Description
Rifle Scope Product Details
BARSKA AC11674 2nd Generation 10-40×50 Rifle Scope Illuminated Milt Dot Reticle, Black
The 10-40×50 IR 2nd Generation Scope by Barska is a powerful rifle scope that performs well in long distance targeting situations. Multi-coated optics give the 10-40×50 Scope is sharp and has a bright image with excellent contrast even at extreme distances. An Illuminated Red/Green Mil-Dot Reticle greatly enhances targeting in low-light situations with 5 levels of brightness. Also includes protective scope cap and a set of rings.
Rifle Scope Product Features
About this item
Precision Aiming: The 10-40x magnification scope features adjustable side parallax and 1/8 MOA click adjustments for precision accuracy.
Quality Construction: The scope comes with 50mm objective lens and multi-coated optics, providing impressive viewing clarity. Tube diameter 30mm.
Illuminated Reticle: The illuminated mil-dot reticle with adjustable brightness and dual color settings can be used to target with ease.
External Locking Knobs: The external locking windage and elevation prevents the knobs from accidental adjustments and can be reset to zero.
Robust Design: The scope is built with extra-rigid construction, being waterproof, fogproof, and shockproof. Comes with scope caps and set of rings.
Sport type: Hunting
Included components: Rings, Scope caps, Battery and Lens Cloth
AC11674
FOV: 9.94ft / 3.02m @10x , 2.5ft / .76m @ 40x
Tube Diameter: 30mm
Eye Relief: 3.3 in
Exit Pupil: 11.43mm – 4mm
Focal Plane: Second
Parallax Adjustment: Yes
10-40x50mm IR 2nd Generation Sniper Scope
by Barska
The 10-40×50 IR 2nd Generation Sniper Scope by Barska is a powerful rifle scope that performs well in long distance targeting situations. Multi-coated optics give the 10-40×50 Sniper Scope a sharp, bright image with excellent contrast, even at extreme distances. An Illuminated Red/Green Mil-Dot Reticle greatly enhances targeting in low-light situations with 5 levels of brightness. Also includes protective scope cap and a set of rings.
Illuminated Red/Green Mil-Dot Reticle
Adjustable Reticle Brightness
Side Adjustable Parallax
Angled Sniper Edge Sun Shade
Second Focal Plane Reticle
Features
Side Parallax Adjustment
Parallax Adjustment allows user to adjust according to distance they are shooting at from.
Built in Sunshade
Built in sniper edged sun shade allows reduce glare for use in bright sun.
Zoom Adjustment
10-40x Adjustable zoom allows user to get up close to the target.
Reticle
Illuminated Red / Green Mil Dot Reticle with adjustable brightness.
AC11674 AC11670 AC11672 AC11668
Magnification 10x – 40x 4x – 16x 6x – 24x 3x – 9x
Objective Lens 50mm 50mm 50mm 42mm
Lens Coating Multi-Coated Multi-Coated Multi-Coated Multi-Coated
Click Value (MOA) 1/8 1/8 1/8 1/4
Length (in) 17.5 14.5 16 10
Product Weight (oz) 29.6 23.2 24.8 20
About the BARSKA Brand
BARSKA is a premium maker for weapon scopes, optics, mounting solutions, and other add-ons used for firearms like rifles and long guns. They innovate and manufacture their products using elements which are long lasting and resilient. This includes the BARSKA AC11674 2nd Generation 10-40×50 Rifle Scope Illuminated Milt Dot Reticle, Black by BARSKA. For additional shooting products, visit their site.
Optic Info
Rifle scopes allow you to exactly align a rifle at different targets by lining up your eye with the target at range. They do this through magnification by using a series of lenses inside the scope. The scope’s alignment can be adapted to take into account many environmental considerations like wind speed and elevation decreases to make up for bullet drop.
The scope’s purpose is to help shooters understand precisely where the bullet will land based on the sight picture you are viewing using the scope as you align the scope’s crosshair or reticle with the target. The majority of modern-day rifle scopes and optics have around eleven parts which are arranged inside and outside of the scope body. These optic pieces consist of the rifle scope’s body, lenses, windage turrets, objective focus rings, and other elements. See all eleven parts of scopes.
The Styles of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The type of focal plane an optic has determines where the reticle or crosshair lies relative to the scopes magnification. It literally means the reticle is situated behind or in front of the magnification lens of the optic. Choosing the most effective type of rifle glass depends upon what type of shooting or hunting you anticipate undertaking.
About First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. These styles of scopes are beneficial for:
- Quick acquisition, far away types of shooting
- Shooting scenarios where calculations are minor
- Experienced shooters who have an idea for their target “hold over” plus “lead” equations for their rifles
- Shooters who do not mind the reticle is bigger and occupies more visual sight area than a SFP reticle
Info About Second Focal Plane Glass
Second focal plane glass (SFP) feature the reticle to the rear of the zoom lens. This causes the reticle to stay at the exact same overall size in connection with the volume of magnification being used. The result is that the reticle measurements change based on the magnification applied to shoot over greater distances because the reticle markings represent various increments which fluctuate with the magnification. In the FFP example with the SFP optic, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick. These varieties of glass work for:
- Far away types of shooting where shooters have increased time to make ballistic estimations
- Shooting where most shots happen within much shorter ranges and spaces
- Shooters who prefer a clearer optic picture with less area used up by the larger sized FFP reticle
Magnification for Scopes
The measure of scope zoom you need on your scope depends upon the form of shooting you wish to do. Nearly every type of rifle glass delivers some amount of zoom. The level of magnification a scope provides is established by the dimension, density, and curvatures of the lenses inside of the rifle optic. The magnification level of the scope is the “power” of the opic. This means what the shooter is looking at through the scope is magnified times the power element of what can normally be seen by human eyes.
