Description
Rifle Scope Base Product Details
Browning Picatinny Base AB3 (Short Action) (20 MOA)
Picatinny Base for Browning AB3 (Short Action) (20 MOA)
Rifle Scope Base Product Features
Picatinny Base for Browning AB3 (Short Action) (20 MOA)
About the Browning Manufacturer
Browning is a premium company for weapon scopes, optics, mounting solutions, and other add-ons used for firearms like rifles and long guns. They create and make their scopes, mounts, and related products making the most of materials which are durable and long lasting. This includes the Browning Picatinny Base AB3 (Short Action) (20 MOA) by Browning. For additional shooting products, visit their site.
What You Need to Know About Glass
Rifle scopes allow you to exactly align a rifle at various targets by aligning your eye with the target over a distance. They accomplish this through magnification by employing a set of lenses within the scope. The scope’s alignment can be adjusted to take into account separate environmental things like wind speed and elevation 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 viewing using the scope as you align the scope’s crosshair or reticle with the intended target. The majority of modern rifle optics have about eleven parts which are located within and externally on the scope body. These optic pieces include the rifle scope’s body, lenses, windage and elevation dials or turrets, objective focus rings, and other parts. See all eleven parts of a rifle optical system.
About Scope Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Choosing the best type of rifle scope is based on what type of shooting you plan on doing.
About First Focal Plane Optics
First focal plane glass (FFP) come with the reticle ahead of the zoom lens. This induces the reticle to increase in size based on the level of zoom being used. The benefit is that the reticle measurements are the same at the enhanced distance as they are at the non magnified range. One tick on a mil-dot reticle at 100 yards with no “zoom” is still the very same tick at one hundred yards with 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, long distance kinds of shooting
- Shooting scenarios where estimations are marginal
- Experienced shooters who have an idea for their aim point “hold over” and “lead” correlations for their long guns
- Shooters who don’t mind the reticle is enlarged and uses up more visual eyesight space than a SFP reticle
About Second Focal Plane Optics
Second focal plane scopes (SFP) feature the reticle behind the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Long distance forms of shooting where shooters have additional time to make ballistic calculations
- Shooting where most shots take place within much shorter distances and ranges
- Shooters who like a clearer optic sight picture with less space taken up by the larger size FFP reticle
Rifle Glass Magnification
The measure of scope zoom you need is based on the type of shooting you want to do. Nearly every type of rifle scope delivers some level of zoom. The quantity of zoom a scope supplies is identified by the diameter, thickness, and curves of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the glass. This signifies what the shooter is observing through the scope is magnified times the power aspect of what can usually be seen by human eyes.
About Fixed Power Lens Rifle Optics
A single power rifle scope will have a magnification number designator like 4×32. This means the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this kind of optic can not adjust considering that it is a fixed power optic.
Adjustable Power Lens Glass Facts
Variable power rifle scopes have adjustable power. It will note the zoom level in a configuration such as 2-10×32. These numbers suggest the magnification of the scope can be changed between 2x and 10x power. This additionally involves the power levels in-between 2 and 10. The power adaptation is achieved utilizing the power ring part of the scope near the rear of the scope by the eye bell piece.
The Power and Range of Rifle Scopes
Here are some suggested scope power levels and the distances where they can be successfully used. Bear in mind that high power glass will not be as practical as lower powered optics since excessive zoom can be a negative thing in certain situations. The same concept applies to longer distances where the shooter needs adequate power to see exactly where to properly aim the rifle at the target.
Details on Lens Finishing
All modern-day rifle scope and optic lenses are coated. Lens finishing can be a significant element of a rifle’s setup when buying high end rifle optics and scope equipment.
ED Versus HD Rifle Glass
Some scope brands also use “HD” or high-definition lens coverings which use different processes, polarizations, chemicals, and components to draw out different colors and viewable definition through the lens. Some scope manufacturers use “HD” to refer to “ED” implying extra-low dispersion glass.
Single Finish Versus Multi-Coating for Rifle Glass
Different optic lenses can also have various coatings applied to them. All lenses normally have at least some type of treatment or finish used to them before they are used in a rifle scope or optic.
Single layered lenses have a treatment applied to them which is typically a protective and improving multi-purpose treatment. This lens treatment can shield the lens from scratches while decreasing glare and other less advantageous things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends on the scope designer and how much money you spent on it. Both are indications of the lens quality.
Some scope manufacturers also make it a point to define if their optic lenses are covered or “multi” coated. This implies the lens has had several treatments applied to the surfaces. If a lens gets numerous treatments, it can show that a producer is taking several steps to fight various environmental aspects like an anti-glare covering, a scratch resistant anti-abrasion finish, followed by a hydrophilic finish. This additionally does not necessarily mean the multi-coated lens will perform much better than a single covered lens. Being “much better” depends on the producer’s lens treatment innovation and the quality of glass used in building the rifle optic.
Scope Lens Anti-water Covering
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 high-end scope companies will coat their lenses with a hydrophobic or hydrophilic coating.
Scope Mounting Alternatives
Installing options for scopes can be found in a few choices. There are the standard scope rings which are separately installed to the scope and one-piece scope mounts which cradle the scope. These various types of mounts also typically come in quick release variations which use throw levers which enable rifle shooters to rapidly install and remove the scopes.
Hex Key Optic Ring Mounts
Basic, clamp style mounting optic rings use hex head screws to fix to the flattop design Picatinny scope mounting rails on rifles. These kinds of scope mounts use a pair of detached rings to support the optic, and are normally made from 7075 T6 billet aluminum or similar materials which are designed for far away accuracy shooting. This type of scope mount is great for rifles which require a resilient, hard use mount which will not move regardless of how much the scope is moved or abuse the rifle takes. These are the type of mounts you want for a faithful scope setup on a long distance scouting or competitors long gun that will pretty much never need to be altered or adjusted. Blue 242 Loctite threadlocker can additionally be used to prevent the hex screw threads from wiggling out after they are installed firmly in position. An example of these rings are the 30mm type from Vortex Optics. The set generally costs around $200 USD
Glass Mounts with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to rapidly attach and detach a scope from a rifle. If they all use a similar design mount, a number of scopes can also be swapped out on the range. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers attach tightly to a flat top style Picatinny rail. This enables the scope to be sighted in while on the rifle, removed from the rifle, and remounted while retaining the original sighting settings. These types of mounts come in handy for rifles which are transported a lot, to remove the scope glass from the rifle for protection, or for aiming systems which are employed between several rifles. An example of this mount type is the 30mm mount from Vortex Optics. It normally costs around $250 USD
Rifle Scope Tube Sealing and Gas Purging
Moisture inside your rifle optic can mess up a day of shooting and your pricey optic by causing fogging and developing residue inside of the scope tube. Many scopes avoid wetness from getting in the scope tube with a system of sealing O-rings which are waterproof.
Info on Optic Tube Gas Purging
Another element of avoiding the accumulation of wetness within the rifle optic’s tube is filling the tube with a gas like nitrogen. Considering that this space is currently taken up by the gas, the glass is less influenced by climate changes and pressure distinctions from the outside environment which may possibly allow water vapor to seep in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to look for.
