Description
Rifle Scope Product Details
BARSKA 3-7×20 Rimfire Riflescope
This scope will keep you on target. BARSKA’s Rimfire scope is designed specifically for small bore rifles. Calibrated parallax-free at 50 yards for shorter rimfire ranges. Featuring coated optics and a 30/30 reticle, ideal for competitive and recreational target shooting, small game or varmint-type hunting. Standard 3/8″ rings are included.
Specifications:
Magnification: 3-7x
Field of View (ft@100yds/m@100m): 21/7@3x-10/3.3@7x
Exit Pupil: 6.7-2.9mm
Eye Relief: 2.55″
Click value: 1/4
Rifle Scope Product Features
About this item
Precision Aiming: The 3-7x magnification scope features 1/4 MOA click adjustments for precision accuracy.
Quality Construction: The scope comes with coated optics, providing impressive viewing clarity. Tube diameter 3/4″.
30/30 Reticle: The scope comes with 30/30 crosshair reticle for easy targeting, ideal for any type of shooting.
Parallax Free: The scope is parallax free at 50 yards, making it easy to target at closer range.
Accessories: The scope comes with set of 3/8″ dovetail rings, lens cover, and lens cloth.
AC10002
Specs
Item: AC10002
Field of View(ft @ 100yds): 21 @ 3x, 10 @ 7x
Eye Relief: 2.55 inch
Exit Pupil: 6.7mm – 2.9mm
Focal Plane: Second
Click Value: 1/4 MOA
Length: 10.5″ ; Weight: 4.87 oz ; 3/4″ Tube Diameter
Included: Set of rings ; lens cloth
3-7x20mm Rimfire Scope
by Barska
The 3-7×20 Rimfire Rifle Scope from Barska is designed specifically for small bore rimfire rifles. With coated optics and parallax-free at 50 yards for shorter rimfire ranges the Rimfire rifle scope offers a 30/30 reticle. It has 1/4 MOA coin adjusted windage and elevation turrets. Black matte finish and standard 3/8″ rings complete this small game or varmint-type hunting, competitive and recreational target shooting rifle scope.
3-7x Magnification
20mm Objective Lens
30/30 Reticle
Coated Optics
Windage & Elevation Turrets
Durable, Light Weight Riflescope
This 3-7×20 Rimfire riflescope is durable and lightweight, perfect for hunting or target practice.
Crosshair Reticle
The scope comes with a crosshair 30/30 reticle, allowing the shooter to easily aim at the target.
Zoom Adjustment
3-7x adjustable zoom allows users to get up close to the target, suitable for mid- to short-range targeting.
Accessories
The scope comes with set of 3/8″ dovetail rings and lens cloth.
AC10002 AC10040 AC10038 AC10380 AC10730 AC10000
Magnification 3-7x 4x 4x 3-9x 4x 4x
Objective Lens 20mm 32mm 32mm 32mm 20mm 15mm
Lens Coating Coated Fully-Coated Fully-Coated Fully-Coated Coated Coated
Click Value (MOA) 1/4 MOA 1/4 MOA 1/4 MOA 1/4 MOA 1/4 MOA 1/4 MOA
Reticle 30/30 30/30 30/30 30/30 30/30 30/30
Length (in) 10.5″ 11.93″ 11.93″ 12″ 10.55″ 10.63″
Product Weight (oz) 4.87 oz 16.08 oz 16.08 oz 11.46 oz 4.8 oz 3.63 oz
About the BARSKA Manufacturer
BARSKA is a premium supplier for rifle scopes, optics, mounting solutions, and other add-ons used for firearms like rifles and long guns. They innovate and make their scopes, mounts, and related products by using building materials which are long lasting and resilient. This includes the BARSKA 3-7×20 Rimfire Riflescope by BARSKA. For additional shooting products, visit their website.
What You Need to Know About Rifle Glass
Rifle scopes enable you to specifically align a rifle at different targets by aligning your eye with the target over a range. They accomplish this through magnifying the target by employing a series of lenses inside the scope. The scope’s alignment can be adapted for the consideration of many natural things like wind speed and elevation to account for bullet drop.
The scope’s function is to help shooters understand precisely where the bullet will land based upon the sight picture you are viewing via the optic as you line up the scope’s crosshair or reticle with the target. A lot of modern rifle scopes and optics have about 11 parts which are found internally and outside of the scope. These optic pieces include the rifle scope’s body, lenses, elevation dials, focus rings, and other elements. See all eleven parts of optics.
About Rifle Glass Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Selecting the optimal type of rifle glass is based around what type of shooting you plan to do.
Info on First Focal Plane Glass
Focal plane scopes (FFP) come with the reticle in front of the zoom lens. This triggers the reticle to increase in size based on the amount of zoom being used. The benefit is that the reticle measurements are the same at the magnified range as they are at the non magnified range. For instance, one tick on a mil-dot reticle at 100 yards with no “zoom” is still the exact same tick at 100 yards using 5x “zoom”. These kinds of scopes are useful for:
- Quick acquisition, long distance kinds of shooting
- Shooting circumstances where computations are very little
- Experienced shooters who understand their aim point “hold over” and “lead” correlations for their firearm
- Shooters who do not mind the reticle is bigger and takes up more visual sight room than a SFP reticle
Second Focal Plane Optic Details
Second focal plane optics (SFP) feature the reticle behind the magnification lens. This induces the reticle to stay at the very same overall size relative to the quantity of zoom being used. The effect is that the reticle dimensions shift based upon the zoom used to shoot over lengthier ranges given that the reticle markings represent distinct increments which fluctuate with the zoom. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick reticle measurement. These sorts of glass are handy for:
- Far away types of shooting where shooters have increased time to make ballistic computations
- Shooting where most of the shots take place within shorter ranges and spaces
- Shooters who choose a clearer optic picture without room taken up by the bigger FFP reticle
Zoom for Optics
The amount of zoom a scope offers is identified by the diameter, thickness, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Fixed Single Power Lens Optics
A single power rifle scope will have a magnification number designator like 4×32. This indicates the zoom power of the scope is 4x power and the objective lens is 32mm. The zoom of this type of optic can not fluctuate since it is a fixed power scope.