Fixed Single Power Lens Scope Info
A single power rifle scope uses a magnification number designator like 4×32. This implies the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of scope can not fluctuate since it is a fixed power optic.
Adjustable Power Lens Scope Facts
Variable power rifle scopes can be adjusted between magnification increments. It will note the zoom degree in a format such as 2-10×32. These numbers imply the magnification of the scope could be adjusted in between 2x and 10x power. This additionally includes the power levels in-between 2 and 10. The power manipulation is achieved utilizing the power ring part of the scope near the rear of the scope by the eye bell piece.
Glass Power and Ranges
Here are some recommended scope power levels and the distances where they may be efficiently used. High power scopes will not be as effective as lower powered scopes considering too much zoom can be a bad thing. The same concept relates to extended ranges where the shooter needs adequate power to see exactly where to best aim the rifle at the target.
About Lens Coating
All current rifle scope lenses are layered. Lens coating can be an important aspect of a rifle when looking into high end rifle optics and scope setups.
Details on Glass Lens Coatings – HD Versus ED
Some scope producers even use “HD” or high-definition lense finishes that take advantage of various procedures, polarizations, components, and chemicals to enhance various colors and viewable target definition through lenses. This high-def coating is frequently used with higher density lens glass which lowers light’s opportunity to refract by means of the lens glass. Some scope brands use “HD” to describe “ED” suggesting extra-low dispersion glass. ED deals with how certain colors are represented on the chromatic spectrum and the chromatic deviance or aberration which is also called color distortion or fringing. Chromatic aberration is often noticeable around items with hard outlines as light hits the item from certain angles.
Single Rifle Glass Lens Covering Versus Multi-Coating
Different scope lenses can even have various finishes applied to them. All lenses generally have at least some kind of treatment or finish 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 requires a coating to be applied to it so that it will be efficiently usable in many types of environments, degrees of sunlight (full VS shade), and other shooting conditions.
Single covered lenses have a treatment applied to them which is typically a protective and improving multi-purpose treatment. This lens treatment can preserve the lens from scratches while reducing glare and other less advantageous things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends upon the scope producer and just how much you spent paying for it. Both the make and cost are signs of the lens quality.
Some scope manufacturers also make it a point to define if their optic lenses are covered or “multi” covered. This indicates the lens has had several treatments applied to them. If a lens gets several treatments, it can indicate that a manufacturer is taking numerous steps to combat various natural factors like an anti-glare finishing, a scratch resistant anti-abrasion finishing, followed by a hydrophilic covering. This additionally does not necessarily suggest the multi-coated lens is better than a single layered lens. Being “much better” depends upon the maker’s lens treatment techniques and the quality of components used in constructing the rifle optic.
Hydrophobic Covering for Glass
Water on a lens does not help with keeping 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 hydrophobic or hydrophilic covering.
Rifle Scope Installing Options
Installing solutions for scopes are available in a couple of choices. There are the basic scope rings which are individually mounted to the optic and one-piece mounts which cradle the scope. These different kinds of mounts also normally are made in quick release variations which use manual levers which permit rifle operators to quickly mount and remove the scopes.
Glass Mounting Solutions with Hex Key Rings
Standard, clamp style mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mount rails on rifles. These types of scope mounts use two different rings to support the optic, and are made from 7075 T6 billet aluminum which is designed for long range precision shooting. This type of scope install is excellent for rifles which need a durable, rock solid mounting solution which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Scope Rings
These kinds of quick-release rifle scope mounts can be used to rapidly connect and detach a scope from a rifle. If they all use a comparable style mount, a number of scopes can also be switched out in the field. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers attach securely to a flat top style Picatinny rail. This allows the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while retaining precision. These types of mounts are useful and convenient for rifles which are shipped a lot, to take off the glass from the rifle for protection, or for aiming systems which are used between multiple rifles. An example of this mount style is the 30mm mount from the Vortex Optics manufacturer. It normally costs around $250 USD
Rifle Optic Tube Sealing and Gas Purging
Wetness inside your rifle optic can mess up a day of shooting and your expensive optic by triggering fogging and developing residue inside of the scope tube. Most scopes avoid wetness from getting in the scope tube with a system of sealing O-rings which are water resistant.
About Optic Tube Gas Purging
Another part of preventing the accumulation of wetness inside of the rifle scope tube is filling the tube with a gas like nitrogen. Since this area is currently occupied by the gas, the scope is less impacted by climate shifts and pressure distinctions from the outside environment which may potentially permit water vapor to leak in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a good rifle scope to seek out.
