Last update on August 12, 2022 // Source: Amazon API
Rifle Scope Product Details
Schmidt Bender PM II U-S Scope 5-20×50 34mm Tremor 3 .1 mRad DT/MTC/LT
Schmidt Bender PM II U-S Scope 5-20×50 34mm Tremor 3 .1 mRad DT/MTC/LT
Rifle Scope Product Features
About the Schmidt & Bender Manufacturer
Schmidt & Bender is a premium company for long gun scopes, optics, mounting solutions, and other components used for guns like rifles and long guns. They create and make their products working with elements which are resilient and long lasting. This includes the Schmidt Bender PM II U-S Scope 5-20×50 34mm Tremor 3 .1 mRad DT/MTC/LT by Schmidt & Bender. For additional shooting items, visit their website.
Rifle scopes permit you to specifically align a rifle at different targets by aligning your eye with the target over a distance. They do this through magnifying the target by utilizing a set of lenses inside the scope. The scope’s alignment can be dialed in to account for different ecological factors like wind speed and elevation to account for bullet drop.
The scope’s purpose is to help shooters understand precisely where the bullet will land based on the sight picture you are viewing through the optic as you line up the scope’s crosshair or reticle with the intended point of impact. The majority of modern rifle optics have about 11 parts which are found inside 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 components. See all eleven parts of a rifle optical system.
The Types of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The style of focal plane a scope has decides where the reticle or crosshair is located relative to the optic’s magnification. It literally means the reticle is situated behind or ahead of the magnification lens of the scope. Deciding on the most reliable form of rifle scope depends upon what type of hunting or shooting you intend on undertaking.
First Focal Plane Glass Info
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These styles of scopes are helpful for:
- Quick acquisition, far away types of shooting
- Shooting scenarios where computations are small
- Experienced shooters who understand their aim point “hold over” and also “lead” ratios for their firearms
- Shooters who do not mind the reticle is enlarged and takes up more visual sight area than a SFP reticle
Second Focal Plane Scope Info
Second focal plane scopes (SFP) come with the reticle to the rear of the zoom 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 measurement.
- Far away styles of shooting where shooters have extra time to make ballistic computations
- Shooting where most of the shots take place within much shorter ranges and distances
- Shooters who choose a clearer optic picture without room taken up by the larger sized FFP reticle
About Scope Zoom
The amount of scope zoom you need on your optic depends on the sort of shooting you would like to do. Nearly every type of rifle scope supplies some level of magnification. The volume of zoom a scope provides is established by the size, 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 checking out through the scope is magnified times the power aspect of what can normally be seen by human eyes.
Single Power Lens Optic Facts
A single power rifle scope uses a zoom number designator like 4×32. This implies the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of optic can not adjust since it is set from the factory.
Adjustable Power Lens Optic Info
Variable power rifle scopes use enhanced power. The power change is handled by the power ring part of the scope near the rear of the scope by the eye bell.
Power and Range Correlations
Here are some advised scope powers and the distances where they could be efficiently used. Remember that high power optics and scopes will not be as practical as lower powered glass due to the fact that increased magnification can be a bad thing. The exact same idea goes for extended distances where the shooter needs to have increased power to see where to best aim the rifle.
Info on Rifle Scope Lens Finishing
All modern-day rifle glass lenses are covered. Lens finish is a significant element of a shooting platform when thinking about high end rifle optics and scope setups.
HD Versus ED Rifle Scope Lens Coatings
Some glass makers also use “HD” or high-def lens coverings that make the most of various processes, rare earth compounds, elements, and polarizations to enhance separate color ranges and viewable definition through the lens. This high-definition finishing is frequently used with greater density glass which reduces light’s opportunity to refract through the lens glass. Some scope brands use “HD” to refer to “ED” suggesting extra-low dispersion glass. ED handles how certain colors are presented on the chromatic spectrum and the chromatic aberration or deviance which is also called color distortion or fringing. Chromatic aberration may be obvious over things with hard edges and shapes as light hits the item from certain angles.
Single Optic Lens Coating Versus Multi-Coating
Various optic lenses can also have different coatings applied to them. All lenses generally have at least some type of treatment or finish used to them prior to being used in a rifle scope or optic.
This lens treatment can protect the lens from scratches while reducing 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 on the scope producer and how much you paid for it.
Some scope producers similarly make it a point to specify if their optic lenses are layered or “multi” covered. Being “better” depends on the manufacturer’s lens treatment technology and the quality of materials used in building the rifle scope.
Details on Hydrophobic Finish
Water on a lens does not help with maintaining a clear sight picture through a scope at all. Lots of top of the line and high-end scope makers will coat their lenses with a hydrophobic or hydrophilic finishing.
Optic Installation Alternatives
Mounting solutions for scopes can be found in a few options. There are the basic scope rings which are individually mounted to the optic and one-piece mounts which cradle the scope. These various types of mounts also typically are made in quick release versions which use throw levers which allow rifle operators to quickly install and remove the optics.
Hex Key Rifle Optic Rings
Normal, 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 are created for long range accuracy shooting. This type of scope install is fine for rifles which need a long lasting, sound mounting solution which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Scope Rings
These types of quick-release rifle scope mounts can be used to rapidly take off a scope and attach it to a different rifle. Several scopes can even be switched out if they all use a compatible style mount. These types of mounts are handy for rifles which are transported a lot, to swap out the optic from the rifle for protecting the scope, or for scopes which are used between multiple rifles.
Rifle Optic Tube Sealing and Gas Purging
Wetness inside your rifle optic can spoil a day of shooting and your costly optic by triggering fogging and making residue within the scope’s tube. The majority of scopes prevent moisture from getting in the scope tube with a system of sealing O-rings which are water resistant. Generally, these water resistant scopes can be immersed under 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be sufficient wetness avoidance for basic use rifles for hunting and sporting purposes, unless you anticipate taking your rifle sailing and are worried about the scope still working if it is submerged in water and you can still retrieve the gun.
Info on Rifle Glass Tube Gas Purging
Another element of avoiding the accumulation of wetness within the rifle scope’s tube is filling the tube with a gas like nitrogen. Given that this space is currently taken up by the gas, the scope is less influenced by temperature shifts and pressure distinctions from the outside environment which may possibly allow water vapor to leak in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a decent rifle scope to look for.