Last update on February 8, 2023 // Source: Amazon API
Rifle Scope Product Details
Sightmark 3-12×32 SHR-223 Riflescope
The nitrogen-filled, IP67 waterproof, shock proof, fog proof Sightmark 3-12×32 SHR-223 Riflescope gets you on target with precision optical quality packed in an elite, compact body. Built specifically for.223-cal. modern sporting rifles with a rugged 6061-T6 30mm tube and scaled perfectly for lightweight, fast-action professional and competition shooting, the Riflescope boasts an SHR-223 finely etched reticle, complete with red-illumination and calibrated sub tension lines for.223-cal. bullet drop compensation. 10 Reticle illumination brightness settings provide the intensity for daylight to no-light shooting. The generous 4.2″ eye relief provides shooters with a robust field of view while an advanced, fully-multicoated, scratch resistant lens system, 3-12x magnification and an easy-to-focus rapid power rotation eyepiece work together to give razor sharp, lightning quick target acquisition. Whether your rifle is all business, all competition or all fun, exposed pop-up locking turrets deliver precise 1/4″ per click windage and elevation adjustments for superb tracking. The Sightmark 3-12×32 SHR-223 Riflescope is the perfect mid- to long-range second-focal-plane optic to make your mark.
Rifle Scope Product Features
Precision, compact .223-Calibrated Riflescope
Generous 4.2 inch Eye relief
Exposed pop-up locking turrets
Rapid rotation Eyepiece
Calibrated .223-Cal BDC sub tensions
BDC reticle calibrated for .223 55 and 62 grain
Exposed, pop-up locking turrets
Rapid Power Rotation eyepiece
Digital reticle illumination
Generous 4.2″ eye relief
Side focus adjustment for parallax removal
Fully multi-coated optics
Single-piece, 30mm tube
What comes in the box
Sightmark SHR-223 Riflescope
Sightmark Riflescopes target the leading edge of premium, tactical operation optics. Whether your work, competition or passion keeps you going with a modern sporting rifle at the ready, you can depend on the same demanding Sightmark quality you have come to expect in our riflescope lineup.
Built as tough as the professionals who trust Sightmark performance to get them back home to their families after a long, high-stakes day, Sightmark Riflescopes boast rugged yet lightweight, compact hard-anodized 6061-T6 aluminum tubes; premium, fully multi-coated lenses; digital reticle illumination; generous eye relief; rapid power rotation eyepiece; ultra-reliable shockproof, fogproof and IP67 waterproof performance.
Press the digital illumination switch to turn on reticle illumination. To cycle through the brightness settings, press the digital switch consecutive times until the desired brightness level is reached. Settings 1 through 8 are best for daytime use. Settings 9 and 10 are best for low light use. To turn off the reticle illumination, press and hold the digital switch for 3 seconds.
The shepherd reticle is calibrated for .223 Remington 55gr and 62gr and was designed for triple duty application: tactical, competition, and hunting. The duplex reticle was designed for coyote hunting and 3-gun competitions with a 100-yard zero. The design provides a fine central aiming crosshair at higher magnifications and holdovers for 200, 300, 400 and 500 yards. Those respective holdovers were designed to coincide with the average length of a coyote or width of IPSC target, allowing for ranging of your target.
Whole Eyepiece Rotates
Each variable power riflescope is equipped with the rapid power rotation eyepiece. By rotating the entire eyepiece, the magnification will change. This design allows the user to grab any part of the eyepiece to quickly change magnification. The magnification levels are noted on the front of the eyepiece. To increase magnification, turn the eyepiece clockwise. To decrease magnification, turn the eyepiece counter-clockwise.
