Description
Rifle Scope Product Details
Persei 2-7×42 Long Eye Relief Scope Rangefinder Reticle 30mm Tube Diameter Fits Mosin Nagant 1891/30 M39 with Mount Rings
Product specification:
MAGNIFICATION2X-7X
OBJECTIVE DIAMETER42mm
TUBE DIAMETER30mm
EYE RELIEF8.5″-10.5″
EXIT PUPIL21-6MM
Click Value W/E:1/4
FOV(FEET@100YDS)14-4.6
LENGTH11.25″
Weight: 14 oz.
1 x 2-7X42 Scout scope sight
1 x Cleaning Cloth
1 x pair scope rings
1 x SEE-THRU Protective Scope Rings
Material: Aircraft Grade Aluminum Alloy
Color: Anodized matte black.
Rifle Scope Product Features
Tactical rifle scope providing crystal clear targeting at 2X-7X magnification, with a 32mm objective diameter and an eye relief of 8.5 – 10.5 Inches.
Long eye relief 2-7×42 Hunting rifle scope fits Mosin Nagant 1891/30 M39 with Rangefinder Reticle with Weaver/Picatinny ring mounts.
Fully anodized matte black,superior aircraft grade aluminium body made from one piece,Excel durability and performance with high quality military grade precision.
Multi-coated lens with improved refractive and crystal clear view,filled with nitrogen,provide water-proof,fog-proof,dust-proof,scratch-resistant.
All weather adapted and optimal rifle scope for hunting,held zero for thousands of rounds.
About the Persei Brand
Persei is a premium maker for weapon scopes, optics, mounting solutions, and other accessories used for firearms like rifles and long guns. They design and make their scopes and related products making the most of materials which are long lasting and durable. This includes the Persei 2-7×42 Long Eye Relief Scope Rangefinder Reticle 30mm Tube Diameter Fits Mosin Nagant 1891/30 M39 with Mount Rings by Persei. For additional shooting products, visit their website.
Scope Info
Rifle scopes permit you to exactly align a rifle at different targets by lining up your eye with the target at range. They accomplish this through magnification by employing a set of lenses within the scope. The scope’s positioning can be adapted for consideration of various environmental elements like wind speed and elevation increases to make up for bullet drop.
The scope’s purpose is to help the shooter understand exactly where the bullet will land based upon the sight picture you are viewing through the scope as you align the scope’s crosshair or reticle with the target. Many modern rifle scopes have around 11 parts which are located internally and externally on the scope body. These scope parts consist of the rifle scope’s body, lenses, windage and elevation dials, objective focus rings, and other parts. Learn about the eleven parts of rifle scopes.
The Varieties of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Going for the finest type of rifle scope is based around what type of shooting you plan to do.
First Focal Plane Optics
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These styles of scopes are useful for:
- Quick acquisition, far away types of shooting
- Shooting circumstances where computations are low
- Experienced shooters who understand their aim point “hold over” and also “lead” equations for their long guns
- Shooters who do not mind the reticle is bigger and takes up more visual eyesight area than a SFP reticle
Second Focal Plane Optics
Second focal plane optics (SFP) feature the reticle to the rear of the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Long distance styles of shooting where shooters have more time to make ballistic estimations
- Shooting where most shots occur within much shorter spaces and ranges
- Shooters who choose a clearer optic picture without space taken up by the larger sized FFP reticle
Rifle Glass Zoom
The level of scope magnification you require depends upon the form of shooting you desire to do. Pretty much every kind of rifle scope gives some amount of zoom. The amount of magnification a scope offers is identified by the dimension, thickness, and curvatures of the lens glass inside of the rifle scope. The magnification level of the optic is the “power” of the scope. This suggests what the shooter is observing through the scope is magnified times the power element of what can normally be seen by human eyes.
Info on Single Power Lens Rifle Scopes
A single power rifle optic or scope comes with a magnification number designator like 4×32. This suggests the zoom power of the scope is 4x power and the objective lens is 32mm. The zoom of this kind of optic can not fluctuate given that it is a set power scope.
About Variable Power Lens Rifle Glass
Variable power rifle scopes can be adjusted between magnification increments. These types of scopes will note the zoom level in a format such as 2-10×32. These numbers imply the magnification of the scope can be adjusted in between 2x and 10x power. This additionally includes the power levels in-between 2 and 10. The power adaptation is achieved using the power ring component of the scope near the back of the scope by the eye bell.
Power and Range Correlations
Here are some suggested scope power settings and the distances where they may be efficiently used. Consider that high power optics will not be as practical as lower magnification level scope and optics due to the fact that too much magnification can be a bad thing. The very same idea goes for extended ranges where the shooter needs enough power to see where to best aim the rifle.
