Description
Rifle Scope Product Details
BSA Optics Sweet .243 4X-12X, 40mm Adjustable Objective, with Rings Rifle Scope (243-412X40AOWRTB)
The BSA sweet 243 AO is specifically designed for the . 243 55 gr, 80gr and 100gr bullets.
Rifle Scope Product Features
Sweet . 243 4X-12X
40mm Adjustable Objective
Rings included
Fully coated glass lenses
W/E adjustment range 35 – Eye relief 3 in – FOV low @ 100′ (Ft) 40/ high 10 – Parallax setting (yds. ) – 7. 5 to INF.
1 year limited
The BSA sweet 243 AO is specifically designed for the . 243 55 gr, 80gr and 100gr bullets.
BSA Optics SWEET .243 AO 4-12×40
Specifically designed for the .243 caliber cartridge
The BSA Sweet .243 AO Rifle Scope is specifically designed for the .243 caliber cartridge. Complete with 3 ballistically calibrated turrets for 55gr, 80gr, and 100 gr cartridges, the Sweet .243 AO also features an adjustable objective, fully coated lenses, 30/30 reticle and 2 pc. weaver rings Matte black finish. Waterproof, shockproof and fogproof.
Magnification low: 4; Magnification high: 12
Objective lens diameter: 40 mm
Adjustment MOA: 1/4
Lens Material: Glass; Lens: Fully Coated
W/E Range: 35; Eye Relief: 3 inches
FOV LOW @ 100′ (ft): 40; FOV HIGH @ 100′ (ft): 10
PARALLAX SETTING (yds): 7.5 to Inf.
Reticle: 30/30
Shockproof, Fogproof, Waterproof
Tube diameter: 1″, one piece; Aluminum Construction
Specification
Magnification low: 4; Magnification high: 12; Objective lens diameter: 40 mm
30/30 Duplex Reticle
1 piece aluminum construction, 1 inch tube
Glass lens material, fully coated
Adjustable Objective
Shockproof, Fogproof, Waterproof
22.30 oz weight; 12.9 in length.
Two Piece weaver style mounts included
243-412X40AOWRTB BSA Optics SWEET .243 AO 4-12×40
Calibrated turrets for 55gr, 80gr, and 100 gr
BSA Optics SWEET .243 AO 3-9×40 BSA Optics SWEET .243 AO 4-12×40
Magnification 3-9 4-12
Objective Diameter 40 mm 40 mm
Adjustable Objective
Lenses Fully Coated Glass Fully Coated Glass
One Piece Aluminum Construction
Shockproof, Fogproof, Waterproof
2 piece Weaver Style Mounts Included
30/30 Duplex Reticle
Length 12.20 in 12.9 in
Weight 21.80 oz 22.30 oz
About the BSA Optics Manufacturer
BSA Optics is a premium producer for weapon scopes, optics, mounts, and other components used for guns like rifles and long guns. They design and make their scopes and related products by choosing elements which are durable and long lasting. This includes the BSA Optics Sweet .243 4X-12X, 40mm Adjustable Objective, with Rings Rifle Scope (243-412X40AOWRTB) by BSA Optics. For more shooting goods, visit their website.
All About Optics
Rifle scopes allow you to exactly align a rifle at different targets by lining up your eye with the target over a range. They accomplish this through zoom using a series of lenses inside the scope. The scope’s alignment can be adjusted to take into account different natural considerations like wind speed and elevation decreases to make up for bullet drop.
The scope’s function is to help the shooter understand precisely where the bullet will hit based upon the sight picture you are viewing with the scope as you align the scope’s crosshair or reticle with the intended point of impact. The majority of modern rifle scopes and optics have around eleven parts which are arranged internally and on the exterior of the scope. These optic pieces include the rifle scope’s body, lenses, windage dials, focus rings, and other parts. Learn about the eleven parts of glass.
Rifle Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Finding the optimal type of rifle scope is based on what type of shooting you plan on doing.
First Focal Plane Optic Info
Focal plane scopes (FFP) come with the reticle in front of the magnifying lens. This causes the reticle to increase in size based upon the amount of magnification being used. The outcome is that the reticle measurements are the same at the amplified range as they are at the non amplified distance. For example, one tick on a mil-dot reticle at 100 yards with no “zoom” is still the same tick at 100 yards with 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, far away types of shooting
- Shooting situations where estimations are minimal
- Experienced shooters who understand their aim point “hold over” as well as “lead” correlations for their long guns
- Shooters who do not mind the reticle is bigger and requires more visual sight area than a SFP reticle
Second Focal Plane Optics
Second focal plane scopes (SFP) come with the reticle behind the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick measurement.
