Description
Rifle Scope Product Details
Schmidt Bender 3-20×50 PM II Ultra Short LP H2CMR 667-911-942-F2-E9
Schmidt Bender 3-20×50 PM II Ultra Short LP H2CMR 667-911-942-F2-E9
Rifle Scope Product Features
About the Schmidt & Bender Brand
Schmidt & Bender is a premium company for firearm scopes, optics, mounting solutions, and other add-ons used for firearms like rifles and long guns. They create and supply their scopes, mounts, and related products by using materials which are durable and long lasting. This includes the Schmidt Bender 3-20×50 PM II Ultra Short LP H2CMR 667-911-942-F2-E9 by Schmidt & Bender. For additional shooting items, visit their site.
What You Need to Know About Rifle Scopes
Rifle scopes permit you to specifically align a rifle at different targets by lining up your eye with the target over a distance. They do this through magnification by using a set of lenses within the scope. The scope’s alignment can be adjusted for consideration of various natural things like wind speed and elevation decreases to make up 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 using the optic as you align the scope’s crosshair or reticle with the intended point of impact. The majority of modern rifle scopes have about 11 parts which are located internally and outside of the optic. These optic pieces include the rifle scope’s body, lenses, modification turrets, focus rings, and other parts. Learn about the eleven parts of glass.
Rifle Optic Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Picking the perfect type of rifle glass depends on what type of shooting you plan on doing.
First Focal Plane Glass Facts
Focal plane scopes (FFP) include the reticle in front of the zoom lens. These styles of scopes are helpful for:
- Quick acquisition, far away types of shooting
- Shooting scenarios where estimations are very little
- Experienced shooters who recognize their aim point “hold over” and “lead” relationships for their firearms
- Shooters who don’t mind the reticle is bigger and takes up more visual eyesight room than a SFP reticle
Second Focal Plane Optics
Second focal plane scopes (SFP) feature the reticle behind the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Long distance forms of shooting where shooters have additional time to make ballistic computations
- Shooting where most of the shots happen within shorter ranges and distances
- Shooters who choose a clearer optic sight picture with less area taken up by the larger size FFP reticle
Details on Glass Zoom
The amount of magnification a scope provides is determined 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.
Info on Fixed Single Power Lens Rifle Optics
A single power rifle scope or optic comes with a zoom number designator like 4×32. This indicates the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of optic can not change because it is fixed.
Adjustable Power Lens Rifle Scope Details
Variable power rifle scopes use variable power levels. The power adjustment is handled using the power ring part of the scope near the back of the scope by the eye bell.
Rifle Glass Power Level and Range Correlation
Here are some recommended scope power settings and the distances where they can be efficiently used. Highly magnified optics will not be as beneficial as lower magnification scopes given that too much magnification can be a bad thing. The same idea relates to extended distances where the shooter needs adequate power to see where to properly aim the rifle at the target.
Rifle Optic Lens Covering
All modern rifle scope lenses are layered. There are various types and qualities of glass coatings. When considering luxury rifle optical units, Lens coating can be an essential element of a rifle. The lenses are among the most essential pieces of the scope as they are what your eye sees through while sighting a rifle in on the point of impact. The covering on the lenses shields the lens surface and improves anti glare capabilities from excess sunlight and color recognition.
HD Versus ED Lens Coatings
Some rifle scope suppliers also use “HD” or high-definition lense finishings which take advantage of various procedures, rare earth compounds, polarizations, and aspects to draw out numerous color ranges and viewable definition through lenses. This HD covering is commonly used with higher density glass which decreases light’s capability to refract through the lens glass. Some scope vendors use “HD” to describe “ED” implying extra-low dispersion glass. ED deals with how colors are represented on the chromatic spectrum and the chromatic difference or aberration which is similarly called color distortion or fringing. Chromatic aberration is often noticeable over items with defined shapes as light hits the item from particular angles.
Single Covering Versus Multi-Coating for Optics
Different optic lenses can likewise have various finishings applied to them. All lenses normally have at least some type of treatment or finish applied to them prior to being used in a rifle scope or optic.
This lens treatment can offer protection to 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 layered lens depends on the scope manufacturer and how much you paid for it.
Some scope producers similarly make it a point to specify if their optic lenses are covered or “multi” coated. Being “better” depends on the manufacturer’s lens treatment innovation and the quality of materials used in developing the rifle scope.
Hydrophobic Rifle Glass Lens Finishing
Water on a scope lens does not assist with maintaining a clear sight picture through a scope whatsoever. Many top of the line and high-end optic makers will coat their lenses with a hydrophilic or hydrophobic covering. The Steiner Optics Nano-Protection is a good example of this type of treatment. It treats the exterior of the Steiner glass lens so the water molecules can not bind to it or develop surface tension. The result is that the water beads sheet off of the scope to preserve a clear, water free sight picture.
Scope Installation Options
Installing options for scopes are available in a few options. There are the standard scope rings which are individually mounted to the optic and one-piece scope mounts which cradle the scope. These various kinds of mounts also normally come in quick release variations which use manual levers which enable rifle shooters to rapidly install and remove the optics.
Hex Key Rifle Scope Rings
Normal, 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 a couple of separate rings to support the optic, and are made from 7075 T6 billet aluminum which are designed for long range accuracy shooting. This type of scope mount is great for rifles which need a resilient, rock solid mount which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Scope Rings
These types of quick-release rifle scope mounts can be used to quickly detach a scope from a rifle and reattach it to a different rifle. If they all use a comparable style mount, several scopes can also be swapped out on the range. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect tightly to a flat top style Picatinny rail. This permits the scope to be sighted in while on the rifle, removed from the rifle, and remounted while retaining precision. These types of mounts are useful and handy for rifles which are moved around a lot, to remove the glass from the rifle for protection, or for optics which are chosen for use between a number of rifles. An example of this mount style is the 30mm mount designed by the Vortex Optics manufacturer. It normally costs around $250 USD
Info on Rifle Scope Tube Sealing and Gas Purging
Wetness inside your rifle optic can mess up a day of shooting and your expensive optic by triggering fogging and developing residue inside of the scope tube. Many scopes avoid wetness from entering the scope tube with a system of sealing O-rings which are waterproof.
Rifle Optic Gas Purging
Another component of preventing the buildup of wetness within the rifle optic’s tube is filling the tube with a gas like nitrogen. Considering that this space is currently occupied by the gas, the glass is less influenced by temp shifts and pressure variations from the outdoor environment which may possibly enable 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 look for.
