Last update on February 2, 2023 // Source: Amazon API
Rifle Scope Product Details
STEINER OPTICS 8713-T3 M5Xi 3-15×50 TReMoR3 (Coyote Brown)
The 3-15×50 M5Xi Military Riflescope by Steiner Optics is a precision-engineered instrument suited to mid-range shooting. The fully multi-coated optical system features a 50mm objective for gathering more light in very low light conditions and 3-15x zoom for target acquisition. Broadband anti-reflective coatings assure greater than 94% light transmission for optimal performance in low-light conditions. The glass-etched Horus Tremor 3 illuminated reticle features seven night and four day levels with “off” positions at each end, and quick standby levels between each for fast return setting. The tube and knob configuration are optimized for more mounting options and optimum performance with different rifles and added equipment. Precision 1/10 MRAD impact point adjustments for windage and elevation are accomplished with tactile click-by-click feedback. Parallax can be adjusted from 54. 7 yards to infinity with the side-mounted knob. The scope features one-piece aluminum tube construction and is waterproof to 33′ and fog proof.
Rifle Scope Product Features
Horus Tremor 3 Reticle, 1st Plane
34mm Single-Piece Main tube
1/10 MRAD Impact Point Correction
15 MRAD Windage/34 MRAD Elevation
About the STEINER OPTICS Manufacturer
STEINER OPTICS is a premium maker for rifle scopes, optics, mounts, and other accessories used for firearms like rifles and long guns. They style and build their mounts, scopes, and related products by making the most of elements which are long lasting and resilient. This includes the STEINER OPTICS 8713-T3 M5Xi 3-15×50 TReMoR3 (Coyote Brown) by STEINER OPTICS. For additional shooting items, visit their site.
Rifle scopes permit you to exactly align a rifle at different targets by aligning your eye with the target at range. They do this through magnification by using a series of lenses inside the scope. The scope’s alignment can be adapted for consideration of different environmental aspects like wind speed and elevation to make up for bullet drop.
The scope’s purpose is to help the shooter understand exactly where the bullet will hit based on the sight picture you are viewing through the optic as you line up the scope’s crosshair or reticle with the intended target. Many modern-day rifle scopes have around 11 parts which are arranged within and externally on the scope. These scope parts include the rifle scope’s body, lenses, elevation dials or turrets, objective focus rings, and other parts. Learn about the eleven parts of glass.
Rifle Glass Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Choosing the finest type of rifle glass is based on what type of shooting you plan to do.
Info on First Focal Plane Optics
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. This induces the reticle to increase in size based upon the extent of magnification being used. The outcome is that the reticle measurements are the same at the amplified distance as they are at the non amplified distance. For instance, one tick on a mil-dot reticle at one hundred yards without having “zoom” is still the same tick at 100 yards with 5x “zoom”. These types of scopes work for:
- Quick acquisition, long distance kinds of shooting
- Shooting circumstances where computations are minimal
- Experienced shooters who have an idea for their target “hold over” as well as “lead” equations for their long guns
- Shooters who don’t mind the reticle is bigger and occupies more visual eyesight space than a SFP reticle
Second Focal Plane Scope Details
Second focal plane glass (SFP) come with the reticle to the rear of the magnifying lens. This causes the reticle to stay at the same size relative to the level of zoom being used. The end result is that the reticle dimensions adjust based upon the zoom employed to shoot over longer distances considering the markings represent various increments which can vary with the magnification. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick. These particular varieties of glass work for:
- Long distance styles of shooting where shooters have extra time to make ballistic computations
- Shooting where most shots occur within shorter distances and ranges
- Shooters who prefer a clearer optic sight picture without area taken up by the bigger FFP reticle
Rifle Glass Magnification
The measure of scope zoom you need on your optic depends on the kind of shooting you desire to do. Practically every kind of rifle glass offers some level of magnification. The amount of zoom a scope offers is established by the dimension, density, and curves of the lens glass inside of the rifle scope. The magnification level of the optic is the “power” of the glass. This means what the shooter is checking out through the scope is magnified times the power aspect of what can generally be seen by human eyes.
