Description
Rifle Scope Product Details
BSA Optics Sweet .450 Bushmaster AO 3-9X40, Black
The BSA Sweet .450 AO Rifle Scope is specifically designed for the .450 Bushmaster catridge. Complete with 3 ballistically calibrated turrets for 245gr, 250gr, and 260gr rounds, the Sweet .450 AO also features an adjustable objective, fully coated lenses, 30/30 reticle and 2 pc. weaver rings and matte black finish. Waterproof, shockproof and fogproof.
Rifle Scope Product Features
3-9X40 Sweet Series .450 Bushmaster Adjustable Objective
Specifically designed for the .450 Busmaster cartridge
3 ballistically calibrated turrets for 245gr, 250gr, and 260gr rounds
Fully coated lenses
30/30 reticle
Rings included
Shock proof, Waterproof, Fogproof
BSA Optics Sweet 450 Bushmaster AO
Specifically designed for the .450 Bushmaster AO
The BSA Sweet 450 Bushmaster AO Rifle Scope is specifically designed for the 450 Bushmaster cartridge. Complete with 3 ballistically calibrated turrets for 245gr, 250gr, and 260 gr cartridges, the Sweet 450 Bushmaster 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: 3; Magnification high: 9
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): 34.2; FOV HIGH @ 100′ (ft): 11.5
PARALLAX SETTING (yds): 7.5 to Inf.
Reticle: 30/30
Shockproof, Fogproof, Waterproof
Tube diameter: 1″, one piece; Aluminum Construction
Specification
Magnification low: 3; Magnification high: 9; 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
22.3 oz weight; 12.20 in length.
Two Piece weaver style mounts included
450-39X40AOWRTB BSA Optics Sweet 450 Bushmaster AO
Includes 3 ballistically calibrated turrets for 245gr, 250gr, and 260gr rounds
BSA Optics Sweet 350 Legend AO BSA Optics SWEET 450 Bushmaster
Magnification 3-9 3-9
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
Designed for caliber .350 Legend cartridge 450 Bushmaster
Length 12.20 in 12.20 in
Weight 22.30 oz 22.30 oz
About the BSA Optics Company
BSA Optics is a premium supplier for rifle scopes, optics, mounting solutions, and other add-ons used for guns like rifles and long guns. They innovate and supply their scopes, mounts, and related products choosing building materials which are resilient and long lasting. This includes the BSA Optics Sweet .450 Bushmaster AO 3-9X40, Black by BSA Optics. For more shooting items, visit their website.
What You Need to Know About Rifle Scopes
Rifle scopes permit you to specifically align a rifle at various targets by aligning your eye with the target over a distance. They do 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 numerous environmental factors like wind and elevation to make up for bullet drop.
The scope’s function is to help shooters understand exactly where the bullet will land based on the sight picture you are seeing via the scope as you line up the scope’s crosshair or reticle with the target. The majority of modern-day rifle optics have around eleven parts which are located inside and outside of the scope body. These scope parts consist of the rifle scope’s body, lenses, windage dials, objective focus rings, and other elements. Learn about the eleven parts of scopes.
Rifle Scope Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The style of focal plane an optic has determines where the reticle or crosshair lies relative to the optic’s zoom. It actually suggests the reticle is behind or before the magnifying lens of the optic. Deciding upon the most beneficial style of rifle scope is based upon what variety of shooting you anticipate undertaking.
First Focal Plane Scopes
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These kinds of scopes are useful for:
- Quick acquisition, long distance kinds of shooting
- Shooting scenarios where calculations are marginal
- Experienced shooters who understand their target “hold over” and also “lead” relationships for their firearms
- Shooters who don’t mind the reticle is enlarged and uses up more visual sight area than a SFP reticle
About Second Focal Plane Scopes
Second focal plane optics (SFP) include 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 reticle measurement.
- Long distance kinds of shooting where shooters have more time to make ballistic computations
- Shooting where most shots occur within much shorter proximities and ranges
- Shooters who choose a clearer optic sight picture without area taken up by the bigger FFP reticle
Scope Magnification
The level of scope zoom you need on your optic depends on the style of shooting you choose to do. Just about every type of rifle glass delivers some degree of magnification. The amount of zoom a scope delivers is determined by the diameter, density, and curves of the lenses within the rifle optic. The magnifying level of the optic is the “power” of the scope. This means what the shooter is observing through the scope is amplified times the power aspect of what can generally be seen by human eyes.
