Description
Rifle Scope Product Details
Schmidt Bender PM II 5-25×56 Riflescope 677-911-422-L7-I5
Schmidt Bender PM II 5-25×56 Riflescope 677-911-422-L7-I5
Rifle Scope Product Features
About the Schmidt & Bender Manufacturer
Schmidt & Bender is a premium manufacturer for firearm scopes, optics, mounts, and other components used for guns like rifles and long guns. They design and make their products by applying materials which are durable and long lasting. This includes the Schmidt Bender PM II 5-25×56 Riflescope 677-911-422-L7-I5 by Schmidt & Bender. For additional shooting items, visit their site.
Info About Rifle Scopes
Rifle scopes allow you to specifically aim a rifle at various targets by lining up your eye with the target over a range. They accomplish this through magnifying the target by making use of a set of lenses within the scope. The scope’s alignment can be adjusted for the consideration of various environmental elements like wind speed and elevation increases to account for bullet drop.
The scope’s function is to help shooters understand exactly where the bullet will land based upon the sight picture you are viewing using the scope as you line up the scope’s crosshair or reticle with the intended point of impact. Many modern rifle scopes have about eleven parts which are arranged inside and externally on the scope body. These parts consist of the rifle scope’s body, lenses, modification turrets or dials, focus rings, and other components. Learn about the eleven parts of optics.
Rifle Scope Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The kind of focal plane a scope has establishes where the reticle or crosshair lies in connection with the optic’s zoom. It actually means the reticle is behind or before the magnifying lens of the scope. Picking out the most effective kind of rifle optic is dependent on what style of hunting or shooting you anticipate doing.
Info on First Focal Plane Optics
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These kinds of scopes are useful for:
- Quick acquisition, long distance types of shooting
- Shooting circumstances where estimations are minimal
- Experienced shooters who understand their aim point “hold over” and also “lead” ratios for their firearm
- Shooters who don’t mind the reticle is enlarged and occupies more visual sight room than a SFP reticle
About Second Focal Plane Scopes
Second focal plane glass (SFP) come with the reticle behind the magnifying lens. This triggers the reticle to stay at the same overall size in connection with the volume of zoom being used. The effect is that the reticle dimensions alter based upon the zoom used to shoot over greater ranges since the markings present distinct increments which can vary with the zoom level. In the FFP example with the SFP optic, the 5x “zoom” one hundred yard tick reticle measurement would be 1/5th of the non “zoom” tick measurement. These kinds of scopes work for:
- Far away types of shooting where shooters have additional time to make ballistic computations
- Shooting where most of the shots occur within much shorter spaces and ranges
- Shooters who would like a clearer optic picture with less space used up by the enlarged FFP reticle
Rifle Optic Magnification
The quantity of zoom a scope offers is figured out by the diameter, thickness, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Info About Fixed Single Power Lens Rifle Optics
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 magnification of this type of optic can not adjust because it is a fixed power scope.
About Variable Power Lens Glass
Variable power rifle scopes can be adjusted between magnification power levels. It will note the magnification degree in a format like 2-10×32. These numbers indicate the magnification of the scope can be changed between 2x and 10x power. This always includes the powers in-between 2 and 10. The power adjustment is achieved utilizing 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 powers and the ranges where they can be efficiently used. Highly magnified rifle scope glass will not be as useful as lower magnification level scopes since too much magnification can be a negative aspect depending on your shooting distance. The same applies to extended distances where the shooter needs to have increased power to see where to best aim the rifle.
Lens Coating for Scopes
All modern rifle scope lenses are coated. There are different types and qualities of finishes. When considering luxury rifle scope devices, Lens coating can be a crucial aspect of defining the rifle’s capability. The glass lenses are one of the most key pieces of the optic considering that they are what your eye sees through while sighting a rifle in on the point of impact. The finish on the lenses shields the lens surface and also improves anti glare from refracted direct sunlight and color recognition.
HD Versus ED Lens Coatings
Some scope brands also use “HD” or high-definition lens finishings which use various techniques, aspects, polarizations, and chemicals to draw out different colors and viewable quality through the lens. Some scope producers use “HD” to refer to “ED” to signify the lens has extra-low dispersion glass.
