed by Vortex Optics. It generally costs around $250 USD
Rifle Optic Tube Sealing and Gas Purging
Wetness inside your rifle scope can spoil a day on the range and your highly-priced optic by causing fogging and generating residue inside of the scope’s tube. The majority of optics prevent wetness from entering the scope tube with a system of sealing O-rings which are water resistant. Typically, these water resistant scopes can be submerged within 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be ample moisture prevention for basic use rifles, unless you intend on taking your rifle boating and are concerned about the optic still performing if it goes over the side and you can still rescue the firearm.
Rifle Optic Gas Purging
Another part of avoiding the buildup of moisture within the rifle scope tube is filling the tube with a gas like nitrogen. Given that this space is already taken up by the gas, the scope is less altered by temperature shifts and pressure differences from the outdoor environment which could possibly permit water vapor to leak 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.




