Description
Rifle Scope Product Details
Gamo BSA Optics Sweet 17 AO 3-12 x 40mm Rifle Scope .17 HMR
The BSA sweet 17 AO is calibrated for the .17HMR 17 gr. Bullet. The sweet 17 comes standard with 2pc dovetail rings and fully coated anti-reflective lenses.
Rifle Scope Product Features
Sweet .17 3X-12X
40mm Adjustable Objective
Rings included
Designed for the .17Hmr 17 gr. Bullet
W/E adjustment range 35 – Eye relief 3 in – FOV low @ 100′ (Ft) 40/ high 10 -Parallax setting (yds) – 7.5 to INF.
Fully coated glass lenses
1 year limited Warranty
BSA Optics Sweet 17 AO 3X-12X 40mm Rifle Scope .17 HMR
Specifically designed for the .17 HMR
The BSA sweet 17 AO (Adjustable Objctive) is calibrated for the .17HMR 17 gr. Bullet. This Sweet 17 AO series features a ballistically calibrated turret for the 17 gr cartidge. The sweet 17 comes standard with 2pc dovetail rings and fully coated anti-reflective glass lenses.
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: 3 inches
FOV LOW @ 100′ (ft): 40; FOV HIGH @ 100′ (ft): 10
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: 12; 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
2 piece Dovetail mounts included
22.7 oz weight; 12.90 in length.
17-312X40AOWRTB Sweet 17 3-12 x 40 Adjustable Objective
Whether your target shooting or hunting, this scope will prove to be reliable and help you attain better accuracy.
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 Gamo Company
Gamo is a premium maker for rifle scopes, optics, mounting solutions, and other components used for firearms like rifles and long guns. They innovate and build their products making the most of building materials which are long lasting and resilient. This includes the Gamo BSA Optics Sweet 17 AO 3-12 x 40mm Rifle Scope .17 HMR by Gamo. For more shooting items, visit their site.
Info Glass
Rifle scopes allow you to exactly aim a rifle at various targets by aligning your eye with the target over a distance. They accomplish this through magnifying the target using a series of lenses within the scope. The scope’s positioning can be dialed in to account for many environmental elements like wind and elevation increases to account for bullet drop.
The scope’s purpose is to understand exactly where the bullet will land based on the sight picture you are viewing through the scope as you align the scope’s crosshair or reticle with the target. A lot of modern-day rifle scopes and optics have around 11 parts which are arranged internally and on the exterior of the scope body. These optic pieces include the rifle scope’s body, lenses, windage and elevation turrets, focus rings, and other parts. Learn about the eleven parts of rifle scopes.
The Varieties of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The sort of focal plane an optic has identifies where the reticle or crosshair is located in regard to the scopes zoom. It literally means the reticle is located behind or ahead of the magnification lens of the scope. Considering the most suitable style of rifle optic depends upon what variety of shooting you plan on doing.
About First Focal Plane Optics
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. This induces the reticle to increase in size based upon the level of zoom being used. The result 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 same tick at 100 yards by using 5x “zoom”. These types of scopes work for:
- Quick acquisition, long distance kinds of shooting
- Shooting scenarios where computations are marginal
- Experienced shooters who know their target “hold over” and “lead” ratios for their rifles
- Shooters who do not mind the reticle is bigger and uses up more visual sight room than a SFP reticle
About Second Focal Plane Glass
Second focal plane scopes (SFP) include the reticle to the rear of the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick measurement.
- Long distance 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 prefer a clearer optic picture without area taken up by the larger sized FFP reticle
Details on Rifle Scope Zoom
The amount of magnification a scope provides is identified 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.
Fixed Power Lens Scope Details
A single power rifle scope will have a magnification number designator like 4×32. This means the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of optic can not fluctuate given that it is a set power scope.
Adjustable Power Lens Rifle Scopes
Variable power rifle scopes have adjustable power. It will list the magnification degree in a configuration like 2-10×32. These numbers suggest the magnification of the scope could be adjusted between 2x and 10x power. This additionally utilizes the powers in-between 2 and 10. The power shift is accomplished by employing the power ring part of the scope near the back of the scope by the eye bell.
Power and Range
Here are some suggested scope power settings and the distances where they can be effectively used. Bear in mind that higher power optics and scopes will not be as effective as lower powered glass because excessive zoom can be a bad thing. The same concept applies to longer distances where the shooter needs to have enough power to see where to best aim the rifle at the target.
Lens Coating for Optics
All current rifle scope lenses are covered. Lens covering is a significant aspect of a rifle when considering high end rifle optics and scope systems.
HD Versus ED Lenses
Some scope producers also use “HD” or high-definition lens finishings which use different techniques, components, polarizations, and chemicals to draw out various colors and viewable quality through the lens. Some scope producers use “HD” to refer to “ED” to signify the lens has extra-low dispersion glass.
Single Optic Lens Finish Versus Multi-Coating
Various scope lenses can also have different finishes applied to them. All lenses usually have at least some kind of treatment or covering applied to them prior to being used in a rifle scope or optic. This is because the lens isn’t simply a raw piece of glass. It is part of the finely tuned optic. It requires a coating to be applied to it so that it will be efficiently usable in lots of types 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 layered lens depends on the scope manufacturer and how much you paid for it.
Some scope makers also make it a point to define if their optic lenses are covered or “multi” covered. This indicates the lens has several treatments applied to the surfaces of the glass. If a lens receives several treatments, it can prove that a maker is taking numerous steps to fight different natural aspects like an anti-glare covering, a scratch resistant anti-abrasion finishing, followed by a hydrophilic finishing. This also doesn’t necessarily indicate the multi-coated lens is much better than a single layered lens. Being “better” is dependent on the maker’s lens treatment solutions and the quality of components used in creating the rifle optic.
Hydrophobic Rifle Scope Lens Covering
Water on a lens doesn’t assist with maintaining a clear sight picture through a scope at all. Many top of the line and high-end optic makers will coat their lenses with a hydrophobic or hydrophilic anti-water coating.
Scope Mounting Choices
Installing approaches for scopes can be found in a couple of choices. There are the basic scope rings which are separately installed to the scope and one-piece mounts which cradle the scope. These different kinds of mounts also usually come in quick release variations which use manual levers which enable rifle operators to rapidly install and remove the scopes.
Hex Key Scope Ring Mounts
Standard, clamp style mounting scope rings use hex head screws to mount to the flattop style Picatinny scope installation rails on rifles. These types of scope mounts use a couple of separate rings to support the optic, and are made from 7075 T6 billet aluminum which is designed for long range accuracy shooting. This type of scope mount is wonderful for rifles which require a long lasting, rock solid mount which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Optic Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to rapidly connect and take off a scope from a rifle. If they all use a comparable design mount, multiple scopes can often be swapped on the range. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers attach securely to a flat top type Picatinny rail. This enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while keeping precision. These kinds of mounts come in practical for rifles which are transferred between vehicles a lot, to remove the optic from the rifle for protection, or for sight systems which are utilized in between numerous rifles. An example of this mount style is the 30mm mount from Vortex Optics. It generally costs around $250 USD
Sealing and Gas Purging for Optic Tubes
Wetness inside your rifle optic can mess up a day of shooting and your costly optic by bringing about fogging and producing residue inside of the scope tube. Many scopes prevent wetness from getting in the scope tube with a system of sealing O-rings which are waterproof.
What to Know About Rifle Glass Tube Gas Purging
Another part 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 occupied by the gas, the optic is less influenced by temperature level changes and pressure distinctions from the external environment which could possibly enable water vapor to permeate in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to seek out.
