Description
Rifle Scope Product Details
BARSKA 4X20 Rimfire Riflescope
The 4×20 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.
Rifle Scope Product Features
About this item
Precision Aiming: The 4x 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.
Included components: Mounting Rings, Lens Covers and Lens Cloth
AC10730
Specs
Item: AC10730
Field of View(ft @ 100yds): 18.3 @ 4x
Eye Relief: 2.55 inch
Exit Pupil: 5mm
Focal Plane: Second
Click Value: 1/4 MOA
Length: 10.55″ ; Weight: 4.8 oz ; 3/4″ Tube Diameter
Included: Set of rings ; lens cloth
4x20mm Rimfire Scope
by Barska
The 4×20 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.
4x Magnification
20mm Objective Lens
30/30 Reticle
Coated Optics
Windage & Elevation Turrets
Durable, Light Weight Riflescope
This 4×20 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.
Magnification
4x magnification 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.
AC10730 AC10040 AC10038 AC10380 AC10002 AC10000
Magnification 4x 4x 4x 3-9x 3-7x 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) 10.55″ 11.93″ 11.93″ 12″ 10.5″ 10.63″
Product Weight (oz) 4.8 oz 16.08 oz 16.08 oz 11.46 oz 4.87 oz 3.63 oz
About the BARSKA Manufacturer
BARSKA is a premium maker for long gun scopes, optics, mounts, and other add-ons used for firearms like rifles and long guns. They innovate and make their mounts and related products by choosing materials which are durable and long lasting. This includes the BARSKA 4X20 Rimfire Riflescope by BARSKA. For more shooting products, visit their site.
Rifle Optic Details
Rifle scopes enable you to precisely aim a rifle at different targets by lining up your eye with the target over a range. They accomplish this through magnification by using a series of lenses within the scope. The scope’s alignment can be adapted for consideration of different ecological elements like wind speed and elevation increases or decreases to make up for bullet drop.
The scope’s purpose is to understand exactly where the bullet will hit based upon the sight picture you are seeing using the optic as you align the scope’s crosshair or reticle with the target. The majority of contemporary rifle scopes have around 11 parts which are arranged internally and externally on the optic. These optic pieces include the rifle scope’s body, lenses, adjustment turrets, objective focus rings, and other parts. Learn about the eleven parts of rifle optics.
Rifle Optic Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The sort of focal plane a scope has decides where the reticle or crosshair is located relative to the optic’s magnifying adjustments. It literally indicates the reticle is located behind or in front of the magnification lens of the optic. Considering the best style of rifle optic depends upon what kind of shooting you plan on doing.
About First Focal Plane Optics
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These styles of scopes are useful for:
- Quick acquisition, long distance kinds of shooting
- Shooting scenarios where computations are low
- Experienced shooters who understand their aim point “hold over” and “lead” equations for their rifles
- Shooters who do not mind the reticle is bigger and requires more visual eyesight space than a SFP reticle
Second Focal Plane Scopes
Second focal plane glass (SFP) include the reticle to the rear of the zoom lens. This induces the reticle to stay at the exact same overall size relative to the volume of magnification being used. The effect is that the reticle measurements adjust based on the magnification employed to shoot over greater distances given that the reticle measurements present different increments which change with the zoom. In the FFP example with the SFP glass, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick measurement. These types of optics are beneficial for:
- Long distance forms of shooting where shooters have additional time to make ballistic calculations
- Shooting where most of the shots take place within shorter spaces and ranges
- Shooters who choose a clearer optic sight picture without space taken up by the enlarged FFP reticle
Rifle Scope Magnification
The measure of scope magnification you need on your optic is based on the sort of shooting you desire to do. Almost every type of rifle glass offers some amount of zoom. The level of magnification a scope provides is determined by the diameter, density, and curves of the lenses within the rifle scope. The magnifying level of the scope is the “power” of the scope. This means what the shooter is looking at through the scope is amplified times the power factor of what can typically be seen by human eyes.
Fixed Power Lens Rifle Optic Details
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 and the objective lens is 32mm. The zoom of this kind of optic can not fluctuate because it is a fixed power optic.