Fixed Power Lens Rifle Scopes
A single power rifle optic will have a magnification number designator like 4×32. This implies the magnification power of the scope is 4x power and the objective lens is 32mm. The magnification of this type of scope can not change given that it is a set power scope.
Variable Power Lens Rifle Scopes
Variable power rifle scopes use enhanced power. The power change is achieved by using the power ring part of the scope near the back of the scope by the eye bell.
Power Levels and Range Correlations
Here are some advised scope power settings and the ranges where they may be successfully used. High power optics will not be as beneficial as lower powered scopes because too much magnification can be a bad thing. The same idea goes for longer ranges where the shooter needs to have adequate power to see precisely where to properly aim the rifle at the target.
Details on Optic Lens Finishing
All current rifle optic lenses are layered. Lens covering is a significant element of a shooting platform when looking into high end rifle optics and scope systems.
ED Versus HD Rifle Glass
Some rifle scope companies even use “HD” or high-def lens finishes that employ different processes, polarizations, aspects, and chemicals to enhance various colors and viewable target visibility through the lens. This HD finish is commonly used with more costly high density lens glass which drops light’s opportunity to refract by means of the lens glass. Some scope vendors use “HD” to describe “ED” signifying extra-low dispersion glass. ED handles how certain 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 noticeable over things with hard outlines as light hits the object from specific angles.
Single Rifle Optic Lens Finish Versus Multi-Coating
Various scope lenses can even have various coatings applied to them. All lenses usually have at least some type of treatment or covering applied to them prior to being used in a rifle scope or optic assembly. This is due to the fact that the lens isn’t just a raw piece of glass. It is part of the carefully tuned optic. It requires a coating to be applied to it so that the lens will be optimally functional in lots of types of environments, degrees of light (full VS shaded), and other shooting conditions.
This lens treatment can protect the lens from scratches while minimizing glare and other less beneficial things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends on the scope maker and how much you paid for it.
Some scope producers similarly make it a point to specify if their optic lenses are covered or “multi” covered. Being “better” depends on the maker’s lens treatment technology and the quality of materials used in constructing the rifle scope.
Anti-water Lens Finishes
Water on a scope’s lens doesn’t help with preserving a clear sight picture through an optic at all. Numerous top of the line or high-end scope producers will coat their lenses with a hydrophilic or hydrophobic finishing. The Steiner Optics Nano-Protection is a fine example of this kind of treatment. It provides protection for the surface area of the Steiner optic lens so the water molecules can not bind to it or develop surface tension. The result is that the water beads move off of the scope to keep a clear, water free sight picture.
Scope Installing Choices
Installing options for scopes come in a few choices. There are the standard scope rings which are individually installed to the scope and one-piece scope mounts which cradle the scope. These various types of mounts also typically can be found in quick release versions which use toss levers which permit rifle operators to rapidly mount and dismount the scope.
Rifle Scope Mounts with Hex Key Rings
Normal, clamp style mounting scope rings use hex head screws to mount to the flattop design Picatinny scope mount rails on rifles. These types of scope mounts use two different rings to support the optic, and are often made from 7075 T6 billet aluminum which is developed for long distance precision shooting. This type of scope mount is excellent for rifles which need a durable, sound mounting solution which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Rifle Glass Ring Mounts
These types of quick-release rifle scope mounts can be used to rapidly detach a scope from a rifle and reattach it to a different rifle. A wide range of scopes can also be switched out if they all use a complementary style mount. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten solidly to a flat top type Picatinny rail. This enables the scope to be sighted in while on the rifle, removed from the rifle, and remounted while retaining accuracy. These kinds of mounts come in beneficial for rifles which are moved a lot, to take off the glass from the rifle for protection, or for aiming systems which are used in between numerous rifles. An example of this mount type is the 30mm mount from the Vortex Optics brand. It typically costs around $250 USD
Rifle Scope Tube Sealing and Gas Purging
Wetness inside your rifle optic can destroy a day of shooting and your costly optic by causing fogging and producing residue inside of the scope tube. Many scopes avoid moisture from going into the scope tube with a system of sealing O-rings which are waterproof.
Optic Gas Purging
Another part of preventing the buildup of wetness inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Considering that this space is currently taken up by the gas, the scope is less influenced by temperature level alterations and pressure distinctions from the outdoor environment which may possibly enable 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.
