Description
Rifle Scope Product Details
Sweet17 3-12×40 30/30DplxRet
Sweet 17 Rifle Scopes are designed for the serious hunter. The main features of the Sweet 17 are their ability to compensate for bullet trajectory by specific grain weight. The elevation drum will compensate for both .17/17HMR and .20gr. Features:- Calibrated for the .17 HMR.- Adjustable Parallax.- Turret calibrated for .17/17hmr and .20gr. – Limited Lifetime Warranty.Specifications:- Magnification: 3-12 – Obj. Lens Diameter (mm): 40 – Exit Pupil Range (mm): 13.2-3 – Field of View @100 Yds: 31.4-8.3 – Optimum Eye Relief (in): 4 – Parallax Setting: 10 to Inf. – Click Adjustment Value: 1/4 – Adjustment Range: 45-45 – Transmission(%): Day/Night – Weight (ounces): 17.10manufacturer no: S17-312x40bar code: 631618112344manufacturer : BSAshipping dimensions: weight: 2.1 dimensional weight: 5 (w) x3.125 (h) x17.75 (d)
Rifle Scope Product Features
Size 12
Left Hand
About the BigTProducts Manufacturer
BigTProducts is a premium manufacturer for weapon scopes, optics, mounting solutions, and other accessories used for firearms like rifles and long guns. They create and supply their scopes, mounts, and related products by choosing elements which are long lasting and resilient. This includes the Sweet17 3-12×40 30/30DplxRet by BigTProducts. For more shooting products, visit their website.
Scope Facts
Rifle scopes permit you to specifically align a rifle at various targets by aligning your eye with the target at range. They accomplish this through zoom by utilizing a series of lenses inside the scope. The scope’s alignment can be adapted to take into account many ecological factors like wind and elevation increases or decreases to make up for bullet drop.
The scope’s function is to understand exactly where the bullet will hit based upon the sight picture you are seeing via the scope as you align the scope’s crosshair or reticle with the intended target. Most contemporary rifle optics have around eleven parts which are located within and externally on the scope body. These parts include the rifle scope’s body, lenses, windage and elevation dials or turrets, objective focus rings, and other elements. See all eleven parts of a scope.
The Styles of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Picking the optimal type of rifle optic is based on what type of shooting you plan on doing.
First Focal Plane Scope Details
First focal plane glass (FFP) feature the reticle ahead of the magnifying lens. This causes the reticle to increase in size based upon the amount of magnification being used. The outcome is that the reticle measurements are the same at the amplified range as they are at the non magnified range. For instance, one tick on a mil-dot reticle at one hundred yards without having “zoom” is still the same tick at 100 yards using 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, long distance kinds of shooting
- Shooting scenarios where computations are minor
- Experienced shooters who recognize their target “hold over” as well as “lead” correlations for their long gun
- Shooters who don’t mind the reticle is enlarged and occupies more visual sight space than a SFP reticle
Info on Second Focal Plane Optics
Second focal plane optics (SFP) feature the reticle to the rear of the zoom lens. This induces the reticle to remain at the same dimensions relative to the level of magnification being used. The result is that the reticle measurements evolve based upon the zoom chosen to shoot over greater distances due to the fact that the markings present different increments which fluctuate with the magnification. 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 reticle measurement. These sorts of glass are convenient for:
- Far away kinds of shooting where shooters have increased time to make ballistic computations
- Shooting where most of the shots take place within shorter spaces and ranges
- Shooters who want a clearer optic picture without space taken up by the larger size FFP reticle
Zoom for Rifle Scopes
The extent of scope zoom you need on your scope depends on the kind of shooting you desire to do. Almost every kind of rifle scope supplies some degree of zoom. The level of magnification a scope supplies is established by the dimension, density, and curves of the lenses inside of the rifle scope. The magnification level of the scope is the “power” of the glass. This means what the shooter is aiming at through the scope is amplified times the power factor of what can usually be seen by human eyes.
Fixed Power Lens Rifle Scopes
A single power rifle optic and scope uses 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 magnification of this type of optic can not adjust given that it is set from the factory.
Adjustable Power Lens Rifle Optics
Variable power rifle scopes can be changed between magnification increments. These types of scopes will note the magnification degree in a format such as 2-10×32. These numbers suggest the magnification of the scope can be adjusted between 2x and 10x power. This also includes the powers in-between 2 and 10. The power adaptation is accomplished by employing the power ring component of the scope near the back of the scope by the eye bell.
