Description
Last update on June 4, 2023 // Source: Amazon API
Rifle Scope Product Details
TRUGLO 4″ x 32″ Compact Scope for Rimfire
TG8504BR Features: -Compact scope. -Reticle: Duplex. -Finish: Non reflective matte black. -One piece tube made of aircraft quality aluminum. -Waterproof and fog-proof. -Fully coated lenses provide maximum brightness, clarity and contrast. -Rubber eye guard. -Nitrogen gas filled. -Scratch resistant. -Durable leaf spring for wind age and elevation adjustments. -Includes: 0.375″ rings for 22 and air rifles. -Overall dimensions: 2.25″ H x 10.5″ W x 8″ D.
Rifle Scope Product Features
Rifle Scope: 4X
About the TRUGLO Company
TRUGLO is a premium supplier for weapon scopes, optics, mounts, and other add-ons used for firearms like rifles and long guns. They create and build their scopes, mounts, and related products by making the most of materials which are long lasting and durable. This includes the TRUGLO 4″ x 32″ Compact Scope for Rimfire by TRUGLO. For additional shooting items, visit their site.
Info Rifle Scopes
Rifle scopes enable you to precisely aim a rifle at different targets by lining up your eye with the target at range. They do this through magnification by utilizing a set of lenses inside the scope. The scope’s positioning can be adapted to take into account various environmental aspects like wind speed and elevation increases or decreases to account for bullet drop.
The scope’s purpose is to understand precisely where the bullet will hit based on the sight picture you are viewing using the scope as you align the scope’s crosshair or reticle with the intended point of impact. Most modern-day rifle scopes have about 11 parts which are arranged inside and outside of the scope. These parts include the rifle scope’s body, lenses, windage turrets or dials, focus rings, and other elements. Learn about the eleven parts of scopes.
About Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Opting for the best type of rifle scope depends on what type of shooting you plan on doing.
About First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. This causes 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 magnified range as they are at the non amplified range. For instance, one tick on a mil-dot reticle at one hundred yards without having “zoom” is still the corresponding tick at 100 yards using 5x “zoom”. These types of scopes work for:
- Quick acquisition, far away kinds of shooting
- Shooting situations where calculations are very little
- Experienced shooters who have an idea for their aim point “hold over” and also “lead” correlations for their firearms
- Shooters who do not mind the reticle is enlarged and uses up more visual eyesight space than a SFP reticle
Info on Second Focal Plane Optics
Second focal plane optics (SFP) include the reticle to the rear of the zoom lens. This triggers the reticle to stay at the same overall size in relation to the level of magnification being used. The end result is that the reticle dimensions evolve based on the magnification chosen to shoot over longer distances considering that the reticle markings represent different increments which vary with the zoom. In the FFP illustration with the SFP scope, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick reticle measurement. These particular types of glass are beneficial for:
- Far away styles of shooting where shooters have additional time to make ballistic computations
- Shooting where most of the shots happen within much shorter proximities and ranges
- Shooters who want a clearer optic picture without area taken up by the larger size FFP reticle
Magnification for Glass
The amount of magnification a scope provides is determined by the diameter, thickness, and curvatures of the lenses inside of the rifle scope. The zoom of the scope is the “power” of the scope.
About Fixed Single Power Lens Optics
A single power rifle scope will have 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 considering that it is a fixed power optic.
Info About Variable Power Lens Rifle Scopes
Variable power rifle scopes can be modified between magnified settings. The power adjustment is achieved by the power ring part of the scope near the back of the scope by the eye bell.
Optic Power and Ranges
Here are some recommended scope power levels and the distances where they can be effectively used. Highly magnified scopes will not be as effective as lower powered glass because too much zoom can be a bad thing. The same concept relates to extended ranges where the shooter needs to have sufficient power to see where to properly aim the rifle.
Info on Glass Lens Coating
All present day rifle optic and scope lenses are layered. Lens coating can be an important aspect of a shooting platform when thinking about high end rifle optics and scope systems.
HD Versus ED Rifle Scope Lens Coatings
Some scope companies also use “HD” or high-definition lense finishes that use various procedures, rare earth compounds, aspects, and polarizations to enhance numerous color ranges and viewable definition through lenses. This high-definition coating is often used with increased density glass which drops light’s ability to refract through the lens glass. Some scope suppliers use “HD” to describe “ED” meaning extra-low dispersion glass. ED handles how colors are presented on the chroma spectrum and the chromatic deviance or aberration which is similarly called color distortion or fringing. Chromatic aberration is often visible over objects with hard outlines as light hits the object from particular angles.
Single Finish Versus Multi-Coating
Various scope lenses can also have different coatings applied to them. All lenses typically have at least some type of treatment or covering applied to them prior to being used in a rifle scope or optic. Since the lens isn’t simply a raw piece of glass, they require performance enhancing coatings. It becomes part of the finely tuned optic. It must have a finishing put on it so that the lens will be optimally usable in lots of types of environments, degrees of sunlight (full VS shade), and other shooting conditions.
This lens treatment can protect the lens from scratches while lowering 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 manufacturer and how much you paid for it.
Some scope manufacturers likewise make it a point to specify if their optic lenses are covered or “multi” coated. This means the lens has had multiple treatments applied to the surfaces of the glass. If a lens gets several treatments, it can prove that a producer is taking multiple steps to fight different environmental aspects like an anti-glare finish, a scratch resistant anti-abrasion covering, followed by a hydrophilic coating. This also does not necessarily suggest the multi-coated lens will perform much better than a single layered lens. Being “better” depends on the producer’s lens treatment innovation and the quality of materials used in building the rifle glass.
Hydrophobic Rifle Optic Lens Coating
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 coating.
Rifle Glass Mounting Alternatives
Installing solutions for scopes come in a few choices. There are the standard scope rings which are individually mounted to the optic and one-piece scope mounts which cradle the scope. These various kinds of mounts also normally come in quick release variations which use toss levers which permit rifle shooters to rapidly install and dismount the scope.
Hex Key Optic Ring Mounting Solutions
Normal, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope installation rails on rifles. These types of scope mounts use two different rings to support the optic, and are made from 7075 T6 billet aluminum which are developed for long distance precision shooting. This type of scope install is fine for rifles which require a durable, sound mount which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Rifle Glass Ring Mounts
These kinds of quick-release rifle scope mounts can be used to quickly detach a scope from a rifle and reattach it to a different rifle. If they all use a comparable design mount, a number of scopes can often be swapped out on the range. The quick detach design is CNC crafted from anodized 6061 T6 aluminum and the mounting levers connect tightly to a flat top style Picatinny rail. This enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while retaining accuracy. These kinds of mounts are useful and practical for shooting platforms which are transported a lot, to remove the optic from the rifle for protection, or for sight systems which are employed between several rifles. An example of this mount style is the 30mm mount designed by Vortex Optics. It generally costs around $250 USD
Info on Rifle Glass Tube Sealing and Gas Purging
Moisture inside your rifle optic can mess up a day of shooting and your pricey optic by causing fogging and producing residue inside of the scope tube. A lot of scopes avoid moisture from going into the scope tube with a system of sealing O-rings which are water resistant.
Gas Purged Optic Tubes
Another component of avoiding the accumulation of wetness within the rifle scope tube is filling the tube with a gas like nitrogen. Considering that this area is already occupied by the gas, the glass is less altered by temperature level changes and pressure differences from the outdoor environment which might 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 seek out.
