Description
Rifle Scope Product Details
BSA Optics Optix Hunting Rifle Scope Series 4-12 X 40 with BDC-8 Reticle
The new OPTIX series offers fully multi-coated lenses, one-piece aluminum tube construction, low profile zero-reset turrets, fast focus, two-piece weaver rings, as well as BSA’s new BDC-8 reticle.
Rifle Scope Product Features
4-12 X 40mm objective.
New BSA BDC-8 reticle.
One-piece aluminum tube construction, low profile zero-reset turrets, fast focus.
Optix Premium Hunting Series Scopes from BSA
Waterproof, Shockproof and Fogproof.
Two-piece weaver style rings included.
Multi-coated lenses.
W/E adjustment range 35 – Eye relief 3. 7-4 in – FOV low @ 100′ (Ft) 23. 9 – Parallax setting (yds. ) – 100
BSA Optics Optix Hunting Rifle Scope Series 4-12 X 40 with BDC-8 Reticle
Bright, dependable scope for every type of hunter
The new BSA OPTIX Hunting Series offer fully multi-coated lenses, one-piece aluminum tube construction, low profile zero-reset turrets, fast focus, two-piece weaver rings, as well as BSA’s new BDC-8 reticle. Matte black finish. Waterproof, Shockproof and Fogproof. We know how important it is to have a scope that you can trust. That’s why we want to be able to offer bright, dependable scopes to every type of hunter.
Magnification low: 4; Magnification high: 12
Objective lens diameter: 40 mm
Adjustment MOA: 1/4
Lens Material: Glass; Lens: Fully Multi-Coated
W/E Range: 35; Eye Relief: 3.7-4 inches
FOV LOW @ 100′ (ft): 23.9; FOV HIGH @ 100′ (ft): 8
PARALLAX SETTING (yds): 100
Reticle: BDC-8
Shockproof, Fogproof, Waterproof
Tube diameter: 1″, one piece; Aluminum Construction
Specification
Magnification low: 4; Magnification high: 12; Objective lens diameter: 40 mm
BDC-8 reticle
1 piece aluminum construction, 1 inch tub.
Glass lens material, fully multi-coated
Adjustment MOA: 1/4
Shockproof, Fogproof, Waterproof
2 piece Weaver style mounts included
14.25 oz weight; 12.3 in length.
HS4-12X40TB Optix Hunting Scope
Bright, dependable scope for every type of hunter
BSA Optics Optix Hunting Series 4.5-18 X 44 AO IR Rifle Scope BSA Optics Optix Hunting Series 4-12 X 40 Rifle Scope BSA Optics Optix Hunting Series 3-9 X 40 Rifle Scope
Magnification 4.5-18 4-12 3-9
Objctive Diameter 44 mm 40 mm 40 mm
BDC-8 Reticle Yes, illuminated red and green Yes Yes
Fully Multi-Coated Glass Lenses
One Piece Aluminum Construction
Shockproof, Fogproof, Waterproof
2 piece Weaver style mounts included
MOA 1/4 1/4 1/4
Length 13.4 in 12.3 in 11.75 in
Weight 20.9 oz 14.25 oz 14.00 oz
About the BSA Optics Brand
BSA Optics is a premium maker for rifle scopes, optics, mounts, and other add-ons used for firearms like rifles and long guns. They create and supply their scopes, mounts, and related products by using elements which are durable and long lasting. This includes the BSA Optics Optix Hunting Rifle Scope Series 4-12 X 40 with BDC-8 Reticle by BSA Optics. For more shooting goods, visit their website.
Glass Info
Rifle scopes permit you to precisely aim a rifle at various targets by aligning your eye with the target over a distance. They accomplish this through zoom by using a set of lenses within the scope. The scope’s positioning can be dialed in for consideration of different ecological factors like wind speed and elevation increases or decreases to account for bullet drop.
