Description
Rifle Scope Product Details
Persei 2-7×42 Long Eye Relief Scope Mil-dot Reticle 30mm Tube Diameter Fits Mosin Nagant 1891/30 M39 with Mount Rings Tactical Rifle Scope
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 42mm 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 Mil-dot 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 Company
Persei is a premium manufacturer for long gun scopes, optics, mounts, and other add-ons used for guns like rifles and long guns. They style and make their mounts, scopes, and related products using elements which are resilient and long lasting. This includes the Persei 2-7×42 Long Eye Relief Scope Mil-dot Reticle 30mm Tube Diameter Fits Mosin Nagant 1891/30 M39 with Mount Rings Tactical Rifle Scope by Persei. For additional shooting goods, visit their website.
What You Need to Know About Rifle Optics
Rifle scopes allow you to precisely aim a rifle at various targets by lining up your eye with the target at range. They do this through zoom by using a set of lenses within the scope. The scope’s positioning can be adjusted for the consideration of varied ecological aspects like wind and elevation to make up for bullet drop.
The scope’s function is to understand exactly 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. Many modern rifle scopes and optics have about eleven parts which are arranged within and externally on the scope body. These scope parts include the rifle scope’s body, lenses, adjustment turrets or dials, focus rings, and other parts. See all eleven parts of scopes.
The Types of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Opting for the optimal type of rifle glass is based around what type of shooting you plan to do.
First Focal Plane Glass Details
Focal plane scopes (FFP) come with the reticle in front of the zoom lens. This triggers the reticle to increase in size based on the amount of zoom being used. The outcome is that the reticle measurements are the same at the enhanced range as they are at the non magnified distance. One tick on a mil-dot reticle at 100 yards without “zoom” is still the same tick at 100 yards with 5x “zoom”. These types of scopes work for:
- Quick acquisition, far away types of shooting
- Shooting circumstances where calculations are marginal
- Experienced shooters who recognize their aim point “hold over” as well as “lead” equations for their firearms
- Shooters who don’t mind the reticle is bigger and requires more visual sight space than a SFP reticle
Second Focal Plane Optic Info
Second focal plane scopes (SFP) include the reticle behind the zoom lens. This causes the reticle to stay at the very same scale relative to the level of magnification being used. The effect is that the reticle measurements change based upon the magnification employed to shoot over longer ranges since the reticle measurements represent different increments which change with the magnification level. In the FFP illustration with the SFP optic, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick. These sorts of scopes work for:
- Far away styles of shooting where shooters have extra time to make ballistic estimations
- Shooting where most shots happen within much shorter ranges and proximities
- Shooters who choose a clearer optic picture with less space used up by the larger sized FFP reticle
About Optic Zoom
The amount of scope magnification you need is based on the type of shooting you want to do. Pretty much every kind of rifle optic supplies some degree of magnification. The amount of magnification a scope gives is identified by the dimension, density, and curvatures of the lenses within the rifle optic. The magnification level of the optic is the “power” of the scope. This signifies what the shooter is looking at through the scope is magnified times the power factor of what can usually be seen by human eyes.
Single Power Lens Rifle Scope Info
A single power rifle scope uses a zoom number designator like 4×32. This indicates the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this kind of scope can not fluctuate given that it is a fixed power scope.
About Adjustable Power Lens Rifle Optics
Variable power rifle scopes can be changed between magnification increments. It will list the magnification amount in a format such as 2-10×32. These numbers mean the magnification of the scope could be set between 2x and 10x power. This additionally involves the power levels in-between 2 and 10. The power adjustment is achieved by applying the power ring part of the scope near the rear of the scope by the eye bell piece.
Power Levels and Range
Here are some advised scope powers and the distances where they can be efficiently used. Consider that high magnification optics and scopes will not be as practical as lower magnification level scopes due to the fact that excessive magnification can be a negative thing in certain situations. The same concept relates to extended distances where the shooter needs enough power to see precisely where to properly aim the rifle at the target.
