Description
Rifle Scope Product Details
3-12x40mm Rifle Scope
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Rifle Scope Product Features
About this item
1/4 minute click adjustments
Red, Green and Blue Illuminated reticle
Turret calibrated for .17HMR 17gr. and .20gr Bullets.
4″ eye relief
3-12 variable power
BSA Optics Sweet 17 SP 3-12 X 40mm RGB (Red, Green, Blue Illuminated Reticle) Side Parallax Rifle Scope .17 HMR
Illuminated Red / Green / Blue Reticle. Specifically designed for the .17 HMR, with adjustable parallax / focus
The BSA Sweet .17 SP Rifle Scope is specifically designed for the .17HMR. This series features side parallax adjustment from 10 yds to infinity, fully multicoated lenses, 3″ sunshade and fast focus. The Sweet 17 SP features an elevation multi-grain turret ballistically calibrated for a 17gr and 20gr cartridges. Matte black finish. Waterproof, Shockproof and Fogproof. This model has a 30/30 Duplex Reticle that is illuminated Red, Green, or Blue.
For varmint and target shooters
Magnification low: 3; 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: 4 inches
FOV LOW @ 100′ (ft): 33; FOV HIGH @ 100′ (ft): 8.3
PARALLAX SETTING (yds): 10 to Inf.
Reticle: 30/30
Shockproof, Fogproof, Waterproof
Tube diameter: 1″, one piece; Aluminum Construction. CR2032 battery included.
Specifications
Magnification low: 3; Magnification high: 12; Objective lens diameter: 40 mm
30/30 Duplex Illuminated Red, Green, Blue Reticle
1 piece aluminum construction, 1 inch tube
Glass lens material, fully multi-coated
Multi-Grain Turret and Side Parallax
Shockproof, Fogproof, Waterproof
CR2032 battery included
20.60 oz weight; 13.00 in length
S17-312X40RGBGE Sweet 17 3-12 x 40 Side Focus / Parallax and Illuminated Reticle (Red, Green, Blue)
Red, Green, Blue Illuminated Reticle. Specifically calibrated for the .17 HMR (17 and 20 gr) Bullet so you’re guaranteed optimal performance for your ammunition
BSA Optics Sweet 17 AO 3-12 X 40mm Rifle Scope .17 HMR BSA Optics Sweet 17 AO 3-9 X 40mm Rifle Scope .17 HMR BSA Optics Sweet 17 SP 6-18 X 40 Rifle Scope .17 HMR BSA Optics Sweet 17 SP 3-12 X 40 RGB .17 HMR (red, green, blue illuminated) BSA Optics Sweet 17 SP 3-12 X 40 Rifle Scope .17 HMR
Magnification 3-12 3-9 6-18 3-12 3-12
Objctive Diameter 40 mm 40 mm 40 mm 40 mm 40 mm
Side Parallax N/A N/A
Lenses Fully Coated Glass Fully Coated Glass Fully Multi-Coated Glass Fully Multi-Coated Glass Fully Multi-Coated Glass
One Piece Aluminum Construction
Shockproof, Fogproof, Waterproof
2 piece Dovetail mounts included N/A N/A N/A
30/30 Duplex Reticle
Length 12.90 in 12.12 in 13.2 in 13.00 in 12.6 in
Weight 22.70 oz 22.30 oz 19.90 oz 20.60 oz 19.9 oz
About the BSA Optics Brand
BSA Optics is a premium supplier for long gun scopes, optics, mounting solutions, and other components used for firearms like rifles and long guns. They design and build their scopes and related products by applying elements which are durable and long lasting. This includes the 3-12x40mm Rifle Scope by BSA Optics. For additional shooting items, visit their website.
What You Need to Know About Optics
Rifle scopes permit you to exactly aim a rifle at different targets by aligning your eye with the target at range. They do this through magnification by utilizing a series of lenses inside the scope. The scope’s alignment can be adjusted for consideration of separate environmental considerations like wind speed and elevation increases to make up for bullet drop.
The scope’s function is to 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. Many contemporary rifle optics have around eleven parts which are found internally and outside of the scope body. These scope parts consist of the rifle scope’s body, lenses, modification dials or turrets, focus rings, and other components. See all eleven parts of optics.
About Rifle Scope Types
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The form of focal plane a scope has determines where the reticle or crosshair lies in connection with the optic’s magnification. It simply implies the reticle is behind or in front of the magnifying lens of the scope. Choosing the best type of rifle glass is dependent on what type of hunting or shooting you plan on doing.
About First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These types of scopes are helpful for:
- Quick acquisition, far away kinds of shooting
- Shooting circumstances where calculations are minor
- Experienced shooters who know their aim point “hold over” and “lead” relationships for their long guns
- Shooters who do not mind the reticle is bigger and takes up more visual eyesight area than a SFP reticle
Info on Second Focal Plane Glass
Second focal plane scopes (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 measurement.
- Far away types of shooting where shooters have increased time to make ballistic calculations
- Shooting where most of the shots occur within shorter ranges and proximities
- Shooters who choose a clearer optic picture with less area used up by the larger sized FFP reticle
Details on Rifle Scope Magnification
The quantity of scope zoom you require is based on the style of shooting you like to do. Just about every type of rifle glass offers some level of magnification. The quantity of magnification a scope offers is established by the diameter, density, and curves of the lenses inside of the rifle optic. The zoom of the scope is the “power” of the scope. This signifies what the shooter is looking at through the scope is magnified times the power element of what can typically be seen by human eyes.
