Description
Rifle Scope Product Details
TASCO 4-12×40 Black FC, Rings, Truplex, Box 5L
No frills! New Tesco riflescopes continue the legacy of accurate optics with fully coated lenses and rings included.
Rifle Scope Product Features
Fully coated lenses allow the finest details to be visible
Finger tip adjustable capped turrets for easy in-field, no tool required adjustments
Weaver style rings included for quick mounting experience
Aggressive new design provides superior grip and classy look to adorn any rifle
Waterproof, Fog proof and shockproof scopes will survive the elements
About the TASCO Manufacturer
TASCO is a premium company for long gun scopes, optics, mounts, and other accessories used for guns like rifles and long guns. They design and make their scopes and related products by applying elements which are durable and long lasting. This includes the TASCO 4-12×40 Black FC, Rings, Truplex, Box 5L by TASCO. For more shooting items, visit their site.
Information About Glass
Rifle scopes permit you to precisely align a rifle at different targets by lining up your eye with the target at range. They do this through magnifying the target by making use of a series of lenses within the scope. The scope’s positioning can be adjusted to take into account numerous environmental things like wind speed and elevation increases to account for bullet drop.
The scope’s purpose is to help the shooter understand precisely where the bullet will hit based upon the sight picture you are seeing through the scope as you line up the scope’s crosshair or reticle with the intended point of impact. Most modern rifle scopes have around eleven parts which are found within and externally on the optic. These optic pieces consist of the rifle scope’s body, lenses, elevation turrets or dials, objective focus rings, and other elements. See all eleven parts of a rifle optical system.
About Scope Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The style of focal plane a scope has determines where the reticle or crosshair lies in regard to the scopes zoom. It literally indicates the reticle is located behind or in front of the magnification lens of the scope. Picking out the most effective form of rifle scope depends upon what variety of shooting you plan on undertaking.
Info About First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. These types of scopes are helpful for:
- Quick acquisition, long distance types of shooting
- Shooting circumstances where calculations are small
- Experienced shooters who understand their aim point “hold over” and “lead” relationships for their long gun
- Shooters who don’t mind the reticle is enlarged and occupies more visual eyesight space than a SFP reticle
Second Focal Plane Glass
Second focal plane optics (SFP) feature the reticle to the rear of the magnification lens. This induces the reticle to stay at the same overall size in relation to the quantity of magnification being used. The outcome is that the reticle dimensions adjust based upon the magnification chosen to shoot over lengthier distances given that the markings represent various increments which differ with the zoom. In the FFP example with the SFP glass, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick. These particular kinds of optics are useful for:
- Far away styles of shooting where shooters have increased time to make ballistic estimations
- Shooting where most of the shots take place within shorter ranges and proximities
- Shooters who would like a clearer optic picture with less area taken up by the bigger FFP reticle
Zoom for Rifle Scopes
The measure of scope magnification you need depends upon the sort of shooting you wish to do. Practically every kind of rifle optic supplies some level of magnification. The quantity of zoom a scope gives is identified by the dimension, thickness, and curves of the lens glass within the rifle optic. The magnifying level of the optic is the “power” of the glass. This signifies what the shooter is aiming at through the scope is magnified times the power element of what can normally be seen by human eyes.
Info About Fixed Single Power Lens Rifle Scopes
A single power rifle optic comes with a zoom number designator like 4×32. This implies the zoom 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 a fixed power optic.
Variable Power Lens Rifle Scopes
Variable power rifle scopes can be tweaked between magnified settings. The power adjustment is achieved by making use of the power ring part of the scope near the back of the scope by the eye bell.
The Power Level and Range Correlation of Rifle Glass
Here are some suggested scope power settings and the ranges where they can be successfully used. High power glass will not be as useful as lower magnification rifle scope glass since too much zoom can be a bad thing. The same idea applies to extended ranges where the shooter needs to have adequate power to see where to properly aim the rifle.