Single Scope Lens Covering Versus Multi-Coating
Different optic lenses can even have different coatings applied to them. All lenses typically have at least some kind of treatment or coating applied to them prior to being used in a rifle scope or optic assembly. This is because the lens isn’t simply 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 usable in many kinds of environments, degrees of sunlight (full VS shade), and other shooting conditions.
Single coated lenses have a treatment applied to them which is typically a protective and boosting multi-purpose treatment. This lens treatment can safeguard 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 coated lens depends upon the scope company and how much money you paid for it. Both the make and cost are signs of the lens quality.
Some scope makers also make it a point to specify if their optic lenses are covered or “multi” covered. This suggests the lens has numerous treatments applied to them. If a lens receives multiple treatments, it can indicate that a company is taking multiple steps to combat different environmental factors like an anti-glare covering, a scratch resistant anti-abrasion finish, followed by a hydrophilic finishing. This additionally does not always imply the multi-coated lens will perform better than a single covered lens. Being “much better” depends upon the producer’s lens treatment techniques and the quality of glass used in developing the rifle glass.
Rifle Scope Lens Hydrophobic Finishing
Water on a scope’s lens doesn’t improve maintaining a clear sight picture through an optic at all. Many top of the line and premium scope makers will coat their lenses with a hydrophobic or hydrophilic covering. The Steiner Optics Nano-Protection is a fine example of this kind of treatment. It treats the surface of the Steiner glass lens so the H2O molecules can not bind to it or develop surface tension. The outcome is that the water beads sheet off of the scope to keep a clear, water free sight picture.
Rifle Glass Installing Choices
Mounting solutions for scopes can be found in a few options. There are the basic scope rings which are separately installed to the optic and one-piece mounts which cradle the scope. These various types of mounts also typically are made in quick release variations which use toss levers which enable rifle shooters to rapidly install and remove the scope.
Hex Key Rifle Optic Rings
Basic, clamp style mounting optic rings use hex head screws to fix to the flattop style Picatinny scope mount rails on rifles. These kinds of scope mounts use a pair of individual rings to support the scope, and are usually constructed from 7075 T6 billet aluminum or similar materials which are manufactured for long distance precision shooting. This form of scope mount is excellent for rifle systems which are in need of a resilient, hard use mount which will not move regardless of just how much the scope is moved or abuse the rifle takes. These are the style of mounts you really want to have for a faithful optics system on a reach out and touch someone hunting or competition firearm that will hardly ever need to be changed or recalibrated. Blue 242 Loctite threadlocker can additionally be used on screws to prevent the hex screw threads from wiggling out after they are installed firmly in place. An example of these mounting rings are the 30mm style from Vortex Optics. The set usually costs around $200 USD
Quick-Release Cantilever Rifle Glass Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to quickly connect and detach a scope from a rifle. Several scopes can also be swapped out if they all use a similar style mount. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect solidly to a flat top design Picatinny rail. This allows the scope to be sighted in while on the rifle, taken off of the rifle, and remounted back on the rifle while maintaining precision. These types of mounts are useful and convenient for shooting platforms which are shipped a lot, to take off the optic from the rifle for protection, or for aiming systems which are adopted between several rifles. An example of this mount type is the 30mm mount designed by the Vortex Optics manufacturer. It typically costs around $250 USD
Sealing and Gas Purging for Scope Tubes
Moisture inside your rifle scope can spoil a day on the range and your costly optic by causing fogging and developing residue within the scope’s tube. Most optics prevent moisture from getting in the scope tube with a system of sealing O-rings which are water resistant. Generally, these optics can be immersed beneath 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be sufficient wetness prevention for common use rifles, unless you anticipate taking your rifle on a boat and are concerned about the scope still working if it is submerged in water and you can still salvage the gun.
About Rifle Glass Tube Gas Purging
Another component of preventing the buildup of moisture inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Given that this area is already taken up by the gas, the optic is less influenced by condition shifts and pressure differences from the external environment which could possibly permit water vapor to permeate in around the seals to fill the void which would otherwise exist. These are good qualities of a good rifle scope to seek out.
