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You are here: Home / Rifle Scopes / SIGHTRON 31017 SIH Series Riflescope 4-12x40mm, Hunter Holdover Reticle, Matte Black
SIGHTRON Rifle Scope 1 SIGHTRON 31017 SIH Series Riflescope 4-12x40mm, Hunter Holdover Reticle, Matte Black
SIGHTRON Rifle Scope 2 SIGHTRON 31017 SIH Series Riflescope 4-12x40mm, Hunter Holdover Reticle, Matte Black
SIGHTRON Rifle Scope 3 SIGHTRON 31017 SIH Series Riflescope 4-12x40mm, Hunter Holdover Reticle, Matte Black

SIGHTRON 31017 SIH Series Riflescope 4-12x40mm, Hunter Holdover Reticle, Matte Black

Was $275.20 - check current price

Check Out SIGHTRON 31017 SIH Series Riflescope 4-12x40mm, Hunter Holdover Reticle, Matte Black. See Great Rifle Scopes By SIGHTRON.

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SKU: 1d99a2a1f6a7 Category: Rifle Scopes Tag: rifle scope

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  • Description
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Description

SIGHTRON 31017 SIH...image
SIGHTRON 31017 SIH Series Riflescope 4-12x40mm, Hunter Holdover Reticle, Matte Black

Last update on September 25, 2023 // Source: Amazon API

Rifle Scope Product Details

SIGHTRON 31017 SIH Series Riflescope 4-12x40mm, Hunter Holdover Reticle, Matte Black
Sightron Si Hunter Series riflescope, SIH 4-12x40mm, HHR reticle, matte black features:- fast focus eyebell- all weather construction- SIH Series multi-coated LensesSpecifications:- magnification: 4-12x- object diameter: 42mm- field of view at 100 yards.

Rifle Scope Product Features

Black matte finish
All weather construction
Magnification 4-12x

About the SIGHTRON Brand

SIGHTRON is a premium producer for weapon scopes, optics, mounting solutions, and other accessories used for guns like rifles and long guns. They style and manufacture their scopes and related products working with elements which are long lasting and resilient. This includes the SIGHTRON 31017 SIH Series Riflescope 4-12x40mm, Hunter Holdover Reticle, Matte Black by SIGHTRON. For additional shooting products, visit their website.

About Rifle Optics

Rifle scopes enable you to exactly align a rifle at various targets by aligning your eye with the target at range. They do this through zoom by utilizing a series of lenses inside the scope. The scope’s positioning can be adjusted to take into account many natural aspects like wind and elevation increases to make up for bullet drop.

The scope’s purpose is to understand precisely where the bullet will hit based upon the sight picture you are viewing via the optic as you line up the scope’s crosshair or reticle with the intended point of impact. Most modern rifle scopes have around 11 parts which are found internally and outside of the scope body. These parts include the rifle scope’s body, lenses, windage and elevation turrets, objective focus rings, and other elements. Learn about the eleven parts of glass.

The Varieties of Rifle Scopes

Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Deciding upon the finest type of rifle optic is based around what type of shooting you plan on doing.

First Focal Plane Glass Info

Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These types of scopes are helpful for:

  • Quick acquisition, long distance types of shooting
  • Shooting circumstances where computations are minimal
  • Experienced shooters who have an idea for their aim point “hold over” as well as “lead” relationships for their firearm
  • Shooters who do not mind the reticle is bigger and occupies more visual sight area than a SFP reticle

Info About Second Focal Plane Glass

Second focal plane scopes (SFP) come with the reticle behind the zoom 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.

  • Long distance styles of shooting where shooters have more time to make ballistic computations
  • Shooting where most of the shots occur within shorter spaces and ranges
  • Shooters who like a clearer optic sight picture without area used up by the larger sized FFP reticle

About Optic Magnification

The quantity of zoom 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.

Single Power Lens Scope Details

A single power rifle optic or scope uses a magnification number designator like 4×32. This suggests the zoom power of the scope is 4x power and the objective lens is 32mm. The magnification of this type of scope can not adjust since it is set from the factory.

Adjustable Power Lens Rifle Scope Info

Variable power rifle scopes have adjustable power. It will list the magnification level in a configuration such as 2-10×32. These numbers suggest the zoom of the scope can be adjusted in between 2x and 10x power. This additionally incorporates the powers in-between 2 and 10. The power manipulation is achieved by applying the power ring part of the scope near the rear of the scope by the eye bell piece.

