Description
Rifle Scope Product Details
Schmidt Bender PM II 5-25×56 Riflescope 677-911-552-L7-I5
Schmidt Bender PM II 5-25×56 Riflescope 677-911-552-L7-I5
Rifle Scope Product Features
About the Schmidt & Bender Scope Maker
Schmidt & Bender is a premium producer for rifle scopes, optics, mounting solutions, and other accessories used for firearms like rifles and long guns. They style and make their products using building materials which are resilient and long lasting. This includes the Schmidt Bender PM II 5-25×56 Riflescope 677-911-552-L7-I5 by Schmidt & Bender. For additional shooting products, visit their site.
What You Need to Know About Glass
Rifle scopes permit you to precisely aim a rifle at different targets by aligning your eye with the target at range. They do this through magnification by using a set of lenses within the scope. The scope’s positioning can be dialed in to take into account separate environmental factors like wind speed and elevation decreases to account for bullet drop.
The scope’s function is to understand precisely where the bullet will hit based on the sight picture you are seeing via the optic as you line up the scope’s crosshair or reticle with the intended point of impact. Many modern-day rifle scopes and optics have around 11 parts which are found within and on the exterior of the scope body. These optic pieces include the rifle scope’s body, lenses, elevation turrets or dials, objective focus rings, and other elements. See all eleven parts of scopes.
Rifle Optic Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The kind of focal plane an optic has establishes where the reticle or crosshair lies relative to the optic’s zoom. It literally suggests the reticle is situated behind or ahead of the magnification lens of the optic. Picking the very best sort of rifle scope depends on what sort of shooting you anticipate undertaking.
About First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. These types of scopes are helpful for:
- Quick acquisition, long distance types of shooting
- Shooting situations where estimations are small
- Experienced shooters who understand their target “hold over” plus “lead” ratios for their weapon
- Shooters who don’t mind the reticle is bigger and requires more visual sight area than a SFP reticle
About Second Focal Plane Glass
Second focal plane scopes (SFP) feature the reticle to the rear of the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Far away forms of shooting where shooters have increased time to make ballistic calculations
- Shooting where most of the shots take place within shorter spaces and ranges
- Shooters who prefer a clearer optic picture without room used up by the enlarged FFP reticle
Magnification for Rifle Glass
The measure of scope zoom you require depends upon the style of shooting you desire to do. Pretty much every kind of rifle scope provides some level of magnification. The volume of magnification a scope supplies is established by the size, density, and curvatures of the lenses within the rifle optic. The magnification of the optic is the “power” of the opic. This suggests what the shooter is looking at through the scope is amplified times the power element of what can generally be seen by human eyes.
About Single Power Lens Glass
A single power rifle optic or scope uses a magnification number designator like 4×32. This suggests the magnification power of the scope is 4x power and the objective lens is 32mm. The zoom of this kind of optic can not change since it is a fixed power optic.
About Variable Power Lens Optics
Variable power rifle scopes have adjustable power. These types of scopes will note the zoom level in a format like 2-10×32. These numbers indicate the zoom of the scope could be changed between 2x and 10x power. This always incorporates the powers in-between 2 and 10. The power manipulation is achieved by operating the power ring part of the scope near the back of the scope by the eye bell piece.
Power and Range Correlations
Here are some advised scope power settings and the ranges where they may be successfully used. Remember that high magnification scopes will not be as practical as lower magnification level scopes because increased zoom can be a detractor. The exact same idea applies to extended distances where the shooter needs increased power to see where to best aim the rifle.
Details on Lens Finishing
All current rifle optic and scope lenses are layered. Lens coating can be an essential aspect of a rifle when looking into high end rifle optics and scope equipment.
ED Versus HD Glass
Some optic manufacturers even use “HD” or high-definition glass finishings which take advantage of different procedures, chemicals, aspects, and polarizations to extract different color ranges and viewable target definition through the lens. This HD finishing is commonly used with more costly high density glass which brings down light’s potential to refract through the lens glass. Some scope corporations use “HD” to refer to “ED” meaning extra-low dispersion glass. ED deals with how certain colors are presented on the chroma spectrum and the chromatic aberration or difference which is similarly called color distortion or fringing. Chromatic aberration may be visible around things with well defined shapes as light hits the item from various angles.
Single Optic Lens Finish Versus Multi-Coating
Various 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. This is because the lens isn’t just a raw piece of glass. It becomes part of the finely tuned optic. It requires a coating to be applied to it so that the lens will be efficiently usable in lots of kinds of environments, degrees of sunshine (full VS shade), and other shooting conditions.
Single coated lenses have a treatment applied to them which is usually a protective and boosting multi-purpose treatment. This lens treatment can preserve the lens from scratches while minimizing glare and other less helpful things experienced in the shooting environment while sighting in with the optic. The quality of a single coated lens depends on the scope manufacturer and just how much you spent for it. Both the make and cost are signs of the lens quality.
Some scope producers similarly make it a point to define if their optic lenses are covered or “multi” covered. Being “much better” depends on the producer’s lens treatment innovation and the quality of products used in constructing the rifle scope.
Anti-water Lens Finishing
Water on an optic’s lens doesn’t improve keeping a clear sight picture through a scope at all. Numerous top of the line and premium scope producers will coat their lenses with a hydrophobic or hydrophilic finishing. The Steiner Optics Nano-Protection is a fine example of this type of treatment. It provides protection for the exterior of the Steiner optic lens so the water particles can not bind to it or create surface tension. The result is that the water beads move off of the scope to maintain a clear, water free sight picture.
Rifle Glass Installation Alternatives
Mounting solutions for scopes come in a couple of options. There are the basic scope rings which are separately mounted to the scope and one-piece mounts which cradle the scope. These different kinds of mounts also normally can be found in quick release variations which use toss levers which allow rifle operators to rapidly install and remove the glass.
Hex Key Rifle Scope Ring Mounts
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 separate rings to support the optic, and are made from 7075 T6 billet aluminum which are developed for long distance accuracy shooting. This type of scope mount is wonderful 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 Rifle Optic Rings
These types of quick-release rifle scope mounts can be used to rapidly take off a scope and connect it to a different rifle. Numerous scopes can also be switched out if they all use a similar design mount. These types of mounts come in handy for rifle platforms which are carried a lot, to swap out the optic from the rifle for protection, or for optics which are used in between several rifles.
Optic Tube Sealing and Gas Purging
Moisture inside your rifle optic can mess up a day on the range and your costly optic by resulting in fogging and creating residue within the scope’s tube. Most optics prevent moisture from entering the optical tube with a series of sealing O-rings which are waterproof. Typically, these water resistant 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 more than enough moisture content avoidance for standard use rifles for hunting and sporting purposes, unless you intend on taking your rifle on boats and are concerned about the scope still performing if it goes over the side and you can still retrieve the firearm.
Rifle Optic Gas Purging
Another part of avoiding the accumulation of moisture inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Since this area is already taken up by the gas, the glass is less altered by temperature level alterations and pressure variations from the outdoor environment which may possibly allow water vapor to seep in around the seals to fill the void which would otherwise be there. These are good qualities of a good rifle scope to seek out.
