Last update on August 16, 2022 // Source: Amazon API
Rifle Scope Product Details
Schmidt Bender Zenith 2.5-10×56 A7 Rifle Scope
Schmidt Bender Zenith 2.5-10×56 A7 Rifle Scope
Rifle Scope Product Features
Schmidt Bender Classic 8×56 A7 1′ alloy tube
About the Schmidt & Bender Company
Schmidt & Bender is a premium supplier for long gun scopes, optics, mounts, and other accessories used for guns like rifles and long guns. They style and build their scopes and related products choosing building materials which are durable and long lasting. This includes the Schmidt Bender Zenith 2.5-10×56 A7 Rifle Scope by Schmidt & Bender. For more shooting products, visit their site.
Rifle scopes permit you to precisely aim a rifle at different targets by aligning your eye with the target at range. They accomplish this through zoom using a set of lenses within the scope. The scope’s alignment can be adjusted for the consideration of many environmental things like wind and elevation increases or decreases to account for bullet drop.
The scope’s purpose is to help shooters understand precisely where the bullet will hit based upon the sight picture you are viewing through the scope as you align the scope’s crosshair or reticle with the intended point of impact. The majority of modern-day rifle optics have around eleven parts which are found inside and outside of the scope. These scope parts consist of the rifle scope’s body, lenses, modification turrets, focus rings, and other elements. See all eleven parts of an optic.
Rifle Scope Styles
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The form of focal plane an optic has identifies where the reticle or crosshair lies in relation to the scopes magnifying adjustments. It literally suggests the reticle is situated behind or ahead of the magnifying lens of the optic. Selecting the most effective kind of rifle optic is based on what style of shooting or hunting you anticipate doing.
First Focal Plane Optics
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. This triggers the reticle to increase in size based upon the extent of magnification being used. The result is that the reticle measurements are the same at the amplified range as they are at the non magnified range. One tick on a mil-dot reticle at one hundred yards without “zoom” is still the exact same tick at 100 yards with 5x “zoom”. These kinds of scopes work for:
- Quick acquisition, far away kinds of shooting
- Shooting circumstances where computations are low
- Experienced shooters who know their target “hold over” and also “lead” correlations for their weapon
- Shooters who don’t mind the reticle is enlarged and requires more visual eyesight space than a SFP reticle
Second Focal Plane Optics
Second focal plane optics (SFP) feature the reticle behind the zoom lens. This causes the reticle to stay at the same scale in connection with the amount of zoom being used. The result is that the reticle measurements change based upon the zoom chosen to shoot over greater ranges because the markings represent various increments which can vary with the magnification. In the FFP illustration with the SFP glass, the 5x “zoom” one hundred yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement. These particular varieties of glass work for:
- Long distance types of shooting where shooters have additional time to make ballistic calculations
- Shooting where most shots take place within shorter ranges and spaces
- Shooters who select a clearer optic sight picture with less space taken up by the larger size FFP reticle
The amount of zoom a scope provides is determined by the diameter, thickness, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Fixed Power Lens Optics
A single power rifle scope and optic will have 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 zoom of this kind of scope can not fluctuate considering that it is a fixed power optic.
Variable Power Lens Scopes
Variable power rifle scopes use variable power levels. The power adjustment is accomplished by using the power ring part of the scope near the back of the scope by the eye bell.
Optic Power Level and Range Correlation
Here are some recommended scope powers and the distances where they may be efficiently used. Consider that higher power scopes and optics will not be as practical as lower powered glass because too much magnification can be a bad thing. The same applies to longer ranges where the shooter needs enough power to see precisely where to best aim the rifle at the target.
Details on Glass Lens Finishes
All modern-day rifle optic and scope lenses are layered. Lens coating can be an important element of a rifle system when looking into high end rifle optics and scope setups.
HD Versus ED Lens Coatings
Some scope makers likewise use “HD” or high-definition lens finishes which use different techniques, polarizations, chemicals, and elements 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.
About Single Finish Versus Multi-Coating
Various optic lenses can even have various finishes applied to them. All lenses typically have at least some type of treatment or covering applied to them before they are used in a rifle scope or optic. Because the lens isn’t simply a raw piece of glass, they require performance enhancing coatings. It becomes part of the carefully tuned optic. It requires a coating to be applied to it so that the lens will be efficiently usable in many types of environments, degrees of sunlight (full light VS shaded), and other shooting conditions.
Single coated lenses have a treatment applied to them which is generally a protective and boosting multi-purpose treatment. This lens treatment can shield the lens from scratches while lowering glare and other less beneficial things experienced in the shooting environment while sighting in with the optic. The quality of a single coated lens depends upon the scope company and just how much you spent on it. Both the make and cost are indications of the lens quality.
Some scope producers similarly make it a point to define if their optic lenses are covered or “multi” covered. Being “much better” depends on the maker’s lens treatment technology and the quality of materials used in constructing the rifle scope.
Info on Hydrophobic Finish
Water on a lens does not help with preserving a clear sight picture through a scope at all. Many top of the line and high-end scope makers will coat their lenses with a hydrophobic or hydrophilic covering.
Rifle Glass Mounting Options
Installing approaches for scopes come in a few choices. There are the standard scope rings which are separately mounted to the scope and one-piece mounts which cradle the scope. These different types of mounts also usually come in quick release variations which use toss levers which allow rifle shooters to rapidly install and dismount the optics.
Hex Key Glass Rings
Basic, clamp style mounting optic rings use hex head screws to position to the flattop style Picatinny scope mount rails on rifles. These kinds of scope mounts use two detached rings to support the scope, and are made from 7075 T6 billet aluminum which are made for far away precision shooting. This kind of scope mount is good for rifles which are in need of a long lasting, hard use mount which will not shift no matter how much the scope is moved about or abuse the rifle takes. These are the style of mounts you should have for a devoted optics setup on a long distance hunting or interdiction long gun that will hardly ever need to be modified or recalibrated. Blue 242 Loctite threadlocker can also be used on the mount’s screws to keep the hex screw threads from wiggling out after they are installed safely in place. An example of these mounting rings are the 30mm type from the Vortex Optics company. The set usually costs around $200 USD
Quick-Release Cantilever Glass Rings
These types of quick-release rifle scope mounts can be used to rapidly attach and take off a scope from a rifle. Multiple scopes can also be switched out if they all use a complementary style mount. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten firmly to a flat top design Picatinny rail. This lets the scope to be sighted in while on the rifle, removed from the rifle, and remounted while preserving accuracy. These kinds of mounts come in practical for shooting platforms which are moved a lot, to take off the glass from the rifle for protection, or for optics which are used in between numerous rifles. An example of this mount type is the 30mm mount from Vortex Optics. It generally costs around $250 USD
Sealing and Gas Purging for Rifle Scope Tubes
Moisture inside your rifle optic can mess up a day of shooting and your costly optic by bringing about fogging and developing residue inside of the scope tube. Most scopes avoid moisture from getting in the scope tube with a system of sealing O-rings which are waterproof.
Details on Rifle Optic Tube Gas Purging
Another part of preventing the accumulation of wetness within the rifle optic tube is filling the tube with a gas like nitrogen. Since this space is currently occupied by the gas, the glass is less impacted by temperature alterations and pressure distinctions from the outdoor environment which could possibly enable 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.