Details on Lens Finishes
All modern-day rifle optic lenses are covered in special coatings. There are different types and qualities of glass lens coatings. When shopping for high end rifle targeting systems, Lens finish can be a significant aspect of defining the capability of the rifle. The lenses are among the most essential parts of the optic given that they are what your eye sees through while sighting a rifle in on the point of impact. The finish on the lenses offers protection to the lens surface and assists with anti glare from excess daylight and color perception.
Details on Lens Coatings – HD Versus ED
Some rifle scope manufacturers additionally use “HD” or high-def lens coverings that apply various processes, aspects, polarizations, and chemicals to draw out separate color ranges and viewable definition through lenses. This HD finishing is commonly used with increased density glass which decreases light’s potential to refract through the lens glass. Some scope vendors use “HD” to describe “ED” signifying extra-low dispersion glass. ED handles how colors are represented on the chromatic spectrum and the chromatic aberration which is similarly called color distortion or fringing. Chromatic aberration is often noticeable over things with hard shapes as light hits the object from various angles.
Scope Lens Single Finishing Versus Multi-Coating
Various scope lenses can even have different coverings applied to them. All lenses usually have at least some type of treatment or finishing applied to them prior to being used in a rifle scope or optic assembly. This is because the lens isn’t simply a raw piece of glass. It is part of the carefully tuned optic. It needs to have a finishing applied to it so that it will be optimally usable in many types of environments, degrees of sunlight (full light VS shaded), and other shooting conditions.
This lens treatment can safeguard the lens from scratches while minimizing glare and other less beneficial things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends on the scope maker and how much you paid for it.
Some scope makers likewise make it a point to define if their optic lenses are covered or “multi” coated. This indicates the lens has had several treatments applied to them. If a lens receives numerous treatments, it can indicate that a maker is taking several steps to combat various environmental factors like an anti-glare finishing, a scratch resistant anti-abrasion coating, followed by a hydrophilic coating. This also doesn’t always suggest the multi-coated lens will perform much better than a single covered lens. Being “better” depends on the maker’s lens treatment solutions and the quality of components used in developing the rifle glass.
Glass Lens Anti-water Coating
Water on a lens does not help with retaining a clear sight picture through an optic whatsoever. Many top of the line and premium scope manufacturers will coat their lenses with a hydrophilic or hydrophobic covering. The Steiner Optics Nano-Protection is a fine example of this type of treatment. It provides protection for the exterior surfaces of the Steiner optic lens so the water molecules can not bind to it or create surface tension. The result is that the water beads sheet off of the scope to preserve a clear, water free sight picture.
Rifle Glass Installation Options
Mounting options for scopes can be found in a couple of choices. There are the basic scope rings which are separately installed to the optic and one-piece mounts which cradle the scope. These various kinds of mounts also typically are made in quick release variations which use manual levers which permit rifle shooters to quickly mount and remove the glass.
Optic Mounts with Hex Key Rings
Standard, clamp type mounting scope rings use hex head screws to position to the flattop style Picatinny scope mounting rails on rifles. These kinds of scope mounts use two detached rings to support the optic, and are made from 7075 T6 billet aluminum or similar materials which are created for long distance accuracy shooting. This form of scope mount is excellent for rifle systems which are in need of a long lasting, unfailing mount which will not shift no matter just how much the scope is moved or abuse the rifle takes. These are the design of mounts you want for a specialized optics system on a long distance scouting or tournament long gun that will pretty much never need to be changed or adjusted. Blue 242 Loctite threadlocker can also be used on the mount screws to stop the hex screw threads from backing out after they are installed safely in position. An example of these mounting rings are the 30mm type made by Vortex Optics. The set usually costs around $200 USD
Quick-Release Cantilever Optic Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to quickly connect and remove a scope from a rifle. If they all use a comparable style mount, several scopes can often be swapped in the field. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers connect nicely to a flat top style Picatinny rail. This allows the scope to be sighted in while on the rifle, removed from the rifle, and remounted while keeping precision. These types of mounts are useful and practical for shooting platforms which are hauled around a lot, to take off the scope glass from the rifle for protection, or for scopes which are adopted in between several rifles. An example of this mount type is the 30mm mount from Vortex Optics. It usually costs around $250 USD
Sealing and Gas Purging for Rifle Glass Tubes
Wetness inside your rifle optic can ruin a day of shooting and your pricey optic by triggering fogging and developing residue inside of the scope tube. The majority of scopes prevent moisture from getting in the scope tube with a system of sealing O-rings which are water resistant.
What to Know About Optic Tube Gas Purging
Another element of preventing the accumulation of wetness within the rifle optic tube is filling the tube with a gas like nitrogen. Since this area is currently taken up by the gas, the optic is less impacted by temperature alterations and pressure differences from the outside environment which might potentially permit water vapor to permeate in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a decent rifle scope to seek out.
