Description
Rifle Scope Product Details
Bushnell Elite Tactical Riflescope SMRS II, 1-6.5×24, Illuminated CQ BDC Reticle_ET71624
The SMRS II is a low power variable optic (LPVO) with an illuminated CQ BDC reticle in the 2nd focal plane, a folding throw lever and exposed turrets.
Rifle Scope Product Features
[ELITE TACTICAL] is Bushnell’s flagship optic, crafted to the most exacting standards. Developed for the best, by the best to deliver precision at extreme distances.
Exclusive EXO Barrier Protection – Bushnell’s newest and best protective lens coating molecularly bonds to the glass, repelling water, oil, dust, debris and preventing scratches.
Throwhammer Throw Lever – Allows for quick magnification changes with a simple flick of a finger.
Argon Purged Fog-Proofing – Argon-filled optics remain stable regardless of ambient temperature for the ultimate fog-proof protection.
Includes a Close Quarters Ballistic Drop Compensation (CQ BDC) reticle.
About the Bushnell Brand
Bushnell is a premium manufacturer for firearm scopes, optics, mounts, and other components used for guns like rifles and long guns. They innovate and make their scopes, mounts, and related products by applying building materials which are durable and long lasting. This includes the Bushnell Elite Tactical Riflescope SMRS II, 1-6.5×24, Illuminated CQ BDC Reticle_ET71624 by Bushnell. For more shooting products, visit their website.
Glass Info
Rifle scopes allow you to precisely align a rifle at various targets by aligning your eye with the target over a range. They do this through zoom by utilizing a set of lenses within the scope. The scope’s positioning can be adapted for consideration of numerous ecological considerations like wind speed and elevation to account for bullet drop.
The scope’s purpose is to help the shooter understand precisely where the bullet will land based on the sight picture you are viewing through the optic as you line up the scope’s crosshair or reticle with the target. Most contemporary rifle scopes and optics have about 11 parts which are found within and on the exterior of the scope body. These optic pieces consist of the rifle scope’s body, lenses, windage turrets, focus rings, and other elements. Learn about the eleven parts of optics.
About Rifle Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. The type of focal plane an optic has determines where the reticle or crosshair is located relative to the optic’s magnification. It literally implies the reticle is located behind or ahead of the magnification lens of the scope. Selecting the most reliable form of rifle optic depends upon what variety of shooting you intend on doing.
About First Focal Plane Optics
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These types of scopes are beneficial for:
- Quick acquisition, far away types of shooting
- Shooting circumstances where computations are very little
- Experienced shooters who have an idea for their aim point “hold over” as well as “lead” equations for their long gun
- Shooters who don’t mind the reticle is enlarged and uses up more visual eyesight room than a SFP reticle
Info on Second Focal Plane Optics
Second focal plane glass (SFP) come with the reticle behind the magnifying lens. This causes the reticle to remain at the very same dimensions in connection with the level of zoom being used. The final result is that the reticle dimensions adapt based upon the zoom employed to shoot over greater distances considering that the reticle markings represent distinct increments which fluctuate with the zoom level. In the FFP example with the SFP glass, the 5x “zoom” 100 yard tick would be 1/5th of the non “zoom” tick. These particular styles of glass are useful for:
- Far away kinds of shooting where shooters have increased time to make ballistic calculations
- Shooting where most shots occur within shorter ranges and proximities
- Shooters who would like a clearer optic sight picture without space used up by the larger size FFP reticle
Zoom for Glass
The measure of scope zoom you need is based on the kind of shooting you would like to do. Pretty much every type of rifle optic offers some level of zoom. The quantity of zoom a scope offers is established by the dimension, thickness, and curvatures of the lenses within the rifle scope. The magnification level of the optic is the “power” of the glass. This suggests what the shooter is checking out through the scope is amplified times the power element of what can normally be seen by human eyes.
Info on Fixed Power Lens Rifle Optics
A single power rifle scope uses a magnification number designator like 4×32. This implies the magnification power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of scope can not fluctuate because it is a set power scope.
Adjustable Power Lens Rifle Optics
Variable power rifle scopes have adjustable power. It will list the zoom degree in a format such as 2-10×32. These numbers mean the zoom of the scope could be changed 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 part of the scope near the rear of the scope by the eye bell.
