Description
Rifle Scope Product Details
BSA Special Series 3-9 x 40mm Rifle Scope with 30/30 Duplex Reticle and 100 yds Parallax
BSA Special series scopes fill the need of both rimfire and centerfire applications. Fully-coated optics, a generous eye relief and a variety of power configurations, makes this scope series a great choice for most hunting and shooting situations
Rifle Scope Product Features
Variable 3-9 Power
Fully Multi-Coated optics
1/4 MOA windage and elevation adjustments
Limited Lifetime Warranty
About the BSA Optics Scope Maker
BSA Optics is a premium company for long gun scopes, optics, mounting solutions, and other accessories used for guns like rifles and long guns. They style and supply their scopes, mounts, and related products using building materials which are durable and long lasting. This includes the BSA Special Series 3-9 x 40mm Rifle Scope with 30/30 Duplex Reticle and 100 yds Parallax by BSA Optics. For additional shooting items, visit their website.
Rifle Scope Info
Rifle scopes allow you to precisely aim a rifle at various targets by lining up your eye with the target over a range. They accomplish this through magnifying the target by utilizing a set of lenses inside the scope. The scope’s alignment can be adjusted for consideration of many natural considerations like wind and elevation increases to account for bullet drop.
The scope’s function is to help shooters understand precisely where the bullet will hit based upon the sight picture you are viewing via the optic as you align the scope’s crosshair or reticle with the intended point of impact. A lot of modern-day rifle scopes and optics have about eleven parts which are located within and outside of the optic. These optic pieces consist of the rifle scope’s body, lenses, elevation dials, focus rings, and other components. Learn about the eleven parts of glass.
The Styles of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The sort of focal plane a scope has establishes where the reticle or crosshair is located relative to the scopes magnifying adjustments. It literally indicates the reticle is behind or in front of the magnifying lens of the optic. Picking the most reliable sort of rifle optic depends upon what style of shooting you plan on doing.
Info on First Focal Plane Optics
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These styles of scopes are useful for:
- Quick acquisition, long distance types of shooting
- Shooting scenarios where estimations are small
- Experienced shooters who know their aim point “hold over” and also “lead” relationships for their weapon
- Shooters who do not mind the reticle is enlarged and uses up more visual eyesight area than a SFP reticle
Info About Second Focal Plane Scopes
Second focal plane glass (SFP) come with the reticle to the rear of the magnification lens. This causes the reticle to remain at the same dimensions in connection with the quantity of zoom being used. The result is that the reticle dimensions adjust based upon the magnification applied to shoot over longer ranges because the markings present various increments which can vary with the zoom level. In the FFP illustration with the SFP optic, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick. These particular varieties of glass are useful for:
- Long distance kinds of shooting where shooters have extra time to make ballistic computations
- Shooting where most of the shots take place within shorter proximities and ranges
- Shooters who select a clearer optic sight picture with less room used up by the larger sized FFP reticle
Details on Optic Zoom
The amount of zoom a scope supplies is determined by the size, thickness, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
Info on Fixed Single Power Lens Scopes
A single power rifle optic or scope will have a magnification number designator like 4×32. This implies the zoom power of the scope is 4x power while the objective lens is 32mm. The zoom of this kind of scope can not fluctuate since it is fixed.
Adjustable Power Lens Glass
Variable power rifle scopes have adjustable power. These types of scopes will note the zoom level in a format like 2-10×32. These numbers suggest the magnification of the scope could be changed between 2x and 10x power. This always incorporates the powers in-between 2 and 10. The power manipulation is achieved by making use of the power ring part of the scope near the back of the scope by the eye bell.
Rifle Scope Power Level and Ranges
Here are some advised scope power settings and the distances where they can be efficiently used. Keep in mind that higher power scopes and optics will not be as practical as lower magnification level optics due to the fact that excessive zoom can be a negative thing in certain situations. The exact same concept applies to extended ranges where the shooter needs sufficient power to see precisely where to best aim the rifle.
Glass Lens Finishing
All modern rifle scope lenses are coated. There are various types and qualities of glass finishings. When considering high end rifle scope setups, Lens covering can be an essential aspect of a rifle. The lenses are among the most significant components of the optic due to the fact that they are what your eye looks through while sighting a rifle in on the point of impact. The finish on the lenses shields the lens exterior and also assists with anti glare capabilities from excess direct sunlight and color perception.
