Description
Rifle Scope Product Details
Gamo BSA Optics Sweet 17 AO 3-9 X 40mm Rifle Scope .17 HMR
The BSA® Sweet .17 AO Rifle Scope is specifically designed for the .17 HMR. These scopes feature fully coated lenses, an adjustable objective, 30/30 reticle, 2-pc Dovetail rings and generous eye-relief. This Sweet 17 AO series features a ballistically calibrated turret for the 17 gr cartidge.
Matte black finish. Waterproof, shockproof and fogproof.
Rifle Scope Product Features
The BSA sweet 17 AO (Adjustable Objctive) is calibrated for the .17HMR 17 gr. Bullet
The sweet 17 comes standard with 2pc dovetail rings and fully coated anti-reflective glass lenses
Lens Material: Glass; Lens: Fully Multi-Coated
Adjustment MOA: 1/4
Shockproof, Fogproof, Waterproof
Adjustable Objective
1 piece aluminum construction, 1 inch tube
BSA Optics Sweet 17 AO 3X-9X 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: 9
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): 34.2; FOV HIGH @ 100′ (ft): 11.5
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: 9; 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
22.3 oz weight; 12.12 in length.
17-39X40AOWRTB Sweet 17 3-9 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 in
About the Gamo Company
Gamo is a premium producer for weapon scopes, optics, mounts, and other components used for firearms like rifles and long guns. They create and supply their scopes and related products by choosing building materials which are long lasting and durable. This includes the Gamo BSA Optics Sweet 17 AO 3-9 X 40mm Rifle Scope .17 HMR by Gamo. For additional shooting items, visit their site.
Rifle Glass Facts
Rifle scopes enable you to specifically aim a rifle at different targets by lining up your eye with the target over a distance. They accomplish this through magnification by using a set of lenses within the scope. The scope’s positioning can be adjusted for the consideration of different natural things like wind speed and elevation decreases to make up for bullet drop.
The scope’s purpose is to help shooters understand exactly where the bullet will land based upon the sight picture you are seeing using the scope as you line up the scope’s crosshair or reticle with the intended point of impact. A lot of modern rifle optics have around eleven parts which are located inside and outside of the scope body. These scope parts include the rifle scope’s body, lenses, elevation turrets, objective focus rings, and other elements. See all eleven parts of a scope.
About Rifle Optic Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The sort of focal plane an optic has decides where the reticle or crosshair lies in connection with the scopes zoom. It simply implies the reticle is situated behind or in front of the magnifying lens of the scope. Deciding on the best type of rifle scope depends on what type of shooting or hunting you anticipate doing.
First Focal Plane Glass Facts
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These kinds of scopes are useful for:
- Quick acquisition, long distance kinds of shooting
- Shooting situations where estimations are minimal
- Experienced shooters who understand their aim point “hold over” plus “lead” relationships for their weapon
- Shooters who don’t mind the reticle is enlarged and requires more visual eyesight area than a SFP reticle
About Second Focal Plane Scopes
Second focal plane optics (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 would be 1/5th of the non “zoom” tick measurement.
- Long distance forms of shooting where shooters have extra time to make ballistic calculations
- Shooting where most shots occur within shorter ranges and proximities
- Shooters who like a clearer optic picture with less room used up by the larger sized FFP reticle
Details on Scope Zoom
The amount of magnification a scope provides is figured out by the size, density, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
Fixed Power Lens Rifle Scopes
A single power rifle scope and optic will have a zoom number designator like 4×32. This implies the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of optic can not change because it is a fixed power optic.
Variable Power Lens Glass Facts
Variable power rifle scopes can be adjusted between magnification power levels. These types of scopes will list the magnification degree in a configuration like 2-10×32. These numbers mean the magnification of the scope can be adjusted between 2x and 10x power. This additionally incorporates the powers in-between 2 and 10. The power shift is achieved by applying the power ring part of the scope near the rear of the scope by the eye bell piece.