Variable Power Lens Rifle Optic Facts
Variable power rifle scopes can be adjusted between magnification levels. These types of scopes will note the zoom amount in a format such as 2-10×32. These numbers indicate the zoom of the scope could be set between 2x and 10x power. This always involves the powers in-between 2 and 10. The power modification is achieved by working with the power ring part of the scope near the rear of the scope by the eye bell.
Rifle Optic Power Level and Ranges
Here are some suggested scope powers and the distances where they may be effectively used. High power scopes will not be as efficient as lower magnification rifle scope glass because too much magnification can be a negative aspect depending on your shooting distance. The same concept applies to longer distances where the shooter needs to have sufficient power to see exactly where to properly aim the rifle.
Glass Lens Finish
All contemporary rifle scope and optic lenses are coated. Lens finish can be an important aspect of a shooting platform when thinking about high end rifle optics and scope systems.
HD Versus ED Glass Lens Coatings
Some glass companies additionally use “HD” or high-definition lense coverings that employ various processes, chemicals, elements, and polarizations to extract a wide range of color ranges and viewable target definition through the lens. This HD coating is frequently used with more costly, high density glass which drops light’s chance to refract by means of the lens glass. Some scope producers use “HD” to refer to “ED” indicating extra-low dispersion glass. ED deals with how certain colors are presented on the chromatic spectrum and the chromatic deviance or aberration which is also called color distortion or fringing. Chromatic aberration may be visible around things with hard edges and outlines as light hits the item from certain angles.
Single Rifle Glass Lens Coating Versus Multi-Coating
Different optic lenses can also have various coverings applied to them. All lenses generally have at least some type of treatment or coating applied to them before being used in a rifle scope or optic assembly. This is because the lens isn’t just a raw piece of glass. It becomes part of the finely tuned optic. It must have a finishing placed on it so that the lens will be optimally usable in many types of environments, degrees of sunshine (full VS shade), and other shooting conditions.
This lens treatment can protect the lens from scratches while decreasing glare and other less helpful things experienced in the shooting environment while sighting in with the scope. The quality of a single layered lens depends on the scope maker and how much you paid for it.
Some scope makers also make it a point to define if their optic lenses are layered or “multi” covered. This suggests the lens has multiple treatments applied to the surfaces. If a lens gets multiple treatments, it can indicate that a producer is taking several steps to combat various environmental elements like an anti-glare covering, a scratch resistant anti-abrasion covering, followed by a hydrophilic covering. This also does not necessarily mean the multi-coated lens will perform better than a single layered lens. Being “much better” depends upon the producer’s lens treatment solutions and the quality of products used in constructing the rifle glass.
Anti-water Finish for Rifle Glass
Water on a lens does not assist with maintaining a clear sight picture through a scope at all. Lots of top of the line and high-end scope makers will coat their lenses with a hydrophilic or hydrophobic finish.
Rifle Glass Installing Alternatives
Installing options for scopes come in a couple of choices. There are the basic scope rings which are separately installed to the scope and one-piece mounts which cradle the scope. These different kinds of mounts also generally are made in quick release versions which use manual levers which enable rifle shooters to quickly mount and remove the optics.
Rifle Glass Mounting Solutions with Hex Key Rings
Basic, clamp type mounting optic rings use hex head screws to install to the flattop style Picatinny scope mounting rails on the tops of rifles. These forms of scope mounts use a pair of individual rings to support the optic, and are normally made from 7075 T6 billet aluminum which are designed for far away precision shooting. This kind of scope mount is excellent for rifle systems which require a durable, 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 devoted scope setup on a far away hunting or tournament rifle which will seldom need to be modified or adjusted. Blue 242 Loctite threadlocker can also be used to stop the hex screw threads from backing out after they are installed securely in place. An example of these rings are the 30mm style from Vortex Optics. The set normally costs around $200 USD
Quick-Release Cantilever Glass Ring Mounting Solutions
These kinds of quick-release rifle scope mounts can be used to quickly remove a scope from a rifle and reattach it to a different rifle. A wide range of scopes can also be swapped out if they all use a similar designed mount. 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 allows the scope to be sighted in while on the rifle, removed from the rifle, and remounted back on the rifle while keeping precision. These kinds of mounts come in beneficial for rifles which are carried a lot, to take off the scope from the rifle for protection, or for sight systems which are utilized between a number of rifles. An example of this mount type is the 30mm mount designed by the Vortex Optics manufacturer. It usually costs around $250 USD
Sealing and Gas Purging for Rifle Glass Tubes
Wetness inside your rifle scope can wreck a day on the range and your expensive optic by resulting in fogging and producing residue within the scope’s tube. Many scopes protect against moisture from entering the scope tube with a system of sealing O-rings which are water resistant. Usually, these water-resistant scopes can be immersed underneath 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be plenty of moisture prevention for conventional use rifles, unless you plan on taking your rifle aboard a watercraft and are concerned about the optic still working if it goes over the side and you can still recover the firearm.
Gas Purged Rifle Optic Tubes
Another component of preventing the buildup of moisture within the rifle scope tube is filling the tube with a gas like nitrogen. Because this space is currently occupied by the gas, the optic is less affected by temperature shifts and pressure distinctions from the outside environment which might possibly permit water vapor to permeate in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a good rifle scope to look for.