Details on Lens Coatings – HD Versus ED
Some scope producers likewise use “HD” or high-definition lens coatings which use various techniques, polarizations, chemicals, and elements to draw out a wide range of colors and viewable quality through the lens. Some scope manufacturers use “HD” to refer to “ED” meaning extra-low dispersion glass.
Single Covering Versus Multi-Coating for Optics
Different optic lenses can also have different finishings used to them. All lenses usually have at least some type of treatment or finishing used to them before they are used in a rifle scope or optic.
Single coated lenses have a treatment applied to them which is generally a protective and boosting multi-purpose treatment. This lens treatment can shield the lens from scratches while lowering glare and other less helpful things experienced in the shooting environment while sighting in with the optic. The quality of a single layered lens depends on the scope designer and the amount you paid for it. Both are signs of the lens quality.
Some scope makers also make it a point to specify if their optic lenses are coated or “multi” covered. This suggests the lens has had multiple treatments applied to them. If a lens receives numerous treatments, it can indicate that a manufacturer is taking numerous steps to fight different natural factors like an anti-glare covering, a scratch resistant anti-abrasion coating, followed by a hydrophilic coating. This additionally doesn’t always mean the multi-coated lens is much better than a single covered lens. Being “much better” depends on the producer’s lens treatment innovation and the quality of products used in building the rifle scope.
Info on Hydrophobic Finishing
Water on an optic’s lens doesn’t improve keeping a clear sight picture through a scope whatsoever. Numerous top of the line and high-end optic manufacturers will coat their lenses with a hydrophobic or hydrophilic coating. The Steiner Optics Nano-Protection is a good example of this sort of treatment. It provides protection for the exterior of the Steiner optic lens so the water particles can not bind to it or create surface tension. The outcome is that the water beads slide off of the scope to maintain a clear, water free sight picture.
Rifle Optic Installing Options
Mounting solutions for scopes can be found in a couple of choices. There are the basic scope rings which are separately mounted to the optic and one-piece mounts which cradle the scope. These various kinds of mounts also typically are made in quick release versions which use manual levers which enable rifle shooters to quickly install and dismount the optics.
Rifle Optic Mounting Solutions with Hex Key Rings
Standard, clamp-on type mounting scope rings use hex head screws to install to the flattop design Picatinny scope mount rails on the tops of rifles. These styles of scope mounts use double detached rings to support the optic, and are usually constructed from 7075 T6 billet aluminum or similar materials which are made for long distance accuracy shooting. This form of scope mount is very good for rifle systems which require a durable, rock solid 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 specialized scope system on a long distance scouting or tournament firearm which will rarely need to be modified or recalibrated. Blue 242 Loctite threadlocker can also be used on the mount screws to keep the hex screws from wiggling out after they are installed securely in place. An example of these rings are the 30mm style from the Vortex Optics company. The set usually costs around $200 USD
Quick-Release Cantilever Rifle Glass Rings
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. If they all use a similar design mount, a number of scopes can also be switched on the range. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers fasten nicely to a flat top design 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 preserving the original sighting settings. These kinds of mounts come in handy for rifles which are moved around a lot, to remove the optic from the rifle for protection, or for sight systems which are adopted between several rifles. An example of this mount style is the 30mm mount from Vortex Optics. It typically costs around $250 USD
About Glass Tube Sealing and Gas Purging
Moisture inside your rifle optic can ruin a day on the range and your costly optic by triggering fogging and developing residue inside of the scope’s tube. A lot of optics protect against wetness from going into the scope tube with a series of sealing O-rings which are waterproof. Typically, these scopes can be immersed within 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be sufficient moisture avoidance for standard use rifles, unless you plan on taking your rifle boating and are concerned about the scope still working if it falls overboard and you can still salvage the gun.
What to Know About Rifle Scope Tube Gas Purging
Another part of avoiding the accumulation of moisture within the rifle scope tube is filling the tube with a gas like nitrogen. Since this space is currently taken up by the gas, the optic is less influenced by temperature level alterations and pressure differences 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.