- Long distance styles of shooting where shooters have more time to make ballistic calculations
- Shooting where most of the shots take place within much shorter ranges and proximities
- Shooters who prefer a clearer optic picture without area taken up by the bigger FFP reticle
About Glass Zoom
The level of scope zoom you need on your optic depends on the kind of shooting you choose to do. Almost every style of rifle optic provides some level of magnification. The quantity of magnification a scope provides is identified by the diameter, density, and curvatures of the lenses inside of the rifle optic. The magnifying level of the optic is the “power” of the opic. This implies what the shooter is aiming at through the scope is amplified times the power aspect of what can normally be seen by human eyes.
About Fixed Single Power Lens Rifle Optics
A single power rifle optic comes with a zoom number designator like 4×32. This indicates the magnification power of the scope is 4x power and the objective lens is 32mm. The zoom of this type of optic can not fluctuate because it is a fixed power scope.
Variable Power Lens Scopes
Variable power rifle scopes use enhanced power. The power change is achieved by the power ring part of the scope near the rear of the scope by the eye bell.
Glass Power Level and Ranges
Here are some suggested scope power settings and the distances where they may be effectively used. Remember that higher magnification glass will not be as effective as lower magnification level optics because excessive zoom can be a detractor. The same concept goes for extended distances where the shooter needs increased power to see precisely where to properly aim the rifle at the target.
Lens Finish for Optics
All state-of-the-art rifle optic and scope lenses are coated. Lens covering is a significant aspect of a rifle system when considering high end rifle optics and scope systems.
HD Versus ED Lenses
Some glass companies additionally use “HD” or high-definition glass coverings which use different procedures, polarizations, aspects, and chemicals to enhance numerous color ranges and viewable definition through lenses. This high-definition coating is normally used with greater density lens glass which brings down light’s potential to refract by means of the lens glass. Some scope producers use “HD” to refer to “ED” implying extra-low dispersion glass. ED deals with how colors are represented on the chromatic spectrum and the chromatic aberration or deviance which is also called color distortion or fringing. Chromatic aberration can be visible around objects with hard edges and shapes as light hits the object from certain angles.
Single Covering Versus Multi-Coating for Scopes
Different optic lenses can likewise have different coatings applied to them. All lenses normally have at least some type of treatment or coating used to them prior to being used in a rifle scope or optic.
This lens treatment can offer protection to the lens from scratches while reducing glare and other less beneficial things experienced in the shooting environment while sighting in with the scope. The quality of a single layered lens depends on the scope manufacturer and how much you paid for it.
Some scope manufacturers also make it a point to specify if their optic lenses are layered or “multi” coated. This suggests the lens has several treatments applied to the surfaces of the glass. If a lens receives numerous treatments, it can indicate that a maker is taking multiple actions to combat different environmental factors like an anti-glare finishing, a scratch resistant anti-abrasion coating, followed by a hydrophilic coating. This also does not necessarily suggest the multi-coated lens will perform much better than a single coated lens. Being “better” hinges on the maker’s lens treatment technology and the quality of materials used in developing the rifle optic.
What to Know About Hydrophobic Covering
Water on a lens doesn’t assist with keeping 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 finishing.
Scope Installation Options
Mounting approaches for scopes come in a few options. There are the basic scope rings which are separately installed to the scope and one-piece scope mounts which cradle the scope. These various kinds of mounts also normally are made in quick release versions which use manual levers which permit rifle shooters to rapidly install and remove the scope.
Hex Key Rifle Glass Ring Mounting Solutions
Basic, clamp-on type mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mount rails on rifles. These kinds of scope mounts use a pair of detached rings to support the optic, and are made from 7075 T6 billet aluminum or similar materials which are created for far away accuracy shooting. This form of scope mount is excellent for rifle systems which require a long lasting, rock solid mount which will not shift regardless of just how much the scope is moved or jarring the rifle takes. These are the style of mounts you should get for a specialized scope system on a far away scouting or sniper competition rifle which will almost never need to be modified or adjusted. Blue 242 Loctite threadlocker can also be used on the screws to stop the hex screws from wiggling out after they are installed tightly in place. An example of these mounting rings are the 30mm type made by the Vortex Optics company. The set generally costs around $200 USD
Rifle Scope Mounts with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to rapidly connect and remove a scope from a rifle. A wide range of scopes can also be switched out if they all use a complementary designed mount. The quick detach design is CNC machined 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, taken off of the rifle, and remounted while keeping accuracy. These types of mounts are useful and beneficial for shooting platforms which are transferred a lot, to remove the glass from the rifle for protection, or for sight systems which are used in between a number of rifles. An example of this mount style is the 30mm mount from the Vortex Optics manufacturer. It typically costs around $250 USD
Rifle Scope Tube Sealing and Gas Purging
Wetness inside your rifle optic can ruin a day of shooting and your expensive optic by causing fogging and developing residue inside of the scope tube. The majority of scopes avoid moisture from entering the scope tube with a system of sealing O-rings which are water resistant.
Gas Purged Glass Tubes
Another element of preventing the buildup of wetness inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Since this area is currently occupied by the gas, the glass is less altered by temperature alterations and pressure distinctions from the outdoor environment which might potentially allow water vapor to permeate in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a decent rifle scope to look for.