Variable Power Lens Scope Info
Variable power rifle scopes use variable power levels. The power modification is accomplished using the power ring part of the scope near the back of the scope by the eye bell.
Power and Range
Here are some suggested scope power levels and the ranges where they could be successfully used. Bear in mind that high power scopes will not be as efficient as lower powered optics because too much magnification can be a detractor. The same concept goes for longer distances where the shooter needs adequate power to see exactly where to best aim the rifle.
Rifle Scope Lens Finishing
All top teir rifle optic and scope lenses are covered. Lens finishing is a vital aspect of a rifle system when thinking about high end rifle optics and scope systems.
HD Versus ED Lens Coatings
Some scope makers even use “HD” or high-definition lens finishes which make the most of various procedures, aspects, polarizations, and chemical applications to draw out a wide range of color ranges and viewable definition through the lens. This HD covering is frequently used with more costly, high density lens glass which drops light’s ability to refract through the lens glass. Some scope suppliers use “HD” to refer to “ED” suggesting extra-low dispersion glass. ED handles how certain colors are presented on the chroma spectrum and the chromatic aberration which is also called color distortion or fringing. Chromatic aberration may be obvious around things with hard edges and shapes as light hits the item from various angles.
Optic Lens Single Finishing Versus Multi-Coating
Different optic lenses can likewise have different finishes used to them. All lenses normally have at least some type of treatment or coating applied to them prior to being used in a rifle scope or optic.
Single covered lenses have a treatment applied to them which is normally a protective and enhancing multi-purpose treatment. This lens treatment can preserve the lens from scratches while reducing glare and other less helpful things experienced in the shooting environment while sighting in with the optic. The quality of a single coated lens depends upon the scope company and just how much you paid for it. The scope’s maker and cost are indicators of the lens quality.
Some scope manufacturers also make it a point to define if their optic lenses are covered or “multi” covered. Being “better” depends on the manufacturer’s lens treatment technology and the quality of materials used in developing the rifle scope.
Anti-water Glass Lens Coating
Water on a lens does not assist with preserving a clear sight picture through a scope at all. Lots of top of the line and military grade optic makers will coat their lenses with a hydrophilic or hydrophobic finishing.
Alternatives for Installing Rifle Scopes on Long Guns
Installing options for scopes are available in a few choices. There are the standard scope rings which are separately mounted to the optic and one-piece scope mounts which cradle the scope. These different kinds of mounts also generally come in quick release variations which use toss levers which enable rifle shooters to quickly install and remove the scope.
Hex Key Optic Ring Mounting Solutions
Standard, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope installation rails on rifles. These types of scope mounts use a couple of separate rings to support the optic, and are often made from 7075 T6 billet aluminum which are created for long distance accuracy shooting. This type of scope install is excellent for rifles which require a long lasting, rock solid mounting solution which will not move no matter how much the scope is moved or abused.
Rifle Optic Mounts 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. Multiple scopes can even be swapped out if they all use a compatible design mount. These types of mounts are handy for rifles which are transferred a lot, to remove the optic from the rifle for protecting the scope, or for optics which are used in between multiple rifles or are situationally focused.
Rifle Scope Tube Sealing and Gas Purging
Wetness inside your rifle glass can ruin a day of shooting and your expensive optic by inducing fogging and producing residue inside of the scope tube. A lot of optics prevent humidity from going into the optical tube with a series of sealing O-rings which are waterproof. Usually, these 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 ample humidity prevention for standard use rifles for hunting and sporting purposes, unless you intend on taking your rifle on a boat and are concerned about the optic still functioning if it is submerged in water and you can still find the firearm.
Gas Purged Scope Tubes
Another element of preventing the accumulation of wetness inside of the rifle optic tube is filling the tube with a gas like nitrogen. Given that this space is already occupied by the gas, the scope is less altered by temp shifts and pressure distinctions from the outside environment which could possibly enable water vapor to permeate in around the seals to fill the void which would otherwise be there. These are good qualities of a good rifle scope to seek out.