Rifle Scope Lens Finishing
All contemporary rifle optic and scope lenses are layered. There are various types and qualities of glass coatings. Lens coating is an important aspect of a rifle’s setup when thinking of high-end rifle optics and scope units. The lenses are one of the most vital pieces of the optic since 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 area as well as improves anti glare capabilities from refracted sunlight and color recognition.
Info on Lens Coatings – HD Versus ED
Some scope producers also use “HD” or high-definition lens coatings that use various processes, rare earth compounds, components, and polarizations to extract numerous colors and viewable target definition through the lens. This high-definition finishing is normally used with greater density glass which drops light’s ability to refract through the lens glass. Some scope corporations use “HD” to describe “ED” suggesting extra-low dispersion glass. ED deals with how colors are presented on the chromatic spectrum and the chromatic aberration which is similarly called color distortion or fringing. Chromatic aberration can be noticeable around objects with well defined outlines as light hits the object from specific angles.
Optic Lens Single Coating Versus Multi-Coating
Various optic lenses can also have various finishings used to them. All lenses generally have at least some type of treatment or coating used to them before they are used in a rifle scope or optic.
This lens treatment can protect the lens from scratches while lowering glare and other less helpful things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends on the scope maker and how much you paid for it.
Some scope producers also make it a point to define if their optic lenses are covered or “multi” coated. This indicates the lens has multiple treatments applied to the surfaces of the glass. If a lens gets several treatments, it can prove that a company is taking several actions to combat different environmental elements like an anti-glare finish, a scratch resistant anti-abrasion finish, followed by a hydrophilic coating. This additionally doesn’t necessarily suggest the multi-coated lens will perform better than a single layered lens. Being “much better” depends upon the maker’s lens treatment techniques and the quality of products used in creating the rifle glass.
Hydrophobic Scope Lens Finishing
Water on a lens doesn’t help with keeping a clear sight picture through a scope at all. Lots of top of the line and military grade scope makers will coat their lenses with a hydrophilic or hydrophobic finish.
Rifle Scope Installing Alternatives
Installing solutions for scopes are available in a couple of choices. There are the standard scope rings which are individually installed to the optic and one-piece scope mounts which cradle the scope. These various kinds of mounts also usually come in quick release versions which use throw levers which permit rifle operators to rapidly mount and remove the scopes.
Hex Key Optic Rings
Standard, clamp-on style mounting optic rings use hex head screws to fix to the flattop style Picatinny scope mount rails on rifles. These kinds of scope mounts use a pair of individual rings to support the scope, and are normally constructed from 7075 T6 billet aluminum which are designed for far away precision shooting. This form of scope mount is very good for rifles which need to have a resilient, rock solid mount which will not shift no matter just how much the scope is moved or abuse the rifle takes. These are the style of mounts you want for a devoted scope system on a far away hunting or interdiction rifle that will pretty much never need to be altered or recalibrated. Blue 242 Loctite threadlocker can additionally be used on the mount’s screws to prevent the hex screw threads from backing out after they are installed securely in position. An example of these rings are the 30mm style made by the Vortex Optics company. The set generally costs around $200 USD
Rifle Optic Mounts with Quick-Release Cantilever Rings
These kinds of quick-release rifle scope mounts can be used to quickly attach and take off a scope from a rifle. Multiple scopes can also be switched out if they all use a similar style mount. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers fasten tightly 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 back on the rifle while keeping accuracy. These types of mounts are useful and handy for rifles which are carried a lot, to remove the scope glass from the rifle for protection, or for optics which are used between a number of rifles. An example of this mount style is the 30mm mount from the Vortex Optics brand. It generally costs around $250 USD
Sealing and Gas Purging for Rifle Glass Tubes
Moisture inside your rifle optic can ruin a day of shooting and your pricey optic by causing fogging and developing residue inside of the scope tube. The majority of scopes prevent wetness from getting in the scope tube with a system of sealing O-rings which are water resistant.
Details on Rifle Glass Tube Gas Purging
Another part of avoiding the buildup of moisture inside of the rifle scope tube is filling the tube with a gas like nitrogen. Given that this space is already occupied by the gas, the scope is less impacted by climate shifts and pressure differences from the outside environment which could potentially permit water vapor to seep 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.