Power and Range Correlations
Here are some recommended scope power levels and the distances where they can be efficiently used. High power glass will not be as beneficial as lower magnification glass since too much zoom can be a negative aspect depending on your shooting distance. The exact same concept goes for longer ranges where the shooter needs sufficient power to see exactly where to properly aim the rifle.
Info on Lens Coverings
All modern rifle optic and scope lenses are layered. There are various types and qualities of glass coverings. Lens coating can be a crucial aspect of a rifle when looking at high-end rifle optics and scope equipment. The glass lenses are among the most key components of the glass considering they are what your eye looks through while sighting a rifle in on the point of impact. The finishing on the lenses shields the lens surface area and improves anti glare from refracted natural light and color exposure.
About Lens Coatings – HD Versus ED
Some scope makers likewise use “HD” or high-definition lens finishes which use various processes, chemicals, components, and polarizations to draw out a wide range of colors and viewable quality through the lens. Some scope manufacturers use “HD” to refer to “ED” implying extra-low dispersion glass.
Rifle Glass Lens Single Coating Versus Multi-Coating
Different optic lenses can likewise have various coatings applied to them. All lenses typically have at least some type of treatment or finish applied to them prior to being used in a rifle scope or optic.
This lens treatment can protect the lens from scratches while reducing glare and other less advantageous things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends on the scope manufacturer and how much you paid for it.
Some scope makers likewise make it a point to define if their optic lenses are layered or “multi” covered. This indicates the lens has had multiple treatments applied to them. If a lens receives multiple treatments, it can prove that a maker is taking multiple steps to combat various environmental factors like an anti-glare finish, a scratch resistant anti-abrasion finishing, followed by a hydrophilic coating. This additionally doesn’t necessarily suggest the multi-coated lens is much better than a single covered lens. Being “much better” is dependent on the producer’s lens treatment technology and the quality of materials used in creating the rifle glass.
Optic Lens Hydrophobic Finish
Water on a lens doesn’t assist with preserving a clear sight picture through a scope at all. Many top of the line and high-end scope makers will coat their lenses with a hydrophilic or hydrophobic covering which is water repellent.
Glass Mounting Options
Mounting options for scopes come in a few choices. There are the standard scope rings which are individually mounted to the scope and one-piece mounts which cradle the scope. These various kinds of mounts also normally are made in quick release variations which use throw levers which allow rifle operators to quickly install and dismount the glass.
Hex Key Glass Rings
Normal, clamp design mounting scope rings use hex head screws to mount to the flattop design Picatinny scope mount rails on rifles. These types of scope mounts use two separate rings to support the optic, and are often made from 7075 T6 billet aluminum which are developed for long range accuracy shooting. This type of scope mount is perfect for rifles which require a long lasting, sound mount which will not move no matter how much the scope is moved or abused.
Rifle Glass Mounts with Quick-Release Cantilever Rings
These kinds of quick-release rifle scope mounts can be used to rapidly attach and detach a scope from a rifle. A wide range of scopes can also be switched out if they all use a complementary style mount. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect solidly to a flat top style Picatinny rail. This enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while maintaining accuracy. These kinds of mounts are useful and practical for shooting platforms which are moved around a lot, to take off the optic from the rifle for protection, or for sight systems which are adopted between numerous rifles. An example of this mount style is the 30mm mount from Vortex Optics. It generally costs around $250 USD
Optic Tube Sealing and Gas Purging
Moisture inside your rifle glass can wreck a day on the range and your highly-priced optic by triggering fogging and creating residue inside of the scope tube. Many optics protect against humidity from getting in the scope tube with a system of sealing O-rings which are waterproof. Typically, these scopes can be submerged within 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be plenty of wetness avoidance for standard use rifles for hunting and sporting purposes, unless you plan on taking your rifle aboard a watercraft and are worried about the optic still working if it is submerged in water and you can still retrieve the gun.
Gas Purged Rifle Scope Tubes
Another component of avoiding the accumulation of wetness within the rifle optic tube is filling the tube with a gas like nitrogen. Considering that this area is already taken up by the gas, the glass is less altered by condition alterations and pressure variations from the outdoor environment which could possibly permit 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.