Power Levels and Range

Here are some advised scope power levels and the ranges where they can be effectively used. Remember that higher magnification optics will not be as practical as lower powered optics since excessive magnification can be a bad thing. The same concept relates to extended ranges where the shooter needs adequate power to see precisely where to properly aim the rifle.

Info on Scope Lens Covering

All contemporary rifle optic lenses are layered. There are different types and qualities of lens coverings. When thinking about luxury rifle scope systems, Lens coating can be a significant aspect of defining the rifle’s capability. The lenses are one of the most key parts of the optic since they are what your eye looks through while sighting a rifle in on the target. The finish on the lenses offers protection to the lens surface and helps with anti glare capabilities from excess sunrays and color discernibility.

About Lens Coatings – HD Versus ED

Some scope makers likewise use “HD” or high-definition lens coverings which use various techniques, elements, chemicals, and polarizations to draw out different colors and viewable quality through the lens. Some scope manufacturers use “HD” to refer to “ED” meaning extra-low dispersion glass.

Single Coating Versus Multi-Coating for Rifle Optics

Various optic lenses can likewise have various finishes applied to them. All lenses generally have at least some type of treatment or coating used to them before being used in a rifle scope or optic.

Single covered lenses have a treatment applied to them which is usually a protective and boosting multi-purpose treatment. This lens treatment can safeguard the lens from scratches while minimizing glare and other less advantageous things experienced in the shooting environment while sighting in with the optic. The quality of a single covered lens depends upon the scope designer and the amount you paid for it. Both the make and cost are indications of the lens quality.

Some scope manufacturers also make it a point to define if their optic lenses are covered or “multi” covered. This indicates the lens has numerous treatments applied to them. If a lens gets several treatments, it can prove that a producer is taking several steps to fight various environmental aspects like an anti-glare finish, a scratch resistant anti-abrasion finishing, followed by a hydrophilic finishing. This also doesn’t necessarily imply the multi-coated lens is much better than a single covered lens. Being “much better” depends on the manufacturer’s lens treatment techniques and the quality of products used in creating the rifle optic.

Hydrophobic Lens Finishes

Water on a scope’s lens does not help with retaining a clear sight picture through a scope in any way. Lots of top of the line or high-end scope producers will coat their lenses with a hydrophilic or hydrophobic finish. The Steiner Optics Nano-Protection is a fine example of this kind of treatment. It provides protection for the surface of the Steiner scope lens so the water particles can not bind to it or create surface tension. The result is that the water beads sheet off of the scope to keep a clear, water free sight picture.

Choices for Installing Rifle Glass on Firearms

Mounting options for scopes come in a couple of options. There are the basic scope rings which are separately mounted to the optic and one-piece scope mounts which cradle the scope. These different kinds of mounts also generally 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 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 two separate rings to support the optic, and are often made from 7075 T6 billet aluminum which is developed for long range accuracy shooting. This type of scope mount is wonderful for rifles which require a durable, rock solid mounting solution which will not move no matter how much the scope is moved or abused.

Quick-Release Cantilever Scope Ring Mounting Solutions

These types of quick-release rifle scope mounts can be used to quickly detach a scope from a rifle and reattach it to a different rifle. If they all use a comparable design mount, several scopes can also be switched on the range. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach nicely to a flat top design Picatinny rail. This permits the scope to be sighted in while on the rifle, removed from the rifle, and remounted while maintaining the original sighting settings. These types of mounts are useful and practical for rifles which are transferred between vehicles a lot, to take off the optic from the rifle for protection, or for sight systems which are utilized in between a number of rifles. An example of this mount type is the 30mm mount from the Vortex Optics brand. It typically costs around $250 USD

Info Around Scope Tube Sealing and Gas Purging

Wetness inside your rifle optic can ruin a day of shooting and your costly optic by causing fogging and producing residue inside of the scope tube. The majority of scopes avoid wetness from getting in the scope tube with a system of sealing O-rings which are waterproof.

Gas Purged Scope Tubes

Another component of preventing the buildup of wetness within the rifle optic’s tube is filling the tube with a gas like nitrogen. Since this space is currently taken up by the gas, the glass is less affected by condition shifts and pressure distinctions from the outdoor environment which may possibly permit water vapor to leak in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to look for.

Additional information

Category

Rifle Scopes

Brand

SIGHTRON

ASIN

B01BE7VPR4

Reviews

Over 2

Reviews Rating

2.5 out of 5 stars

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