Info About Single Power Lens Rifle Scopes
A single power rifle optic uses a zoom number designator like 4×32. This means the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this kind of scope can not adjust because it is a set power scope.
About Adjustable Power Lens Glass
Variable power rifle scopes use variable power levels. The power change is achieved by making use of the power ring part of the scope near the rear of the scope by the eye bell.
Power and Range Correlations
Here are some advised scope power levels and the distances where they can be efficiently used. Highly magnified glass will not be as efficient as lower magnification level optics due to the fact that too much zoom can be a bad thing. The same concept relates to extended ranges where the shooter needs adequate power to see where to best aim the rifle.
Lens Coating for Rifle Glass
All contemporary rifle optic lenses are covered. Lens finish can be an important aspect of a rifle system when buying high end rifle optics and scope systems.
ED Versus HD Glass
Some optic suppliers additionally use “HD” or high-def glass finishes that apply different procedures, polarizations, aspects, and chemicals to extract numerous colors and viewable target visibility through the lens. This high-def finish is typically used with greater density lens glass which reduces light’s ability to refract through the lens glass. Some scope vendors use “HD” to describe “ED” signifying extra-low dispersion glass. ED handles how certain colors are presented on the chroma spectrum and the chromatic aberration which is similarly called color distortion or fringing. Chromatic aberration may be noticeable over objects with defined outlines as light hits the object from particular angles.
Single Rifle Optic Lens Finish Versus Multi-Coating
Various optic lenses can also have different finishes applied to them. All lenses usually have at least some type of treatment or covering applied to them before being used in a rifle scope or optic.
Single layered lenses have a treatment applied to them which is generally a protective and enhancing multi-purpose treatment. This lens treatment can shield the lens from scratches while minimizing 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 upon the scope maker and how much money you spent paying for it. Both the make and cost are indicators of the lens quality.
Some scope producers also make it a point to define if their optic lenses are covered or “multi” coated. Being “better” depends on the manufacturer’s lens treatment technology and the quality of products used in constructing the rifle scope.
Rifle Glass Lens Anti-water Finishing
Water on a lens does not 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 anti-water finish.
Optic Installing Alternatives
Mounting solutions for scopes come in a few choices. There are the standard scope rings which are separately installed to the scope and one-piece mounts which cradle the scope. These different kinds of mounts also generally can be found in quick release variations which use toss levers which allow rifle operators to quickly install and dismount the scope.
Hex Key Optic Ring Mounting Solutions
Standard, clamp style mounting scope rings use hex head screws to mount to the flattop design Picatinny scope installation rails on rifles. These types of scope mounts use a couple of separate rings to support the optic, and are made from 7075 T6 billet aluminum which are designed for long range accuracy shooting. This type of scope mount is fine for rifles which require a durable, rock solid mounting solution which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Glass Ring Mounts
These types of quick-release rifle scope mounts can be used to quickly connect and take off a scope from a rifle before reattaching it to a different rifle. Multiple scopes can even be swapped out if they all use a similar design mount. These types of mounts are handy for long guns which are transferred a lot, to remove the optic from the rifle for protecting the scope, or for scopes which are used between numerous rifles or are situationally focused.
Info on Rifle Optic Tube Sealing and Gas Purging
Moisture inside your rifle glass can ruin a day of shooting and your costly optic by triggering fogging and producing residue inside of the scope’s tube. Most scopes protect against humidity from getting in the optical tube with a system of sealing O-rings which are waterproof. Typically, these water-resistant optics can be submerged within 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be plenty of wetness avoidance for conventional use rifles, unless you intend on taking your rifle sailing and are concerned about the optic still working if it goes over the side and you can still recover the firearm.
Gas Purged Rifle Scope Tubes
Another part of avoiding the buildup of wetness inside of the rifle optic’s tube is filling the tube with a gas like nitrogen. Considering that this space is currently taken up by the gas, the glass is less altered by climate alterations and pressure differences from the outside environment which could possibly allow water vapor to permeate in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a good rifle scope to seek out.