Lens Finish for Optics
All modern-day rifle scope lenses are layered. There are different types and qualities of coverings. When thinking about high end rifle targeting systems, Lens finish can be an essential component of a rifle. The glass lenses are one of the most significant pieces of the scope due to the fact that they are what your eye looks through while sighting a rifle in on the target. The finishing on the lenses protects the lens surface and also helps with anti glare capabilities from excess sunshine and color exposure.
HD Versus ED Glass Lens Coatings
Some glass manufacturers even use “HD” or high-def lens finishings that make the most of various processes, rare earth compounds, aspects, and polarizations to draw out a wide range of colors and viewable target visibility through lenses. This high-definition coating is normally used with increased density lens glass which lowers light’s potential to refract by means of the lens glass. Some scope manufacturers use “HD” to refer to “ED” signifying extra-low dispersion glass. ED deals with how colors are presented on the chroma spectrum and the chromatic aberration or deviance which is similarly called color distortion or fringing. Chromatic aberration is often obvious over things with defined shapes as light hits the item from various angles.
Single Covering Versus Multi-Coating
Various optic lenses can also have different finishes applied to them. All lenses generally have at least some type of treatment or coating applied to them prior to being used in a rifle scope or optic.
Single covered lenses have a treatment applied to them which is normally a protective and enhancing multi-purpose treatment. This lens treatment can shield the lens from scratches while decreasing glare and other less useful things experienced in the shooting environment while sighting in with the optic. The quality of a single layered lens depends upon the scope company and the amount you spent for it. Both the make and cost are signs of the lens quality.
Some scope producers similarly make it a point to specify if their optic lenses are coated or “multi” coated. Being “better” depends on the manufacturer’s lens treatment technology and the quality of products used in constructing the rifle scope.
Anti-water Lens Coating
Water on an optical lens doesn’t improve retaining a clear sight picture through a scope whatsoever. Numerous top of the line or high-end optic makers will coat their lenses with a hydrophobic or hydrophilic covering. The Steiner Optics Nano-Protection is a good example of this sort of treatment. It treats the surface of the Steiner scope lens so the H2O particles can not bind to it or create surface tension. The result is that the water beads roll off of the scope to keep a clear, water free sight picture.
Options for Mounting Glass on Long Guns
Mounting solutions for scopes are available in a few options. There are the basic scope rings which are separately installed to the optic and one-piece scope mounts which cradle the scope. These different types of mounts also typically can be found in quick release variations which use toss levers which permit rifle operators to rapidly install and dismount the scopes.
Hex Key Rifle Optic Ring Mounting Solutions
Basic, clamp style mounting optic rings use hex head screws to fix to the flattop design Picatinny scope mounting rails on the tops of rifles. These kinds of scope mounts use two independent 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 type of scope mount is great for rifles which need to have a long lasting, hard use mount which will not shift despite how much the scope is moved about or abuse the rifle takes. These are the style of mounts you want for a devoted optics system on a far away hunting or hard target interdiction firearm which will almost never need to be changed or recalibrated. Blue 242 Loctite threadlocker can also be used on the scope mount screws to keep the hex screws from backing out after they are installed firmly in position. An example of these mounting rings are the 30mm style from the Vortex Optics company. The set normally costs around $200 USD
Quick-Release Cantilever Scope Ring Mounts
These types of quick-release rifle scope mounts can be used to quickly detach a scope and connect it to a different rifle. Numerous scopes can also be swapped out if they all use a similar design mount. These types of mounts are convenient for rifle platforms which are carried a lot, to swap out the optic from the rifle for protection, or for optics which are used in between several rifles.
Details on Glass Tube Sealing and Gas Purging
Moisture inside your rifle optic can destroy a day of shooting and your pricey optic by triggering fogging and creating residue inside of the scope tube. Many scopes prevent moisture from entering the scope tube with a system of sealing O-rings which are waterproof.
What to Know About Glass Tube Gas Purging
Another part of preventing the accumulation of moisture inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Considering that this area is currently occupied by the gas, the scope is less affected by condition shifts and pressure distinctions from the outdoor environment which could possibly allow water vapor to permeate in around the seals to fill the void which would otherwise exist. These are good qualities of a good rifle scope to seek out.
