Description
Rifle Scope Product Details
Schmidt Bender 3-27×56 PM II 669-911-842-D1-B4
Schmidt Bender 3-27×56 PM II 669-911-842-D1-B4
Rifle Scope Product Features
About the Schmidt & Bender Brand
Schmidt & Bender is a premium manufacturer for rifle scopes, optics, mounting solutions, and other add-ons used for firearms like rifles and long guns. They style and manufacture their scopes, mounts, and related products choosing building materials which are long lasting and durable. This includes the Schmidt Bender 3-27×56 PM II 669-911-842-D1-B4 by Schmidt & Bender. For additional shooting items, visit their website.
What You Need to Know About Glass
Rifle scopes permit you to precisely align a rifle at various targets by lining up your eye with the target at range. They do this through zoom by employing a set of lenses within the scope. The scope’s positioning can be dialed in for consideration of various environmental aspects like wind and elevation decreases to account for bullet drop.
The scope’s function is to help the shooter understand exactly where the bullet will land based on the sight picture you are viewing through the optic as you align the scope’s crosshair or reticle with the intended target. Many modern-day rifle optics have about 11 parts which are found internally and externally on the scope. These optic pieces include the rifle scope’s body, lenses, windage and elevation turrets or dials, focus rings, and other elements. Learn about the eleven parts of rifle glass.
Rifle Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The style of focal plane an optic has identifies where the reticle or crosshair lies in connection with the optic’s zoom. It simply indicates the reticle is located behind or before the magnifying lens of the optic. Deciding on the most ideal kind of rifle scope is based upon what style of hunting or shooting you anticipate undertaking.
First Focal Plane Optics
First focal plane scopes (FFP) come with the reticle before the magnifying lens. This induces the reticle to increase in size based on the amount of magnification being used. The benefit is that the reticle measurements are the same at the enhanced range as they are at the non magnified range. One tick on a mil-dot reticle at 100 yards with no “zoom” is still the exact same tick at 100 yards with 5x “zoom”. These types of scopes are beneficial for:
- Quick acquisition, far away kinds of shooting
- Shooting circumstances where computations are marginal
- Experienced shooters who recognize their aim point “hold over” plus “lead” relationships for their firearms
- Shooters who don’t mind the reticle is enlarged and takes up more visual eyesight area than a SFP reticle
Info About Second Focal Plane Optics
Second focal plane optics (SFP) come with the reticle behind the magnification lens. This causes the reticle to remain at the same size in connection with the amount of magnification being used. The effect is that the reticle measurements adjust based upon the zoom chosen to shoot over lengthier distances considering that the reticle markings present various increments which fluctuate with the zoom level. In the FFP example with the SFP optic, the 5x “zoom” one hundred yard tick measurement would be 1/5th of the non “zoom” tick reticle measurement. These particular sorts of scopes work for:
- Long distance styles of shooting where shooters have more time to make ballistic computations
- Shooting where most shots occur within much shorter spaces and ranges
- Shooters who want a clearer optic sight picture with less area used up by the bigger FFP reticle
Ins and Outs of Glass Zoom
The extent of scope zoom you need on your optic is based on the type of shooting you plan to do. Nearly every style of rifle scope provides some level of zoom. The quantity of zoom a scope gives is established by the diameter, density, and curves of the lenses inside of the rifle optic. The magnification level of the optic is the “power” of the opic. This implies what the shooter is looking at through the scope is amplified times the power element of what can normally be seen by human eyes.
Fixed Single Power Lens Optics
A single power rifle scope or optic comes with a magnification number designator like 4×32. This means the zoom power of the scope is 4x power while the objective lens is 32mm. The zoom of this type of scope can not fluctuate because it is a fixed power optic.
Variable Power Lens Rifle Scopes
Variable power rifle scopes use variable power levels. The power adjustment is achieved using the power ring part of the scope near the rear of the scope by the eye bell.
Glass Power and Range Correlation
Here are some recommended scope powers and the distances where they may be efficiently used. Consider that high power optics and scopes will not be as effective as lower magnification level optics and scopes since increased zoom can be a bad thing. The same concept goes for longer distances where the shooter needs adequate power to see where to properly aim the rifle at the target.
Lens Covering for Rifle Glass
All modern-day rifle optic and scope lenses are layered. There are different types and qualities of glass lens coverings. Lens coating is an essential element of a rifle when contemplating high end rifle optics and targeting equipment. The glass lenses are among the most crucial parts of the scope due to the fact that they are what your eye sees through while sighting a rifle in on the point of impact. The coating on the lenses offers protection to the lens surface and improves anti glare from refracted light and color exposure.
HD Versus ED Lens Coatings
Some scope manufacturers also use “HD” or high-definition lens coatings which use various techniques, polarizations, aspects, and chemicals to draw out separate colors and viewable quality through the lens. Some scope manufacturers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Single Finishing Versus Multi-Coating for Scopes
Different optic lenses can even have different finishes applied to them. All lenses generally have at least some type of treatment or covering applied to them prior to being used in a rifle scope or optic assembly. This is because the lens isn’t just a raw piece of glass. It becomes part of the carefully tuned optic. It requires a coating to be applied to it so that the lens will be efficiently functional in numerous types of environments, degrees of light (full VS shaded), and other shooting conditions.
This lens treatment can safeguard 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 manufacturers similarly make it a point to specify if their optic lenses are coated or “multi” covered. Being “much better” depends on the maker’s lens treatment technology and the quality of products used in constructing the rifle scope.
What to Know About Hydrophobic Covering
Water on a lens does not help with keeping 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 hydrophobic or hydrophilic finishing.
Alternatives for Mounting Rifle Glass on Long Guns
Installing approaches for scopes can be found in a couple of options. There are the basic scope rings which are individually installed to the optic and one-piece mounts which cradle the scope. These various kinds of mounts also normally can be found in quick release variations which use toss levers which allow rifle shooters to quickly install and remove the scope.
Hex Key Scope Ring Mounting Solutions
Basic, clamp type mounting scope rings use hex head screws to fix to the flattop design Picatinny scope mounting rails on the tops of rifles. These varieties of scope mounts use double individual rings to support the optic, and are made from 7075 T6 billet aluminum or similar materials which are manufactured for long distance accuracy shooting. This kind of scope mount is great for rifles which need a durable, unfailing mount which will not change despite just how much the scope is moved or jarring the rifle takes. These are the type of mounts you should have for a devoted scope setup on a long distance hunting or interdiction firearm that will rarely need to be modified or recalibrated. Blue 242 Loctite threadlocker can additionally be used on screws to keep the hex screws from wiggling out after they are installed tightly in place. An example of these rings are the 30mm type made by Vortex Optics. The set typically costs around $200 USD
Rifle Optic Mounts with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly take off a scope and connect it to a different rifle. Several scopes can even be switched out if they all use a similar style mount. These types of mounts are handy for rifles which are transported a lot, to remove the optic from the rifle for protection, or for optics which are used in between several rifles.
Details on Optic Tube Sealing and Gas Purging
Wetness inside your rifle scope can mess up a day of shooting and your costly optic by bringing about fogging and developing residue inside of the scope tube. A lot of scopes prevent moisture from getting in the scope tube with a system of sealing O-rings which are waterproof.
Gas Purged Glass Tubes
Another element of avoiding the accumulation of wetness inside of the rifle optic tube is filling the tube with a gas like nitrogen. Given that this space is currently taken up by the gas, the optic is less altered by condition shifts and pressure distinctions from the outdoor environment which could potentially permit water vapor to permeate in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a decent rifle scope to look for.
