Description
Rifle Scope Product Details
Schmidt Bender PM II 5-25×56 Black P4Fine 677-911-972-I1-H5
Schmidt Bender PM II 5-25×56 Black P4Fine 677-911-972-I1-H5
Rifle Scope Product Features
About the Schmidt & Bender Company
Schmidt & Bender is a premium maker for firearm scopes, optics, mounts, and other components used for firearms like rifles and long guns. They design and build their scopes, mounts, and related products by making the most of elements which are long lasting and resilient. This includes the Schmidt Bender PM II 5-25×56 Black P4Fine 677-911-972-I1-H5 by Schmidt & Bender. For more shooting items, visit their website.
What You Need to Know About Rifle Scopes
Rifle scopes allow you to exactly aim a rifle at different targets by aligning your eye with the target at range. They do this through magnification using a set of lenses inside the scope. The scope’s positioning can be dialed in to account for many ecological factors like wind and elevation decreases to make up for bullet drop.
The scope’s function is to help shooters understand precisely where the bullet will land based upon the sight picture you are seeing using the scope as you align the scope’s crosshair or reticle with the intended target. Most modern-day rifle scopes have around 11 parts which are located within and outside of the scope. These optic pieces consist of the rifle scope’s body, lenses, elevation turrets, objective focus rings, and other elements. 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” kind of scopes. The form of focal plane an optic has decides where the reticle or crosshair is located relative to the optic’s magnification. It literally means the reticle is situated behind or before the magnification lens of the optic. Picking the most effective form of rifle scope is based on what form of shooting or hunting you plan on undertaking.
First Focal Plane Glass
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These styles of scopes are useful for:
- Quick acquisition, far away kinds of shooting
- Shooting circumstances where calculations are minimal
- Experienced shooters who know their target “hold over” and also “lead” equations for their firearm
- Shooters who do not mind the reticle is enlarged and occupies more visual sight space than a SFP reticle
Second Focal Plane Optic Facts
Second focal plane optics (SFP) include the reticle to the rear of the magnification lens. This causes the reticle to stay at the very same overall size in connection with the level of magnification being used. The result is that the reticle dimensions alter based on the magnification chosen to shoot over lengthier ranges considering that the reticle measurements represent distinct increments which can vary with the zoom. 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. These styles of glass work for:
- Long distance styles of shooting where shooters have increased time to make ballistic calculations
- Shooting where most of the shots occur within much shorter spaces and ranges
- Shooters who choose a clearer optic picture with less area taken up by the larger size FFP reticle
Magnification for Rifle Optics
The amount of zoom a scope provides is identified by the size, density, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Fixed Single Power Lens Optic Info
A single power rifle scope or optic uses a magnification number designator like 4×32. This implies the magnification power of the scope is 4x power while the objective lens is 32mm. The zoom of this kind of optic can not change given that it is set from the factory.
Variable Power Lens Scope Info
Variable power rifle scopes can be modified between magnified settings. The power adjustment is handled by making use of the power ring part of the scope near the back of the scope by the eye bell.
Glass Power Level and Range Correlation
Here are some advised scope power settings and the ranges where they may be efficiently used. High power scopes will not be as efficient as lower powered optics considering that too much zoom can be a negative aspect depending on your shooting distance. The same idea relates to extended ranges where the shooter needs increased power to see where to best aim the rifle at the target.
Details on Lens Covering
All modern rifle scope and optic lenses are layered. There are different types and qualities of glass finishes. When shopping for high end rifle optics and scope units, Lens covering can be a critical element of defining the rifle’s capability. The lenses are among the most important components of the glass given that they are what your eye sees through while sighting a rifle in on the target. The finish on the lenses protects the lens surface area as well as assists with anti glare from refracted sunrays and color visibility.
HD Versus ED Lens Coatings
Some scope producers also use “HD” or high-definition lens finishings which use various techniques, chemicals, components, and polarizations to draw out various colors and viewable definition through the lens. Some scope manufacturers use “HD” to refer to “ED” to signify the lens has extra-low dispersion glass.
