Description
Rifle Scope Product Details
Bushnell Elite Tactical Riflescope DMR II, 3.5-21×50, G3 Reticle_ET732150ED
The compact DMR II measures just over 13 inches and provides long-range precision without sacrificing short-range capability. Features a black finish and the G3, G3-i and Horus Vision H59 reticles.
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.
IPX7 Waterproof construction – O-ring sealed optics stay dry inside, when immersed in three feet of water for up to 30 minutes.
Throwhammer Throw Lever – Allows for quick magnification changes with a simple flick of a finger.
About the Bushnell Company
Bushnell is a premium maker for firearm scopes, optics, mounts, and other components used for guns like rifles and long guns. They style and make their products by applying elements which are durable and long lasting. This includes the Bushnell Elite Tactical Riflescope DMR II, 3.5-21×50, G3 Reticle_ET732150ED by Bushnell. For more shooting products, visit their site.
All About Glass
Rifle scopes permit you to exactly align a rifle at different targets by lining up your eye with the target at range. They do this through magnifying the target by utilizing a series of lenses inside the scope. The scope’s positioning can be adjusted to take into account various ecological things like wind speed and elevation increases to account for bullet drop.
The scope’s function is to help the shooter understand precisely where the bullet will land based upon the sight picture you are seeing with the scope as you line up the scope’s crosshair or reticle with the intended target. The majority of contemporary rifle optics have about 11 parts which are arranged internally and on the exterior of the scope. These optic pieces consist of the rifle scope’s body, lenses, windage and elevation dials, focus rings, and other components. See all eleven parts of a scope.
Rifle Scope Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Considering the best type of rifle glass is based on what type of shooting you plan on doing.
First Focal Plane Scope Info
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These types of scopes are useful for:
- Quick acquisition, far away types of shooting
- Shooting scenarios where computations are minor
- Experienced shooters who recognize their target “hold over” and “lead” ratios for their weapon
- Shooters who don’t mind the reticle is bigger and uses up more visual eyesight area than a SFP reticle
Second Focal Plane Scopes
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 styles of shooting where shooters have additional time to make ballistic calculations
- Shooting where most of the shots occur within shorter ranges and spaces
- Shooters who would like a clearer optic sight picture with less room taken up by the bigger FFP reticle
Details on Scope Magnification
The measure of scope zoom you need depends on the kind of shooting you would like to do. Pretty much every style of rifle scope offers some amount of zoom. The quantity of magnification a scope provides is identified by the diameter, thickness, and curvatures of the lenses within the rifle optic. The magnifying level of the optic is the “power” of the scope. This means what the shooter is looking at through the scope is magnified times the power factor of what can generally be seen by human eyes.
Fixed Single Power Lens Glass
A single power rifle scope will have a zoom number designator like 4×32. This means 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.
Info About Adjustable Power Lens Scopes
Variable power rifle scopes use enhanced power. The power adjustment is achieved by using the power ring part of the scope near the back of the scope by the eye bell.
Power and Range
Here are some suggested scope powers and the ranges where they could be successfully used. Always remember that high magnification optics will not be as efficient as lower magnification level optics and scopes due to the fact that too much magnification can be a detractor. The exact same concept goes for longer ranges where the shooter needs increased power to see exactly where to properly aim the rifle.
Info on Lens Coating
All top of the line rifle scope lenses are covered. Lens coating can be a significant element of a rifle when looking into high end rifle optics and scope setups.
HD Versus ED Lens Coatings
Some scope producers also use “HD” or high-definition lens coatings which use different procedures, aspects, polarizations, and chemicals to draw out different colors and viewable quality through the lens. Some scope makers use “HD” to refer to “ED” indicating extra-low dispersion glass.
What to Know About Single Finishing Versus Multi-Coating
Different optic lenses can also have different coverings used 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.
This lens treatment can offer protection to the lens from scratches while decreasing 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 on the scope manufacturer and how much you paid for it.
Some scope producers likewise make it a point to define if their optic lenses are coated or “multi” coated. This suggests the lens has had numerous treatments applied to the surfaces of the glass. If a lens receives multiple treatments, it can prove that a company is taking several actions to fight various natural elements like an anti-glare coating, a scratch resistant anti-abrasion finishing, followed by a hydrophilic coating. This also does not always indicate the multi-coated lens will perform better than a single layered lens. Being “better” is dependent on the maker’s lens treatment solutions and the quality of components used in constructing the rifle glass.
Anti-water Optic Lens Finishing
Water on a lens doesn’t help with keeping a clear sight picture through a scope at all. Numerous top of the line and high-end optic makers will coat their lenses with a hydrophilic or hydrophobic covering which is water repellent.
Optic Mounting Choices
Installing approaches for scopes come in a couple of options. There are the standard scope rings which are individually installed to the scope and one-piece mounts which cradle the scope. These different kinds of mounts also usually are made in quick release variations which use toss levers which enable rifle operators to rapidly mount and dismount the scope.
Hex Key Glass Ring Mounts
Basic, clamp style mounting optic rings use hex head screws to position to the flattop design Picatinny scope mounting rails on rifles. These styles of scope mounts use two detached rings to support the scope, and are normally made from 7075 T6 billet aluminum or similar materials which are made for long distance precision shooting. This type of scope mount is good for rifles which need to have a long lasting, unfailing mount which will not move despite how much the scope is moved about or jarring the rifle takes. These are the design of mounts you should get for a specialized scope system on a long distance scouting or competitors long gun that will rarely need to be modified or recalibrated. Blue 242 Loctite threadlocker can additionally be used on screws to stop the hex screw threads from backing out after they are installed tightly in place. An example of these mounting rings are the 30mm type made by the Vortex Optics company. The set generally costs around $200 USD
Quick-Release Cantilever Glass Rings
These types of quick-release rifle scope mounts can be used to quickly attach and remove a scope from a rifle before reattaching it to a different rifle. Numerous scopes can also be swapped out if they all use a similar style mount. These types of mounts are handy for rifle platforms which are carried a lot, to swap out the optic from the rifle for protecting the scope, or for scopes which are used between multiple rifles or are situationally focused.
Sealing and Gas Purging for Optic Tubes
Wetness inside your rifle scope can ruin a day of shooting and your pricey optic by bringing about fogging and creating residue inside of the scope tube. Many scopes avoid wetness from going into the scope tube with a system of sealing O-rings which are waterproof.
Info Around Rifle Optic Tube Gas Purging
Another part of avoiding the buildup of moisture within the rifle scope’s tube is filling the tube with a gas like nitrogen. Because this space is currently taken up by the gas, the glass is less impacted by temp changes and pressure distinctions from the outdoor environment which could potentially permit water vapor to permeate in around the seals to fill the void which would otherwise be there. These are good qualities of a decent rifle scope to seek out.