The Power Level and Range Correlation of Rifle Scopes
Here are some advised scope powers and the ranges where they may be efficiently used. High power scopes will not be as beneficial as lower powered optics considering that too much zoom can be a bad thing. The exact same idea goes for extended ranges where the shooter needs sufficient power to see exactly where to best aim the rifle at the target.
Info on Lens Finishing
All modern rifle optic and scope lenses are layered. Lens finish is a vital aspect of a rifle system when considering high end rifle optics and scope setups.
HD Versus ED Lenses
Some scope producers additionally use “HD” or high-definition lens coatings that take advantage of various processes, polarizations, rare earth compounds, and aspects to enhance a wide range of colors and viewable definition through the lens. This HD coating is often used with increased density glass which brings down light’s opportunity to refract by means of the lens glass. Some scope manufacturers use “HD” to refer to “ED” implying extra-low dispersion glass. ED deals with how colors are presented on the chromatic spectrum and the chromatic difference or aberration which is also called color distortion or fringing. Chromatic aberration can be obvious around items with hard edges and outlines as light hits the object from certain angles.
What to Know About Single Finishing Versus Multi-Coating
Various scope lenses can even have various finishes 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 assembly. Due to the fact that the lens isn’t simply a raw piece of glass, they require performance enhancing coatings. It is part of the finely tuned optic. It requires a coating to be applied to it so that it will be efficiently functional in numerous types of environments, degrees of light (full light VS shade), and other shooting conditions.
Single covered lenses have a treatment applied to them which is normally a protective and improving multi-purpose treatment. This lens treatment can shield the lens from scratches while reducing glare and other less beneficial things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends upon the scope developer and just how much you spent for it. Both the make and cost are indicators of the lens quality.
Some scope producers likewise make it a point to specify if their optic lenses are coated or “multi” coated. This implies the lens has multiple treatments applied to the surfaces. If a lens receives numerous treatments, it can show that a company is taking numerous actions to combat different natural aspects like an anti-glare finishing, a scratch resistant anti-abrasion finish, followed by a hydrophilic covering. This additionally does not necessarily indicate the multi-coated lens is better than a single covered lens. Being “much better” is dependent on the manufacturer’s lens treatment solutions and the quality of materials used in creating the rifle optic.
What to Know About Hydrophobic Finishing
Water on a scope’s lens does not help with maintaining a clear sight picture through an optic in any way. Lots of top of the line or premium optic producers will coat their lenses with a hydrophobic or hydrophilic finish. The Steiner Optics Nano-Protection is a fine example of this kind of treatment. It provides protection for the exterior surfaces of the Steiner glass lens so the H2O particles can not bind to it or develop surface tension. The result is that the water beads slide off of the scope to keep a clear, water free sight picture.
Options for Installing Optics on Firearms
Installing approaches for scopes come in a couple of choices. There are the standard scope rings which are individually installed to the optic and one-piece scope mounts which cradle the scope. These different types of mounts also usually are made in quick release versions which use manual levers which permit rifle operators to rapidly install and dismount the glass.
Hex Key Glass Rings
Standard, clamp design 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 two different rings to support the optic, and are made from 7075 T6 billet aluminum which are created for long range accuracy shooting. This type of scope install is excellent for rifles which need a resilient, sound mount which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Scope Rings
These types of quick-release rifle scope mounts can be used to rapidly attach and take off a scope from a rifle before reattaching it to a different rifle. Several scopes can even be swapped out if they all use a compatible design mount. These types of mounts are convenient for long guns which are carried a lot, to swap out the optic from the rifle for protection, or for optics which are used between numerous rifles or are situationally focused.
Rifle Optic Tube Sealing and Gas Purging
Moisture inside your rifle optic can ruin a day of shooting and your pricey optic by bringing about fogging and creating residue inside of the scope tube. Most scopes prevent moisture from entering the scope tube with a system of sealing O-rings which are water resistant.
Details on Glass Tube Gas Purging
Another element of preventing the buildup of moisture within the rifle optic’s tube is filling the tube with a gas like nitrogen. Because this area is already taken up by the gas, the optic is less affected by temperature shifts and pressure distinctions from the external environment which could possibly permit water vapor to leak in around the seals to fill the void which would otherwise exist. These are good qualities of a good rifle scope to seek out.
