Description
Rifle Scope Product Details
BSA 3-12X40 Sweet 17 Rifle Scope with Multi-Grain Turret
Turret calibrated for .17HMR 17gr. and .20gr Bullets
Rifle Scope Product Features
About this item
1/4 minute click adjustments
4″ eye relief
Turret calibrated for .17HMR 17gr. and .20gr Bullets.
Fully multi-coated optics
3-12 variable power
BSA Optics Sweet 17 SP 3-12 X 40mm Side Parallax Rifle Scope .17 HMR
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
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
Specification
Magnification low: 3; Magnification high: 12; Objective lens diameter: 40 mm
30/30 Duplex Reticle
1 piece aluminum construction, 1 inch tube
Glass lens material, fully multi-coated
Multi-Grain Turret and Side Parallax
Shockproof, Fogproof, Waterproof
19.90 oz weight; 12.6 in length.
S17-312X40SP Sweet 17 3-12 x 40 Side Focus / Parallax
Adjustable parallax to perfectly calibrate your shots down range. Specifically calibrated for the .17 HMR 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 firearm scopes, optics, mounting solutions, and other components used for guns like rifles and long guns. They innovate and manufacture their scopes and related products making the most of materials which are long lasting and resilient. This includes the BSA 3-12X40 Sweet 17 Rifle Scope with Multi-Grain Turret by BSA Optics. For more shooting products, visit their site.
Information About Optics
Rifle scopes permit you to specifically align a rifle at different targets by aligning your eye with the target at range. They do this through magnifying the target by utilizing a set of lenses within the scope. The scope’s positioning can be adapted for consideration of many natural things like wind speed and elevation increases or decreases to make up for bullet drop.
The scope’s purpose is to help shooters 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 contemporary rifle scopes have around eleven parts which are arranged within and externally on the optic. These optic pieces consist of the rifle scope’s body, lenses, modification turrets, objective focus rings, and other components. Learn about the eleven parts of glass.
Rifle Scope Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Selecting the finest type of rifle optic is based around what type of shooting you plan to do.
Info on First Focal Plane Scopes
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These styles of scopes are beneficial for:
- Quick acquisition, far away types of shooting
- Shooting circumstances where computations are minimal
- Experienced shooters who recognize their aim point “hold over” plus “lead” equations for their rifles
- Shooters who do not mind the reticle is bigger and uses up more visual sight area than a SFP reticle
Second Focal Plane Scope Facts
Second focal plane optics (SFP) come with the reticle to the rear of the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick measurement would be 1/5th of the non “zoom” tick measurement.
- Far away types of shooting where shooters have increased time to make ballistic computations
- Shooting where most of the shots occur within much shorter proximities and ranges
- Shooters who select a clearer optic picture without space taken up by the bigger FFP reticle
Rifle Scope Zoom
The quantity of zoom a scope provides is figured out by the size, thickness, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Info on Single Power Lens Glass
A single power rifle optic uses a magnification number designator like 4×32. This means the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of optic can not fluctuate since it is a fixed power optic.
Adjustable Power Lens Glass
Variable power rifle scopes use variable power levels. The power adjustment is achieved by using the power ring part of the scope near the back of the scope by the eye bell.
Power and Range Correlations
Here are some advised scope power levels and the ranges where they may be successfully used. Highly magnified glass will not be as beneficial as lower powered rifle scope glass since too much magnification can be a bad thing. The exact same concept relates to longer distances where the shooter needs enough power to see precisely where to best aim the rifle at the target.
Info on Glass Lens Finishes
All modern-day rifle glass lenses are coated. Lens coating can be a significant element of a shooting platform when looking into high end rifle optics and scope systems.
About Glass Lens Coatings – HD Versus ED
Some scope makers also use “HD” or high-definition lens finishings which use different techniques, polarizations, chemicals, and components to draw out various colors and viewable definition through the lens. Some scope makers use “HD” to refer to “ED” implying extra-low dispersion glass.
Single Coating Versus Multi-Coating for Glass
Different optic lenses can also have various finishes used to them. All lenses usually have at least some type of treatment or finish used to them before being used in a rifle scope or optic.
Single coated lenses have a treatment applied to them which is typically a protective and boosting multi-purpose treatment. 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 optic. The quality of a single coated lens depends upon the scope manufacturer and how much money you paid for it. Both the make and cost are signs of the lens quality.
Some scope producers likewise make it a point to specify if their optic lenses are coated or “multi” covered. This implies the lens has numerous treatments applied to them. If a lens gets several treatments, it can indicate that a manufacturer is taking several actions to fight different natural factors like an anti-glare finish, a scratch resistant anti-abrasion coating, followed by a hydrophilic covering. This also does not always suggest the multi-coated lens will perform better than a single coated lens. Being “much better” depends on the maker’s lens treatment solutions and the quality of glass used in building the rifle scope.
What to Know About Hydrophobic Coating
Water on a lens does not help with preserving a clear sight picture through a scope at all. Many top of the line and high-end scope companies will coat their lenses with a hydrophobic or hydrophilic anti-water finish.
Choices for Mounting Rifle Glass on Long Guns
Installing approaches for scopes come in a few options. There are the standard scope rings which are individually installed to the scope and one-piece mounts which cradle the scope. These different kinds of mounts also normally are made in quick release variations which use toss levers which permit rifle shooters to quickly install and remove the scopes.
Hex Key Rifle Scope Ring Mounts
Basic, clamp type mounting optic rings use hex head screws to position to the flattop design Picatinny scope mount rails on the tops of rifles. These kinds of scope mounts use a pair of separate rings to support the optic, and are usually constructed from 7075 T6 billet aluminum which are designed for far away precision shooting. This type of scope mount is effective for rifles which require a durable, unfailing mount which will not shift regardless of how much the scope is moved about or abuse the rifle takes. These are the design of mounts you really want to have for a faithful optics system on a long distance hunting or competition long gun which will hardly ever need to be changed or adjusted. Blue 242 Loctite threadlocker can additionally be used on the mount’s screws to keep the hex screws from backing out after they are installed tightly in position. An example of these rings are the 30mm style from the Vortex Optics company. The set normally costs around $200 USD
Rifle Scope Mounting Solutions with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to rapidly remove a scope and connect it to a different rifle. Numerous scopes can even be switched out if they all use a similar style mount. These types of mounts come in handy for rifles which are carried a lot, to remove the optic from the rifle for protection, or for optics which are used between numerous rifles.
Info Around Glass Tube Sealing and Gas Purging
Moisture inside your rifle optic can spoil a day on the range and your pricey optic by causing fogging and producing residue inside of the scope tube. Most scopes protect against wetness from going into the scope tube with a series of sealing O-rings which are waterproof. Typically, these water resistant optics can be immersed within 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be ample humidity avoidance for common use rifles for hunting and sporting purposes, unless you intend on taking your rifle aboard a watercraft and are concerned about the scope still performing if it falls overboard and you can still recover the gun.
Gas Purged Scope Tubes
Another component of avoiding the buildup of moisture within the rifle scope tube is filling the tube with a gas like nitrogen. Considering that this space is currently taken up by the gas, the glass is less impacted by temperature level shifts and pressure differences from the outside environment which might potentially allow water vapor to permeate in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a good rifle scope to look for.