Rifle Optic Power and Ranges
Here are some advised scope powers and the distances where they can be effectively used. Keep in mind that high magnification scopes will not be as effective as lower powered optics and scopes due to the fact that excessive zoom can be a negative thing in certain situations. The same concept goes for extended ranges where the shooter needs sufficient power to see precisely where to best aim the rifle at the target.
About Rifle Scope Lens Coating
All contemporary rifle scope and optic lenses are covered in special coatings. There are different types and qualities of finishings. Lens finishing is a crucial aspect of a rifle when looking at high-end rifle optics and targeting systems. The glass lenses are among the most vital components of the optic because they are what your eye looks through while sighting a rifle in on the point of impact. The finish on the lenses protects the lens surface area as well as assists with anti glare from excess sunlight and color presence.
HD Versus ED Lenses
Some rifle glass makers will also use “HD” or high-def lens finishes which make the most of different procedures, polarizations, chemicals, and aspects to enhance numerous colors and viewable target definition through the lens. This HD finish is normally used with greater density glass which drops light’s ability to refract through the lens glass. Some scope brands use “HD” to describe “ED” indicating extra-low dispersion glass. ED handles how colors are presented on the chroma spectrum and the chromatic aberration or deviance which is also called color distortion or fringing. Chromatic aberration can be noticeable over items with hard outlines as light hits the object from specific angles.
What to Know About Single Covering Versus Multi-Coating
Various optic lenses can also have different finishings applied to them. All lenses normally have at least some type of treatment or finishing applied to them before they are used in a rifle scope or optic. Since the lens isn’t just a raw piece of glass, they require performance enhancing coatings. It becomes part of the finely tuned optic. It requires a coating to be applied to it so that it will be efficiently functional in many kinds of environments, degrees of sunshine (full light VS shade), and other shooting conditions.
Single covered lenses have a treatment applied to them which is usually a protective and improving multi-purpose treatment. This lens treatment can protect 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 layered lens depends on the scope developer and how much you spent for it. The scope’s maker and cost are indicators of the lens quality.
Some scope makers also make it a point to specify if their optic lenses are covered or “multi” covered. Being “much better” depends on the maker’s lens treatment innovation and the quality of products used in developing the rifle scope.
Hydrophobic Lens Finish
Water on a lens does not assist with maintaining a clear sight picture through a scope at all. Numerous top of the line and military grade scope makers will coat their lenses with a hydrophobic or hydrophilic anti-water finish.
Choices for Installing Rifle Optics on Firearms
Mounting approaches for scopes come in a couple of choices. There are the standard scope rings which are individually installed to the scope and one-piece mounts which cradle the scope. These different types of mounts also generally can be found in quick release versions which use throw levers which enable rifle operators to quickly install and remove the optics.
Hex Key Rifle Scope Ring Mounting Solutions
Normal, 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 developed for long range precision shooting. This type of scope install is perfect for rifles which require a resilient, sound mounting solution which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Rifle Optic Rings
These types of quick-release rifle scope mounts can be used to quickly attach and take off a scope from a rifle. A wide range of scopes can also be swapped out if they all use a complementary designed mount. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers connect solidly to a flat top design Picatinny rail. This permits the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while keeping accuracy. These types of mounts come in handy for rifles which are transported a lot, to remove the scope glass from the rifle for protection, or for optics which are employed in between multiple rifles. An example of this mount type is the 30mm mount from Vortex Optics. It generally costs around $250 USD
Sealing and Gas Purging for Optic Tubes
Wetness inside your rifle optic can destroy a day of shooting and your pricey optic by triggering fogging and producing residue inside of the scope tube. Most scopes avoid moisture from entering the scope tube with a system of sealing O-rings which are water resistant.
What to Know About Rifle Optic Tube Gas Purging
Another part of avoiding the accumulation of moisture within the rifle optic’s tube is filling the tube with a gas like nitrogen. Given that this area is already taken up by the gas, the optic is less impacted by temperature shifts and pressure variations from the outside environment which may possibly permit water vapor to seep in around the seals to fill the vacuum which would otherwise be there. These are good qualities of a good rifle scope to look for.
