Description
Last update on August 13, 2022 // Source: Amazon API
Rifle Scope Product Details
Schmidt Bender PM II 3-20×50 Ultra Short DT II+ P4FL .1 mrad 667-911-972-M2-I5
Schmidt Bender PM II 3-20×50 Ultra Short DT II+ P4FL .1 mrad 667-911-972-M2-I5
Rifle Scope Product Features
About the Schmidt & Bender Manufacturer
Schmidt & Bender is a premium supplier for long gun scopes, optics, mounts, and other accessories used for firearms like rifles and long guns. They design and supply their mounts and related products using elements which are long lasting and durable. This includes the Schmidt Bender PM II 3-20×50 Ultra Short DT II+ P4FL .1 mrad 667-911-972-M2-I5 by Schmidt & Bender. For additional shooting items, visit their site.
Rifle Glass Details
Rifle scopes allow you to specifically align a rifle at different targets by aligning your eye with the target at range. They accomplish this through magnification by utilizing a set of lenses within the scope. The scope’s alignment can be adapted for the consideration of various natural factors like wind speed and elevation decreases to make up for bullet drop.
The scope’s purpose is to help shooters understand exactly where the bullet will hit based on the sight picture you are seeing using the scope as you align the scope’s crosshair or reticle with the target. A lot of modern rifle scopes have about 11 parts which are located internally and on the exterior of the scope. These optic pieces consist of the rifle scope’s body, lenses, modification dials, focus rings, and other parts. See all eleven parts of a rifle optical system.
About Optic Types
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The sort of focal plane an optic has establishes where the reticle or crosshair is located in connection with the scopes magnification. It simply indicates the reticle is behind or ahead of the magnifying lens of the optic. Deciding upon the very best style of rifle optic is dependent on what sort of shooting you anticipate doing.
First Focal Plane Optics
First focal plane glass (FFP) come with the reticle before the magnification lens. This triggers the reticle to increase in size based on the level of magnification being used. The benefit is that the reticle measurements are the same at the amplified range as they are at the non amplified range. As an example, one tick on a mil-dot reticle at one hundred yards without having “zoom” is still the exact same tick at 100 yards using 5x “zoom”. These types of scopes are valuable for:
- Quick acquisition, long distance kinds of shooting
- Shooting scenarios where computations are marginal
- Experienced shooters who know their target “hold over” and also “lead” equations for their weapon
- Shooters who do not mind the reticle is enlarged and requires more visual eyesight space than a SFP reticle
Second Focal Plane Optics
Second focal plane scopes (SFP) include the reticle behind the magnifying lens. This causes the reticle to stay at the same dimensions in connection with the quantity of magnification being used. The outcome is that the reticle measurements alter based upon the zoom chosen to shoot over greater distances since the reticle markings represent different increments which can vary with the magnification. In the FFP example with the SFP optic, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick measurement. These kinds of scopes work for:
- Long distance forms of shooting where shooters have extra time to make ballistic computations
- Shooting where most of the shots occur within shorter spaces and ranges
- Shooters who prefer a clearer optic picture with less room used up by the larger size FFP reticle
Zoom for Rifle Glass
The quantity of scope zoom you need is based on the form of shooting you want to do. Virtually every type of rifle glass offers some amount of zoom. The quantity of magnification a scope provides is identified by the size, thickness, and curves of the lenses within the rifle optic. The magnifying level of the optic is the “power” of the glass. This indicates what the shooter is observing through the scope is magnified times the power element of what can typically be seen by human eyes.
Info on Single Power Lens Rifle Glass
A single power rifle optic comes with a magnification number designator like 4×32. This implies the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this kind of scope can not adjust because it is a fixed power optic.
Variable Power Lens Glass Facts
Variable power rifle scopes use variable power levels. The power modification is handled using the power ring part of the scope near the rear of the scope by the eye bell.
Optic Power Level and Ranges
Here are some suggested scope powers and the distances where they could be efficiently used. Highly magnified scopes will not be as effective as lower magnification optics considering too much zoom can be a negative aspect depending on your shooting distance. The same concept goes for longer distances where the shooter needs to have increased power to see where to properly aim the rifle.
Glass Lens Finish
All top of the line rifle scope and optic lenses are coated. Lens finish can be a vital element of a rifle system when thinking about high end rifle optics and scope systems.
HD Versus ED Glass Lens Coatings
Some scope producers also use “HD” or high-definition lens finishes which use various procedures, chemicals, polarizations, and aspects to draw out separate colors and viewable definition through the lens. Some scope producers use “HD” to refer to “ED” to signify the lens has extra-low dispersion glass.
Single Scope Lens Finish Versus Multi-Coating
Various scope lenses can also have different coatings applied to them. All lenses generally have at least some kind of treatment or finishing applied to them before being used in a rifle scope or optic. Since the lens isn’t simply a raw piece of glass, they require performance enhancing coatings. It is part of the finely tuned optic. It must have a coating applied to it so that the lens will be efficiently functional in lots of kinds of environments, degrees of sunlight (full light VS shaded), and other shooting conditions.
Single coated lenses have a treatment applied to them which is normally a protective and enhancing multi-purpose treatment. This lens treatment can preserve the lens from scratches while lowering 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 upon the scope maker and how much money you spent paying for it. Both the manufacturer and amount are signs of the lens quality.
Some scope producers similarly make it a point to specify if their optic lenses are covered or “multi” covered. Being “better” depends on the maker’s lens treatment technology and the quality of products used in developing the rifle scope.
Anti-water Lens Finishing
Water on a lens doesn’t support keeping a clear sight picture through an optic whatsoever. Numerous top of the line or premium optic manufacturers will coat their lenses with a hydrophobic or hydrophilic coating. The Steiner Optics Nano-Protection is a fine example of this kind of treatment. It treats the exterior surfaces of the Steiner optic lens so the water particles can not bind to it or create surface tension. The outcome is that the water beads sheet off of the scope to maintain a clear, water free sight picture.
Choices for Mounting Optics on Firearms
Mounting approaches for scopes come in a few options. There are the standard scope rings which are individually installed to the optic and one-piece mounts which cradle the scope. These different kinds of mounts also usually come in quick release versions which use throw levers which enable rifle shooters to quickly mount and dismount the scope.
Glass Mounts with Hex Key Rings
Standard, clamp style mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mount rails on rifles. These types of scope mounts use two different rings to support the optic, and are often made from 7075 T6 billet aluminum which are designed for long distance accuracy shooting. This type of scope mount is great for rifles which require a long lasting, rock solid mount which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Scope Ring Mounting Solutions
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 also be swapped out if they all use a compatible design mount. These types of mounts are convenient for rifle platforms which are transferred 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 Glass Tubes
Wetness inside your rifle glass can spoil a day of shooting and your pricey optic by inducing fogging and developing residue inside of the scope tube. A lot of optics protect against moisture from getting in the optical tube with a series of sealing O-rings which are waterproof. Typically, these water resistant scopes can be submerged within 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be ample humidity prevention for common use rifles, unless you intend on taking your rifle sailing and are worried about the scope still performing if it is submerged in water and you can still retrieve the rifle.
Scope Gas Purging
Another component of avoiding the buildup of moisture within the rifle scope tube is filling the tube with a gas like nitrogen. Since this area is already occupied by the gas, the glass is less influenced by condition alterations and pressure differences from the outdoor environment which might potentially enable water vapor to seep in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a decent rifle scope to look for.
