Description
Rifle Scope Base Product Details
Leupold Dual Dovetail Scope Base
Rifle Scope Base Product Features
Model #57286 – Dual Dovetail Base Winchester 70 with a Silver finish
Accept all Leupold rotary dovetail rings
Provides a classic low-profile mount
Forged and machined steel construction
About the Leupold Brand
Leupold is a premium company for rifle scopes, optics, mounts, and other components used for guns like rifles and long guns. They style and build their scopes and related products working with building materials which are long lasting and resilient. This includes the Leupold Dual Dovetail Scope Base by Leupold. For more shooting goods, visit their website.
About Rifle Glass
Rifle scopes permit you to precisely aim a rifle at various targets by aligning your eye with the target at range. They do this through magnifying the target by using a series of lenses within the scope. The scope’s positioning can be adjusted for consideration of numerous environmental elements like wind and elevation decreases to account for bullet drop.
The scope’s purpose is to understand exactly where the bullet will land based upon the sight picture you are viewing with the scope as you align the scope’s crosshair or reticle with the target. A lot of contemporary rifle scopes have about eleven parts which are arranged within and on the exterior of the scope body. These scope parts consist of the rifle scope’s body, lenses, windage turrets or dials, focus rings, and other parts. Learn about the eleven parts of glass.
Rifle Glass Types
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The kind of focal plane an optic has determines where the reticle or crosshair lies in relation to the scopes magnification. It actually implies the reticle is located behind or in front of the magnifying lens of the optic. Choosing the most beneficial type of rifle glass is dependent on what style of hunting or shooting you intend on undertaking.
Info on First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. This triggers the reticle to increase in size based upon the amount of magnification being used. The result is that the reticle measurements are the same at the amplified distance as they are at the non amplified distance. As an example, 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, long distance kinds of shooting
- Shooting scenarios where estimations are small
- Experienced shooters who understand their aim point “hold over” plus “lead” correlations for their long gun
- Shooters who do not mind the reticle is bigger and takes up more visual eyesight space than a SFP reticle
Info About Second Focal Plane Glass
Second focal plane optics (SFP) feature the reticle behind the magnification 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 kinds of shooting where shooters have extra time to make ballistic estimations
- Shooting where most of the shots take place within shorter distances and ranges
- Shooters who desire a clearer optic picture without space used up by the enlarged FFP reticle
Glass Zoom
The amount of magnification a scope offers is identified by the diameter, density, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Fixed Power Lens Rifle Optic Facts
A single power rifle optic uses 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 optic can not fluctuate because it is fixed.
Variable Power Lens Glass
Variable power rifle scopes use enhanced power. The power modification is accomplished by making use of the power ring part of the scope near the back of the scope by the eye bell.
Power Levels and Range
Here are some advised scope power levels and the distances where they may be successfully used. Consider that higher magnification optics will not be as efficient as lower powered scopes because increased zoom can be a bad thing. The exact same concept applies to extended distances where the shooter needs enough power to see where to best aim the rifle at the target.
Lens Finishing for Glass
All modern-day rifle scope lenses are coated. There are different types and qualities of glass finishes. Lens finish is an important aspect of a rifle when thinking about high-end rifle optics and targeting equipment. The glass lenses are one of the most crucial parts of the glass because they are what your eye looks through while sighting a rifle in on the target. The finish on the lenses safeguards the lens surface as well as assists with anti glare capabilities from excess direct sunlight and color presence.
About Optic Lens Coatings – HD Versus ED
Some scope producers also use “HD” or high-definition lens finishings which use various processes, polarizations, elements, and chemicals to draw out a wide range of colors and viewable definition through the lens. Some scope makers use “HD” to refer to “ED” meaning extra-low dispersion glass.
Single Rifle Optic Lens Coating Versus Multi-Coating
Different optic lenses can likewise have various coverings used to them. All lenses typically have at least some type of treatment or covering used to them prior to being used in a rifle scope or optic.
This lens treatment can protect the lens from scratches while decreasing glare and other less helpful 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 manufacturers likewise make it a point to define if their optic lenses are layered or “multi” covered. This indicates the lens has several treatments applied to the surfaces of the glass. If a lens gets multiple treatments, it can indicate that a producer is taking several actions to fight various environmental aspects like an anti-glare covering, a scratch resistant anti-abrasion finish, followed by a hydrophilic finish. This also doesn’t necessarily suggest the multi-coated lens will perform much better than a single coated lens. Being “much better” hinges on the manufacturer’s lens treatment techniques and the quality of products used in building the rifle optic.
About Hydrophobic Covering
Water on a lens doesn’t assist with keeping a clear sight picture through a scope at all. Numerous top of the line and high-end optic makers will coat their lenses with a hydrophobic or hydrophilic covering.
Rifle Glass Installing Alternatives
Installing solutions for scopes come 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 different kinds of mounts also generally come in quick release versions which use throw levers which allow rifle shooters to quickly install and dismount the scope.
Hex Key Rifle Optic Rings
Basic, clamp-on style mounting optic rings use hex head screws to fix to the flattop style Picatinny scope mounting rails on rifles. These styles of scope mounts use two detached rings to support the optic, and are made from 7075 T6 billet aluminum which are created for long distance accuracy shooting. This kind of scope mount is very good for rifles which need to have a resilient, unfailing mount which will not change despite just how much the scope is moved or abuse the rifle takes. These are the type of mounts you want for a faithful optics system on a long distance scouting or hard target interdiction long gun that will seldom need to be changed or recalibrated. Blue 242 Loctite threadlocker can also be used on screws to keep the hex screws from wiggling out after they are installed securely in position. An example of these mounting rings are the 30mm type made by the Vortex Optics brand. The set normally costs around $200 USD
Quick-Release Cantilever Rifle Glass Ring Mounts
These types of quick-release rifle scope mounts can be used to quickly remove a scope and connect it to a different rifle. Multiple scopes can even be swapped out if they all use a compatible design mount. These types of mounts are convenient for long guns which are carried a lot, to swap out the optic from the rifle for protection, or for optics which are used in between multiple rifles.
Info on Rifle Glass Tube Sealing and Gas Purging
Wetness inside your rifle optic can ruin a day on the range and your costly optic by resulting in fogging and producing residue within the scope’s tube. A lot of scopes protect against humidity from entering the scope tube with a system of sealing O-rings which are waterproof. Typically, these water-resistant scopes can be submerged beneath 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be ample moisture content avoidance for conventional use rifles for hunting and sporting purposes, unless you intend on taking your rifle aboard a watercraft and are worried about the scope still performing if it goes overboard and you can still recover the firearm.
Rifle Glass Gas Purging
Another element of preventing the accumulation of moisture inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Since this space is currently taken up by the gas, the scope is less affected by climate changes and pressure differences from the outdoor environment which may potentially allow water vapor to leak in around the seals to fill the void which would otherwise be there. These are good qualities of a good rifle scope to look for.