1-4×20 SHR-223 Riflescope 1-4×20 SCR-300 Riflescope 3-12×32 SHR-223 Riflescope 3-12×32 SCR-300 Riflescope 5-20×40 SCR-308 Riflescope Sightmark 2.5×20 Scout Scope
Magnification (x) 1-4 1-4 3-12 3-12 5-20 2.5
Objective lens diameter (mm) 20 20 32 32 40 20
Parallax setting (yds) 100 100 100 100 25 – 50
Battery type CR2032 CR2032 CR2032 CR2032 CR2032 CR2032
Focal plane 2nd 2nd 2nd 2nd 2nd 2nd
Length/Width/Height (in) 8.7 x 2.9 x 2.2 8.7 x 2.9 x 2.2 11.6 x 2.9 x 2.2 11.6 x 2.9 x 2.2 12.8 x 3.6 x 2.2 7.6 x 2.4 x 1.7
Weight, oz 19.2 19.2 20.8 20.8 23.6 11.8
Reticle SHR-223 SCR-300 SHR-223 SCR-300 SCR-308 TDR
About the Sightmark Brand
Sightmark is a premium producer for long gun scopes, optics, mounts, and other accessories used for firearms like rifles and long guns. They design and make their mounts and related products using building materials which are resilient and long lasting. This includes the Sightmark 3-12×32 SHR-223 Riflescope by Sightmark. For additional shooting products, visit their website.
What You Need to Know About Rifle Glass
Rifle scopes allow you to specifically aim a rifle at various targets by aligning your eye with the target over a distance. They do this through magnification by utilizing a set of lenses inside the scope. The scope’s alignment can be adapted to take into account various ecological factors like wind speed and elevation to make up for bullet drop.
The scope’s purpose is to understand exactly where the bullet will land based on the sight picture you are seeing via the scope as you line up the scope’s crosshair or reticle with the target. A lot of modern rifle scopes and optics have about eleven parts which are found internally and outside of the optic. These parts consist of the rifle scope’s body, lenses, windage dials, focus rings, and other parts. See all eleven parts of a rifle scope.
The Styles of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Choosing the best type of rifle glass is based on what type of shooting you plan on doing.
First Focal Plane Glass Details
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These types of scopes are useful for:
- Quick acquisition, far away types of shooting
- Shooting circumstances where estimations are minimal
- Experienced shooters who know their aim point “hold over” and “lead” relationships for their weapon
- Shooters who don’t mind the reticle is bigger and requires more visual sight area than a SFP reticle
Second Focal Plane Optic Details
Second focal plane optics (SFP) include the reticle behind the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Far away types of shooting where shooters have increased time to make ballistic estimations
- Shooting where most of the shots occur within shorter proximities and ranges
- Shooters who prefer a clearer optic sight picture with less area taken up by the bigger FFP reticle
Ins and Outs of Rifle Optic Magnification
The extent of scope zoom you need on your optic is based on the sort of shooting you want to do. Practically every kind of rifle optic supplies some amount of zoom. The level of magnification a scope gives is determined by the size, thickness, and curvatures of the lenses within the rifle scope. The magnification of the optic is the “power” of the glass. This denotes what the shooter is checking out through the scope is amplified times the power factor of what can usually be seen by human eyes.
Info About Fixed Power Lens Scopes
A single power rifle scope or optic will have a magnification number designator like 4×32. This indicates the magnification power of the scope is 4x power and the objective lens is 32mm. The zoom of this kind of optic can not fluctuate given that it is a fixed power scope.
Variable Power Lens Rifle Optic Info
Variable power rifle scopes can be tweaked between magnified settings. The power modification is achieved by making use of the power ring part of the scope near the rear of the scope by the eye bell.
Rifle Glass Power and Ranges
Here are some recommended scope power settings and the distances where they could be successfully used. Highly magnified optics will not be as efficient as lower magnification glass given that too much magnification can be a negative aspect depending on your shooting distance. The exact same idea applies to extended distances where the shooter needs to have sufficient power to see where to best aim the rifle at the target.
Details on Lens Finishing
All state-of-the-art rifle scope lenses are covered. Lens finish is a significant aspect of a rifle’s setup when buying high end rifle optics and scope equipment.
HD Versus ED Lenses
Some scope producers will also use “HD” or high-def lens finishes which employ different procedures, polarizations, chemicals, and aspects to draw out numerous color ranges and viewable target definition through the lens. This high-def finishing is often used with higher density lens glass which lowers light’s opportunity to refract by means of the lens glass. Some scope makers use “HD” to refer to “ED” signifying extra-low dispersion glass. ED deals with how certain colors are presented on the chroma spectrum and the chromatic deviance or aberration which is also called color distortion or fringing. Chromatic aberration can be visible around items with hard edges and outlines as light hits the item from particular angles.
