Description
Rifle Scope Product Details
Schmidt Bender PM II 5-25×56 Riflescope 677-911-812-94-67
Schmidt Bender PM II 5-25×56 Riflescope 677-911-812-94-67
Rifle Scope Product Features
About the Schmidt & Bender Company
Schmidt & Bender is a premium supplier for firearm scopes, optics, mounting solutions, and other add-ons used for guns like rifles and long guns. They create and build their mounts and related products by using building materials which are long lasting and durable. This includes the Schmidt Bender PM II 5-25×56 Riflescope 677-911-812-94-67 by Schmidt & Bender. For more shooting items, visit their website.
What You Need to Know About Glass
Rifle scopes permit you to precisely align a rifle at different 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 alignment can be adjusted to take into account numerous natural elements like wind speed and elevation increases to account for bullet drop.
The scope’s purpose is to help shooters understand precisely where the bullet will hit based on the sight picture you are viewing via the optic as you align the scope’s crosshair or reticle with the target. Most modern rifle scopes and optics have around eleven parts which are found inside and outside of the scope. These parts consist of the rifle scope’s body, lenses, windage turrets, focus rings, and other elements. Learn about the eleven parts of scopes.
The Types of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Picking the finest type of rifle scope depends on what type of shooting you plan to do.
About First Focal Plane Scopes
First focal plane scopes (FFP) feature the reticle in front of the magnifying lens. This triggers the reticle to increase in size based upon the extent of magnification being used. The outcome is that the reticle measurements are the same at the enhanced range as they are at the non amplified distance. One tick on a mil-dot reticle at 100 yards without “zoom” is still the identical tick at 100 yards by using 5x “zoom”. These types of scopes are beneficial for:
- Quick acquisition, far away types of shooting
- Shooting circumstances where estimations are very little
- Experienced shooters who recognize their target “hold over” plus “lead” equations for their weapon
- Shooters who do not mind the reticle is enlarged and occupies more visual eyesight room than a SFP reticle
About Second Focal Plane Scopes
Second focal plane optics (SFP) include the reticle behind the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick measurement.
- Long distance types of shooting where shooters have increased time to make ballistic calculations
- Shooting where most shots happen within shorter ranges and spaces
- Shooters who choose a clearer optic picture without area taken up by the larger size FFP reticle
Ins and Outs of Rifle Glass Zoom
The amount of scope magnification you need on your optic depends upon the kind of shooting you desire to do. Virtually every style of rifle optic supplies some degree of magnification. The volume of magnification a scope provides is determined by the dimension, density, and curves of the lens glass within the rifle optic. The magnification level 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 aspect of what can generally be seen by human eyes.
About Single Power Lens Rifle Scopes
A single power rifle 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 magnification of this kind of scope can not change given that it is a set power scope.
Adjustable Power Lens Rifle Glass Info
Variable power rifle scopes use variable power levels. The power adjustment is achieved using the power ring part of the scope near the back of the scope by the eye bell.
Power Levels and Range Correlations
Here are some recommended scope power settings and the distances where they can be effectively used. Highly magnified scopes will not be as beneficial as lower powered glass considering too much magnification can be a bad thing. The exact same idea goes for longer distances where the shooter needs enough power to see exactly where to properly aim the rifle at the target.
Details on Rifle Glass Lens Coverings
All top of the line rifle scope lenses are layered. Lens finish is a significant aspect of a shooting platform when buying high end rifle optics and scope systems.
ED Versus HD Rifle Scopes
Some scope brands also use “HD” or high-definition lens coatings which use various processes, chemicals, polarizations, and aspects to draw out various colors and viewable definition through the lens. Some scope producers use “HD” to refer to “ED” implying extra-low dispersion glass.
Single Rifle Optic Lens Finish Versus Multi-Coating
Different optic lenses can also have various finishings applied to them. All lenses normally have at least some kind of treatment or finish applied to them prior to being used in a rifle scope or optic assembly. This is due to the fact that the lens isn’t simply a raw piece of glass. It becomes part of the finely tuned optic. It requires a coating to be applied to it so that it will be optimally functional in numerous types of environments, degrees of sunlight (full VS shade), and other shooting conditions.
Single covered lenses have a treatment applied to them which is normally a protective and improving multi-purpose treatment. This lens treatment can shield the lens from scratches while minimizing glare and other less useful things experienced in the shooting environment while sighting in with the scope. The quality of a single layered lens depends upon the scope company and just how much you spent paying for it. Both the make and cost are indicators 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 had numerous treatments applied to the surfaces. If a lens gets numerous treatments, it can prove that a company is taking numerous actions to combat various natural aspects like an anti-glare covering, a scratch resistant anti-abrasion finish, followed by a hydrophilic covering. This also doesn’t always imply the multi-coated lens will perform better than a single layered lens. Being “much better” depends on the maker’s lens treatment innovation and the quality of products used in creating the rifle scope.
Hydrophobic Lens Coatings
Water on a lens doesn’t help with preserving a clear sight picture through a scope at all. Many top of the line and military grade optic companies will coat their lenses with a hydrophilic or hydrophobic anti-water finishing.
Glass Mounting Options
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 scope mounts which cradle the scope. These various types of mounts also usually come in quick release versions which use manual levers which allow rifle operators to rapidly mount and dismount the optics.
Hex Key Optic Ring Mounting Solutions
Standard, clamp design mounting scope rings use hex head screws to mount to the flattop design Picatinny scope installation rails on rifles. These types of scope mounts use a couple of separate rings to support the optic, and are often made from 7075 T6 billet aluminum which is developed for long distance accuracy shooting. This type of scope mount is wonderful for rifles which require a long lasting, rock solid mounting solution which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Rifle Scope Rings
These kinds of quick-release rifle scope mounts can be used to rapidly detach a scope from a rifle and reattach it to a different rifle. If they all use a similar style mount, several scopes can often be swapped out on the range. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect nicely to a flat top type Picatinny rail. This allows the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while retaining accuracy. These types of mounts are useful and beneficial for shooting platforms which are transported a lot, to take off the scope glass from the rifle for protection, or for aiming systems which are utilized in between multiple rifles. An example of this mount type is the 30mm mount designed by the Vortex Optics manufacturer. It typically costs around $250 USD
Details on Optic Tube Sealing and Gas Purging
Wetness inside your rifle scope can ruin a day of shooting and your costly optic by causing fogging and developing residue inside of the scope tube. Most scopes prevent moisture from going into the scope tube with a system of sealing O-rings which are waterproof.
Glass Gas Purging
Another element of avoiding the buildup of moisture inside of the rifle scope tube is filling the tube with a gas like nitrogen. Because this area is currently taken up by the gas, the glass is less affected by condition shifts and pressure distinctions from the external environment which could possibly permit water vapor to seep in around the seals to fill the void which would otherwise exist. These are good qualities of a good rifle scope to look for.
