Last update on February 5, 2023 // Source: Amazon API
Rifle Sight Product Details
Tech-SIGHT’S TSM200 Adjustable Aperture Sight for THE MARLIN 60, 795, 70P & 70PSS Rifles
“GI” type post and aperture sight picture. Increases sight radius by 6″. Includes front and rear sight. Rear sight Windage & Elevation adjustable with detent locking. Easy installation with no drilling or tapping required.
Rifle Sight Product Features
GI type sights for your THE MARLIN 60, 795, 70P and 70PSS Rifles
the TSM200 allows for elevation & Windage adjustment at the rear sight.
Includes front and rear sight. Increases sight radius by 6″
Easy installation with no drilling or tapping required.
About the Tech SIGHT Manufacturer
Tech SIGHT is a premium producer for firearm scopes, optics, mounting solutions, and other accessories used for guns like rifles and long guns. They innovate and manufacture their mounts and related products making the most of materials which are resilient and long lasting. This includes the Tech-SIGHT’S TSM200 Adjustable Aperture Sight for THE MARLIN 60, 795, 70P & 70PSS Rifles by Tech SIGHT. For additional shooting items, visit their website.
Rifle scopes allow you to precisely aim a rifle at different targets by lining up your eye with the target over a range. They do this through magnifying the target by making use of a set of lenses inside the scope. The scope’s positioning can be adjusted for consideration of varied natural elements like wind speed and elevation increases 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 through the scope as you align the scope’s crosshair or reticle with the target. Most modern-day rifle scopes have about eleven parts which are arranged inside and outside of the scope body. These scope parts consist of the rifle scope’s body, lenses, modification dials or turrets, focus rings, and other parts. See all eleven parts of a rifle optical system.
Rifle Scope Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Going for the optimal type of rifle scope is based around what type of shooting you plan on doing.
First Focal Plane Glass
Focal plane scopes (FFP) come with the reticle in front of the magnification lens. This induces the reticle to increase in size based on the level of magnification being used. The outcome is that the reticle measurements are the same at the enhanced distance as they are at the non magnified distance. One tick on a mil-dot reticle at 100 yards without “zoom” is still the identical tick at 100 yards with 5x “zoom”. These kinds of scopes are useful for:
- Quick acquisition, far away kinds of shooting
- Shooting situations where calculations are marginal
- Experienced shooters who have an idea for their target “hold over” as well as “lead” correlations for their firearms
- Shooters who do not mind the reticle is bigger and takes up more visual eyesight room than a SFP reticle
Second Focal Plane Optic Details
Second focal plane optics (SFP) include the reticle to the rear of the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick measurement would be 1/5th of the non “zoom” tick measurement.
- Far away kinds of shooting where shooters have extra time to make ballistic estimations
- Shooting where most shots take place within shorter spaces and ranges
- Shooters who select a clearer optic sight picture without area taken up by the larger size FFP reticle
Ins and Outs of Rifle Scope Magnification
The amount of scope zoom you need on your scope depends on the form of shooting you plan to do. Virtually every kind of rifle optic supplies some degree of magnification. The level of zoom a scope delivers is established by the dimension, thickness, and curves of the lens glass within the rifle optic. The magnification level of the scope is the “power” of the glass. This suggests what the shooter is checking out through the scope is amplified times the power aspect of what can usually be seen by human eyes.
About Fixed Single Power Lens Scopes
A single power rifle scope comes with a zoom number designator like 4×32. This means the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this kind of optic can not adjust given that it is set from the factory.
Variable Power Lens Rifle Glass Facts
Variable power rifle scopes use variable power levels. The power modification is handled by the power ring part of the scope near the back of the scope by the eye bell.
Power Levels and Range Correlations
Here are some advised scope power settings and the ranges where they may be effectively used. High power optics will not be as effective as lower magnification optics considering too much zoom can be a negative aspect depending on your shooting distance. The same relates to longer ranges where the shooter needs to have adequate power to see precisely where to best aim the rifle.
Lens Finish for Rifle Optics
All contemporary rifle scope lenses are covered in special coatings. There are various types and qualities of lens coatings. Lens covering can be an essential aspect of a rifle when thinking of high end rifle optics and scope systems. The lenses are one of the most critical 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 coating on the lenses offers protection to the lens surface as well as helps with anti glare from refracted direct sunlight and color visibility.
HD Versus ED Lens Coatings
Some scope manufacturers will also use “HD” or high-def glass finishings that employ different processes, components, chemicals, and polarizations to extract separate colors and viewable definition through the lens. This high-def finish is frequently used with more costly, high density lens glass which drops light’s opportunity to refract by means of the lens glass. Some scope makers use “HD” to describe “ED” signifying extra-low dispersion glass. ED handles how certain colors are presented on the chroma spectrum and the chromatic deviance or aberration which is similarly called color distortion or fringing. Chromatic aberration can be visible over things with well defined outlines as light hits the item from certain angles.
Optic Lens Single Coating Versus Multi-Coating
Various optic lenses can likewise have different coverings used to them. All lenses usually have at least some type of treatment or covering used to them prior to being used in a rifle scope or optic.
Single layered lenses have a treatment applied to them which is typically a protective and boosting multi-purpose treatment. This lens treatment can safeguard the lens from scratches while lowering glare and other less advantageous things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends upon the scope maker and the amount you spent paying for it. Both the make and cost are indicators of the lens quality.
Some scope producers similarly make it a point to define if their optic lenses are layered or “multi” coated. Being “much better” depends on the manufacturer’s lens treatment innovation and the quality of materials used in constructing the rifle scope.
Hydrophobic Lens Coverings
Water on a lens doesn’t help with maintaining a clear sight picture through a scope at all. Lots of top of the line and high-end optic companies will coat their lenses with a hydrophobic or hydrophilic finish.
Optic Mounting Choices
Installing approaches for scopes are available in a few choices. There are the standard scope rings which are separately mounted to the scope and one-piece scope mounts which cradle the scope. These different kinds of mounts also usually are made in quick release versions which use toss levers which enable rifle operators to quickly install and remove the scope.
Optic Mounting Solutions with Hex Key Rings
Standard, clamp design mounting scope rings use hex head screws to mount to the flattop design Picatinny scope mount 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 is created for long range precision shooting. This type of scope install is fine for rifles which require a long lasting, sound mounting solution which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Scope Ring Mounting Solutions
These types of quick-release rifle scope mounts can be used to quickly detach a scope and connect it to a different rifle. Several scopes can also be swapped out if they all use a compatible style mount. These types of mounts are handy for rifles which are transported a lot, to remove the optic from the rifle for protecting the scope, or for optics which are used in between multiple rifles.
Details on Glass Tube Sealing and Gas Purging
Wetness inside your rifle glass can spoil a day on the range and your costly optic by inducing fogging and developing residue within the scope tube. Most optics protect against humidity from entering the optical tube with a series of sealing O-rings which are water resistant. Generally, these water resistant optics can be immersed within 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be more than enough moisture content prevention for common use rifles for hunting and sporting purposes, unless you plan on taking your rifle boating and are concerned about the scope still functioning if it is submerged in water and you can still rescue the rifle.
Gas Purged Rifle Glass Tubes
Another element of avoiding the buildup of moisture inside of the rifle optic tube is filling the tube with a gas like nitrogen. Since this space is currently occupied by the gas, the optic is less affected by temp alterations and pressure distinctions from the external environment which may possibly enable water vapor to seep in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to seek out.