Details on Single Coating Versus Multi-Coating
Different scope lenses can even have different finishes applied to them. All lenses usually have at least some kind of treatment or finishing applied to them prior to being used in a rifle scope or optic assembly. Because the lens isn’t just a raw piece of glass, they require performance enhancing coatings. It becomes part of the carefully tuned optic. It must have a coating placed on it so that the lens will be optimally usable in lots of kinds of environments, degrees of light (full light VS shaded), and other shooting conditions.
Single covered lenses have a treatment applied to them which is usually a protective and improving multi-purpose treatment. This lens treatment can preserve the lens from scratches while minimizing glare and other less advantageous things experienced in the shooting environment while sighting in with the optic. The quality of a single covered lens depends upon the scope company 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 coated or “multi” coated. This indicates the lens has several treatments applied to the surfaces. If a lens gets several treatments, it can prove that a manufacturer is taking multiple actions to combat various natural elements like an anti-glare finish, a scratch resistant anti-abrasion coating, followed by a hydrophilic finish. This also doesn’t always suggest the multi-coated lens is much better than a single coated lens. Being “better” depends on the maker’s lens treatment technology and the quality of components used in developing the rifle scope.
Anti-water Lens Finishing
Water on a lens doesn’t help with maintaining a clear sight picture through a scope at all. Numerous top of the line and high-end scope makers will coat their lenses with a hydrophilic or hydrophobic finish.
Alternatives for Mounting Rifle Optics on Firearms
Installing approaches for scopes are available in a few choices. There are the basic scope rings which are individually installed to the optic and one-piece mounts which cradle the scope. These different kinds of mounts also normally come in quick release versions which use manual levers which permit rifle operators to quickly install and remove the optics.
Hex Key Rifle Glass Rings
Basic, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mounting rails on the tops of rifles. These types of scope mounts use a pair of individual rings to support the scope, and are normally made from 7075 T6 billet aluminum or similar materials which are developed for far away accuracy shooting. This type of scope mount is excellent for rifles which need to have a long lasting, unfailing mount which will not move regardless of just how much the scope is moved or abuse the rifle takes. These are the type of mounts you should get for a devoted scope system on a far away scouting or sniper competition firearm which will seldom need to be changed or recalibrated. Blue 242 Loctite threadlocker can additionally be used on screws to keep the hex screw threads from backing out after they are installed safely in position. An example of these mounting rings are the 30mm type from Vortex Optics. The set generally costs around $200 USD
Quick-Release Cantilever Rifle Optic Ring Mounts
These types of quick-release rifle scope mounts can be used to quickly take off a scope from a rifle and reattach it to a different rifle. If they all use a similar design mount, a number of scopes can also be switched out. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers attach nicely 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 keeping accuracy. These types of mounts are useful and convenient for rifles which are transferred a lot, to remove the glass from the rifle for protection, or for scopes which are employed in between multiple rifles. An example of this mount style is the 30mm mount designed by the Vortex Optics manufacturer. It usually costs around $250 USD
Sealing and Gas Purging for Glass Tubes
Moisture inside your rifle scope can destroy a day of shooting and your highly-priced optic by causing fogging and developing residue inside of the scope’s tube. A lot of scopes protect against wetness from going into the optical tube with a series of sealing O-rings which are waterproof. Usually, these water resistant optics can be immersed within 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be plenty of moisture prevention for standard use rifles for hunting and sporting purposes, unless you plan on taking your rifle on boats and are worried about the optic still functioning if it is submerged in water and you can still rescue the firearm.
Gas Purged Scope Tubes
Another part of avoiding the buildup of wetness inside of the rifle optic tube is filling the tube with a gas like nitrogen. Because this space is already occupied by the gas, the optic is less influenced by temp shifts and pressure differences from the outdoor environment which might possibly permit water vapor to permeate 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.
