Description
Last update on August 18, 2022 // Source: Amazon API
Rifle Scope Product Details
Schmidt Bender PM II 3-27×56 Riflescope 669-911-972-M2-I5
Schmidt Bender PM II 3-27×56 Riflescope 669-911-972-M2-I5
Rifle Scope Product Features
About the Schmidt & Bender Scope Maker
Schmidt & Bender is a premium manufacturer for long gun scopes, optics, mounting solutions, and other accessories used for guns like rifles and long guns. They design and supply their scopes and related products by applying materials which are long lasting and resilient. This includes the Schmidt Bender PM II 3-27×56 Riflescope 669-911-972-M2-I5 by Schmidt & Bender. For more shooting products, visit their website.
Information Rifle Glass
Rifle scopes allow you to specifically align a rifle at different targets by lining up your eye with the target at range. They do this through magnification using a series of lenses inside the scope. The scope’s alignment can be dialed in to account for separate natural aspects like wind and elevation to account for bullet drop.
The scope’s function is to help shooters understand exactly where the bullet will hit based upon the sight picture you are seeing with the scope as you line up the scope’s crosshair or reticle with the target. The majority of modern-day rifle scopes and optics have around 11 parts which are found inside and on the exterior of the scope body. These parts consist of the rifle scope’s body, lenses, modification turrets or dials, focus rings, and other parts. Learn about the eleven parts of optics.
Rifle Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Considering the best type of rifle glass 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 zoom lens. These styles of scopes are helpful for:
- Quick acquisition, long distance kinds of shooting
- Shooting circumstances where calculations are very little
- Experienced shooters who know their target “hold over” as well as “lead” correlations for their firearm
- Shooters who don’t mind the reticle is enlarged and takes up more visual eyesight area than a SFP reticle
Info About Second Focal Plane Glass
Second focal plane scopes (SFP) feature the reticle behind the magnification 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 reticle measurement.
- Far away types of shooting where shooters have increased time to make ballistic calculations
- Shooting where most shots occur within shorter proximities and ranges
- Shooters who want a clearer optic sight picture without room used up by the larger sized FFP reticle
Zoom for Scopes
The amount of scope magnification you need on your glass is based on the kind of shooting you choose to do. Almost every kind of rifle scope delivers some degree of magnification. The amount of magnification a scope gives is identified by the size, density, and curvatures of the lens glass within the rifle optic. The magnifying level of the optic is the “power” of the opic. This means what the shooter is checking out through the scope is amplified times the power element of what can usually be seen by human eyes.
Info on Fixed Single Power Lens Glass
A single power rifle optic and scope will have 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 given that it is a fixed power optic.
Adjustable Power Lens Scope Facts
Variable power rifle scopes can be adjusted between magnification increments. These types of scopes will list the zoom level in a configuration such as 2-10×32. These numbers suggest the zoom of the scope could be adjusted in between 2x and 10x power. This additionally incorporates the powers in-between 2 and 10. The power modification is accomplished by employing the power ring component of the scope near the rear of the scope by the eye bell.
Power Levels and Range
Here are some recommended scope powers and the ranges where they can be effectively used. Highly magnified optics will not be as useful as lower magnification glass given that too much zoom can be a negative aspect depending on your shooting distance. The same idea relates to extended distances where the shooter needs to have sufficient power to see exactly where to properly aim the rifle.
Info on Scope Lens Finishes
All current rifle optic lenses are coated. Lens covering is an important element of a rifle’s setup when purchasing high end rifle optics and scope equipment.
HD Versus ED Rifle Glass Lens Coatings
Some glass companies also use “HD” or high-def lens coatings that make the most of various processes, polarizations, aspects, and chemicals to draw out different colors and viewable target visibility through lenses. This HD finish is often used with higher density glass which drops light’s chance to refract through the lens glass. Some scope suppliers use “HD” to refer to “ED” indicating extra-low dispersion glass. ED deals with how colors are represented on the chromatic spectrum and the chromatic aberration or difference which is similarly called color distortion or fringing. Chromatic aberration can be obvious over things with hard edges and shapes as light hits the item from various angles.
Single Finish Versus Multi-Coating for Rifle Scopes
Different scope lenses can also have different finishings applied to them. All lenses usually have at least some kind of treatment or covering applied to them before they are used in a rifle scope or optic assembly. This is since the lens isn’t just 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 optimally functional in many types of environments, degrees of sunlight (full light VS shade), and other shooting conditions.
Single covered lenses have a treatment applied to them which is typically a protective and enhancing multi-purpose treatment. This lens treatment can preserve the lens from scratches while decreasing glare and other less beneficial things experienced in the shooting environment while sighting in with the optic. The quality of a single layered lens depends upon the scope manufacturer and how much money you spent for it. The scope’s maker 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” coated. Being “better” depends on the producer’s lens treatment technology and the quality of materials used in developing the rifle scope.
Rifle Optic Lens Hydrophobic Coating
Water on a scope’s lens doesn’t improve maintaining a clear sight picture through an optic at all. Numerous top of the line and premium optic producers will coat their lenses with a hydrophobic or hydrophilic finish. The Steiner Optics Nano-Protection is a good example of this type of treatment. It deals with the surface area of the Steiner optic lens so the water particles can not bind to it or develop surface tension. The outcome is that the water beads roll off of the scope to maintain a clear, water free sight picture.
Glass Installing Alternatives
Mounting options for scopes are available in a few options. There are the basic scope rings which are separately mounted to the optic and one-piece mounts which cradle the scope. These various kinds of mounts also generally are made in quick release versions which use toss levers which enable rifle shooters to rapidly mount and dismount the glass.
Hex Key Rifle Glass Ring Mounts
Normal, clamp style 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 is developed for long range precision shooting. This type of scope install is perfect for rifles which require a resilient, sound mounting solution which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Rifle Optic Ring Mounts
These types of quick-release rifle scope mounts can be used to quickly connect and remove a scope from a rifle before reattaching it to a different rifle. Numerous scopes can even be swapped out if they all use a similar design mount. These types of mounts come in handy for rifle platforms which are transported a lot, to swap out the optic from the rifle for protecting the scope, or for optics which are used in between multiple rifles.
Sealing and Gas Purging for Rifle Optic Tubes
Moisture inside your rifle glass can spoil a day on the range and your costly optic by resulting in fogging and creating residue inside of the scope’s tube. Most optics prevent humidity from going into the scope tube with a series of sealing O-rings which are waterproof. Usually, these scopes can be submerged beneath 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be plenty of moisture content prevention for common use rifles for hunting and sporting purposes, unless you anticipate taking your rifle on boats and are worried about the scope still performing if it falls overboard and you can still rescue the firearm.
Glass Gas Purging
Another element of avoiding the buildup of wetness inside of the rifle scope tube is filling the tube with a gas like nitrogen. Given that this area is currently taken up by the gas, the optic is less influenced by temperature level changes and pressure distinctions from the outside environment which could potentially permit water vapor to permeate in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a decent rifle scope to look for.