The scope’s function is to help shooters understand precisely where the bullet will hit based on the sight picture you are viewing with the scope as you align the scope’s crosshair or reticle with the target. Many contemporary rifle optics have about eleven parts which are located within and outside of the scope body. These optic pieces consist of the rifle scope’s body, lenses, adjustment turrets, objective focus rings, and other elements. Learn about the eleven parts of rifle scopes.
About Rifle Scope Styles
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The type of focal plane a scope has establishes where the reticle or crosshair is located in relation to the scopes magnification. It simply means the reticle is situated behind or before the magnification lens of the scope. Picking the most suitable style of rifle optic is based upon what sort of hunting or shooting you anticipate doing.
First Focal Plane Scope Facts
First focal plane glass (FFP) come with the reticle in front of the magnification lens. This triggers the reticle to increase in size based upon the extent of zoom being used. The benefit is that the reticle measurements are the same at the enhanced distance as they are at the non amplified distance. One tick on a mil-dot reticle at 100 yards with no “zoom” is still the identical tick at 100 yards with 5x “zoom”. These types of scopes are useful for:
- Quick acquisition, long distance types of shooting
- Shooting situations where calculations are low
- Experienced shooters who recognize their target “hold over” and also “lead” ratios for their rifles
- Shooters who don’t mind the reticle is enlarged and uses up more visual eyesight room than a SFP reticle
Second Focal Plane Optic Details
Second focal plane scopes (SFP) include the reticle to the rear of the zoom lens. This induces the reticle to remain at the same scale in connection with the level of magnification being used. The effect is that the reticle measurements adjust based upon the zoom used to shoot over greater distances given that the reticle markings present various increments which can vary with the zoom level. In the FFP illustration with the SFP glass, the 5x “zoom” one hundred yard tick reticle measurement would be 1/5th of the non “zoom” tick. These types of glass work for:
- Far away types of shooting where shooters have additional time to make ballistic estimations
- Shooting where most shots take place within much shorter proximities and ranges
- Shooters who prefer a clearer optic picture with less area used up by the bigger FFP reticle
About Rifle Scope Zoom
The amount of scope zoom you need on your glass depends upon the kind of shooting you wish to do. Practically every style of rifle scope provides some level of magnification. The volume of zoom a scope gives is identified by the diameter, thickness, and curves of the lenses within the rifle scope. The magnifying level of the scope is the “power” of the opic. This denotes what the shooter is observing through the scope is magnified times the power element of what can typically be seen by human eyes.
Fixed Power Lens Scopes
A single power rifle optic and scope uses a magnification number designator like 4×32. This suggests the magnification power of the scope is 4x power and the objective lens is 32mm. The zoom of this kind of scope can not adjust because it is set from the factory.
Info About Variable Power Lens Rifle Glass
Variable power rifle scopes use enhanced power. The power adjustment is accomplished by using the power ring part of the scope near the back of the scope by the eye bell.
The Power and Range of Glass
Here are some suggested scope power settings and the distances where they could be successfully used. Keep in mind that high magnification glass will not be as efficient as lower magnification level optics due to the fact that excessive zoom can be a detractor. The same concept relates to longer ranges where the shooter needs enough power to see precisely where to properly aim the rifle at the target.
Lens Finishing for Rifle Scopes
All modern-day rifle optic lenses are layered. Lens covering is an essential aspect of a rifle system when purchasing high end rifle optics and scope systems.
ED Versus HD Scopes
Some optic companies will also use “HD” or high-def glass finishes that take advantage of different processes, chemicals, polarizations, and components to draw out different colors and viewable target definition through lenses. This HD covering is commonly used with more costly high density lens glass which brings down light’s capability to refract through the lens glass. Some scope producers use “HD” to describe “ED” suggesting extra-low dispersion glass. ED handles how certain colors are represented on the chroma spectrum and the chromatic aberration or deviance which is also called color distortion or fringing. Chromatic aberration can be visible around items with well defined shapes as light hits the item from particular angles.