Details on Single Covering Versus Multi-Coating
Various optic lenses can likewise have different finishings applied to them. All lenses normally have at least some type of treatment or finishing applied to them before they are used in a rifle scope or optic.
This lens treatment can protect the lens from scratches while lowering 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 on the scope maker and how much you paid for it.
Some scope producers likewise make it a point to specify if their optic lenses are coated or “multi” coated. This means the lens has had multiple treatments applied to the surfaces. If a lens receives several treatments, it can establish that a producer is taking multiple steps to combat different natural aspects like an anti-glare covering, a scratch resistant anti-abrasion covering, followed by a hydrophilic finish. This also doesn’t always indicate the multi-coated lens will perform better than a single coated lens. Being “better” is dependent on the maker’s lens treatment technology and the quality of products used in developing the rifle optic.
Anti-water Lens Covering
Water on a lens does not support preserving a clear sight picture through an optic at all. Lots of top of the line or premium scope manufacturers will coat their lenses with a hydrophobic or hydrophilic finishing. The Steiner Optics Nano-Protection is a fine example of this sort of treatment. It treats the surface area of the Steiner optic lens so the H2O molecules can not bind to it or create surface tension. The outcome is that the water beads roll off of the scope to maintain a clear, water free sight picture.
Choices for Mounting Glass on Long Guns
Installing approaches for scopes come in a couple of options. There are the basic scope rings which are individually mounted to the optic and one-piece mounts which cradle the scope. These different types of mounts also generally come in quick release variations which use toss levers which permit rifle operators to rapidly install and remove the scopes.
Hex Key Rifle Optic Ring Mounting Solutions
Basic, clamp type mounting scope rings use hex head screws to fix to the flattop design Picatinny scope mount rails on rifles. These forms of scope mounts use double individual rings to support the scope, and are usually constructed from 7075 T6 billet aluminum or similar materials which are manufactured for far away precision shooting. This kind of scope mount is effective for rifle systems which need to have a long lasting, hard use mount which will not shift despite how much the scope is moved about or abuse the rifle takes. These are the type of mounts you really want to have for a faithful scope setup on a far away scouting or competitors long gun which will rarely need to be changed or adjusted. Blue 242 Loctite threadlocker can also be used on the scope mount’s screws to prevent the hex screws from backing out after they are mounted safely in position. An example of these mounting rings are the 30mm style made by the Vortex Optics brand. The set typically costs around $200 USD
Quick-Release Cantilever Rifle Optic Ring Mounting Solutions
These kinds of quick-release rifle scope mounts can be used to rapidly connect and remove a scope from a rifle. Multiple scopes can also be swapped out if they all use a complementary style mount. The quick detach mount style is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach firmly to a flat top design Picatinny rail. This lets the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while keeping accuracy. These kinds of mounts are useful and beneficial for shooting platforms which are shipped a lot, to take off the optic from the rifle for protection, or for scopes which are utilized in between several rifles. An example of this mount style is the 30mm mount designed by Vortex Optics. It generally costs around $250 USD
Info Around Rifle Optic Tube Sealing and Gas Purging
Moisture inside your rifle optic can mess up a day of shooting and your highly-priced optic by inducing fogging and making residue within the scope tube. A lot of optics protect against humidity from entering the optical tube with a series of sealing O-rings which are water resistant. Generally, these water resistant scopes can be immersed underneath 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be more than enough humidity avoidance for basic use rifles, unless you intend on taking your rifle sailing and are concerned about the optic still working if it goes overboard and you can still rescue the gun.
Rifle Scope Gas Purging
Another component of avoiding the buildup of wetness within the rifle optic’s tube is filling the tube with a gas like nitrogen. Because this space is already occupied by the gas, the glass is less influenced by condition changes and pressure differences from the outside environment which might possibly permit water vapor to seep in around the seals to fill the void which would otherwise be there. These are good qualities of a decent rifle scope to look for.