Info About Fixed Single Power Lens Rifle Glass
A single power rifle scope comes with 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 scope can not adjust considering that it is a set power scope.
Adjustable Power Lens Optics
Variable power rifle scopes have adjustable power. It will note the magnification degree in a configuration such as 2-10×32. These numbers imply the magnification of the scope can be changed in between 2x and 10x power. This always involves the powers in-between 2 and 10. The power shift is accomplished by operating the power ring component of the scope near the rear of the scope by the eye bell.
The Power and Range Correlation of Rifle Scopes
Here are some recommended scope power settings and the distances where they may be successfully used. High power optics will not be as beneficial as lower magnification glass given that too much magnification can be a negative aspect depending on your shooting distance. The very same idea relates to longer ranges where the shooter needs increased power to see precisely where to properly aim the rifle at the target.
Lens Finish for Rifle Scopes
All top teir rifle glass lenses are covered. Lens coating is a crucial element of a rifle’s setup when purchasing high end rifle optics and scope setups.
About Lens Coatings – HD Versus ED
Some glass companies even use “HD” or high-def glass coatings that employ various processes, chemicals, polarizations, and elements to draw out separate color ranges and viewable target definition through lenses. This HD finish is often used with higher density glass which drops light’s ability to refract through the lens glass. Some scope suppliers use “HD” to refer to “ED” meaning extra-low dispersion glass. ED deals with how colors are presented on the chromatic spectrum and the chromatic deviance or aberration which is similarly called color distortion or fringing. Chromatic aberration may be noticeable around things with hard edges and outlines as light hits the object from various angles.
Single Coating Versus Multi-Coating for Rifle Optics
Various scope lenses can also have various finishings applied to them. All lenses normally have at least some kind of treatment or covering applied to them before being used in a rifle scope or optic. Since the lens isn’t simply a raw piece of glass, they require performance enhancing coatings. It becomes part of the carefully tuned optic. It must have a covering applied to it so that it will be efficiently functional in numerous kinds of environments, degrees of sunshine (full VS shade), and other shooting conditions.
This lens treatment can protect 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 coated lens depends on the scope manufacturer and how much you paid for it.
Some scope producers similarly make it a point to define if their optic lenses are layered or “multi” covered. Being “better” depends on the maker’s lens treatment innovation and the quality of materials used in constructing the rifle scope.
Anti-water Lens Finishing
Water on a scope lens does not assist with keeping a clear sight picture through an optic in any way. Many top of the line or premium optic producers will coat their lenses with a hydrophobic or hydrophilic finishing. The Steiner Optics Nano-Protection is a good example of this type of treatment. It deals with the exterior surfaces of the Steiner optic lens so the H2O molecules can not bind to it or create surface tension. The outcome is that the water beads sheet off of the scope to preserve a clear, water free sight picture.
Rifle Glass Installing Choices
Installing options for scopes are available in a couple of options. There are the basic scope rings which are individually installed to the scope and one-piece mounts which cradle the scope. These different types of mounts also usually are made in quick release versions which use toss levers which permit rifle operators to quickly mount and dismount the glass.
Hex Key Rifle Scope Ring Mounting Solutions
Standard, clamp-on style mounting scope rings use hex head screws to install to the flattop design Picatinny scope mount 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 created for far away precision shooting. This kind of scope mount is effective for rifles which need a durable, rock solid mount which will not change despite how much the scope is moved about or abuse the rifle takes. These are the type of mounts you really want to have for a devoted scope setup on a reach out and touch someone hunting or sniper competition long gun which will almost never need to be modified or recalibrated. Blue 242 Loctite threadlocker can additionally be used on screws to keep the hex screws from wiggling out after they are mounted securely in place. An example of these rings are the 30mm style made by the Vortex Optics brand. The set typically costs around $200 USD
Scope Mounting Solutions with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to rapidly attach and remove a scope from a rifle. If they all use a comparable design mount, multiple scopes can also be switched out on the range. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers attach firmly to a flat top style Picatinny rail. This permits the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while keeping accuracy. These kinds of mounts come in practical for shooting platforms which are moved around a lot, to remove the scope glass from the rifle for protection, or for aiming systems which are employed between numerous rifles. An example of this mount style is the 30mm mount from the Vortex Optics brand. It generally costs around $250 USD
Sealing and Gas Purging for Optic Tubes
Wetness inside your rifle optic can ruin a day of shooting and your expensive optic by triggering fogging and generating residue within the scope tube. The majority of optics prevent wetness from going into the scope tube with a system of sealing O-rings which are water resistant. Normally, these water resistant optics can be immersed underneath 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be sufficient humidity avoidance for common use rifles for hunting and sporting purposes, unless you intend on taking your rifle on a boat and are worried about the optic still performing if it goes overboard and you can still retrieve the rifle.
Gas Purged Rifle Scope Tubes
Another part of avoiding the accumulation of wetness inside of the rifle scope tube is filling the tube with a gas like nitrogen. Considering that this area is already occupied by the gas, the glass is less altered by temperature level shifts and pressure variations from the outside environment which could potentially permit water vapor to permeate in around the seals to fill the void which would otherwise be there. These are good qualities of a good rifle scope to look for.