Single Rifle Glass Lens Coating Versus Multi-Coating
Various optic lenses can also have different coatings applied to them. All lenses normally have at least some type of treatment or covering applied to them before being used in a rifle scope or optic.
This lens treatment can safeguard the lens from scratches while minimizing glare and other less advantageous things experienced in the shooting environment while sighting in with the scope. The quality of a single layered lens depends on the scope maker and how much you paid for it.
Some scope makers likewise make it a point to define if their optic lenses are covered or “multi” coated. This indicates the lens has several treatments applied to the surfaces. If a lens receives several treatments, it can establish that a company is taking numerous steps to fight various natural aspects like an anti-glare covering, a scratch resistant anti-abrasion coating, followed by a hydrophilic finish. This also doesn’t always indicate the multi-coated lens will perform much better than a single coated lens. Being “much better” depends on the producer’s lens treatment solutions and the quality of products used in building the rifle glass.
Glass Lens Hydrophobic Covering
Water on a scope’s lens doesn’t improve maintaining a clear sight picture through an optic at all. Lots of top of the line or premium scope manufacturers will coat their lenses with a hydrophobic or hydrophilic covering. The Steiner Optics Nano-Protection is a good example of this type of treatment. It deals with the exterior surfaces of the Steiner glass lens so the H2O particles can not bind to it or create surface tension. The outcome is that the water beads roll off of the scope to maintain a clear, water free sight picture.
Scope Installing Options
Installing solutions for scopes can be found in a couple of choices. There are the standard scope rings which are individually mounted to the scope and one-piece scope mounts which cradle the scope. These various kinds of mounts also generally are made in quick release variations which use toss levers which allow rifle shooters to quickly mount and dismount the optics.
Hex Key Rifle Glass Rings
Basic, clamp-on type mounting optic rings use hex head screws to fix to the flattop design Picatinny scope mounting rails on the tops of rifles. These kinds of scope mounts use two detached rings to support the scope, and are made from 7075 T6 billet aluminum which are created for long distance accuracy shooting. This type of scope mount is exceptional for rifle systems which need to have a long lasting, hard use mount which will not move despite just how much the scope is moved or abuse the rifle takes. These are the style of mounts you should have for a devoted scope setup on a long distance hunting or competition firearm that will almost never need to be modified or recalibrated. Blue 242 Loctite threadlocker can also be used on the scope mount’s screws to stop the hex screws from wiggling out after they are mounted safely in position. An example of these rings are the 30mm style made by the Vortex Optics brand. The set typically costs around $200 USD
Quick-Release Cantilever Glass Ring Mounting Solutions
These kinds of quick-release rifle scope mounts can be used to quickly take off a scope from a rifle and reattach it to a different rifle. Multiple scopes can also be switched out if they all use a complementary designed mount. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers attach firmly to a flat top type Picatinny rail. This allows the scope to be sighted in while on the rifle, removed from the rifle, and remounted while keeping accuracy. These types of mounts come in handy for rifles which are transferred a lot, to take off the scope glass from the rifle for protection, or for optics which are employed between multiple rifles. An example of this mount style is the 30mm mount designed by the Vortex Optics brand. It usually costs around $250 USD
Scope Tube Sealing and Gas Purging
Wetness inside your rifle optic can ruin a day on the range and your pricey optic by triggering fogging and creating residue inside of the scope’s tube. A lot of scopes prevent humidity from going into the optical tube with a series of sealing O-rings which are water resistant. Generally, these scopes can be submerged under 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be ample moisture avoidance for conventional use rifles for hunting and sporting purposes, unless you anticipate taking your rifle on boats and are worried about the scope still performing if it goes over the side and you can still salvage the gun.
Rifle Optic Gas Purging
Another element of preventing the accumulation of wetness within the rifle optic’s tube is filling the tube with a gas like nitrogen. Considering that this area is already occupied by the gas, the optic is less altered by temperature level alterations and pressure differences from the external environment which could 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 good rifle scope to seek out.
