Last update on August 14, 2022 // Source: Amazon API
Rifle Scope Product Details
OTW Rifle Scope 3-12X40,BDC Reticle 750 Capped Turrets for Hunting Black Matte
Rifle Scope Product Features
About this item
Sight telescope with 3 to 12X magnification and 40mm objective.
The BDC reticle provides bullet drop compensation up to 750yards,effectively improve shooting accuracy.
Fully multilayer optical system that provides up to 90% light transmission and maximum brightness.
Waterproof and Anti-fog design, Nitrogen filled and O-ring sealed.
Provide Full Lifetime Warranty for both Quality and Service guarantee..
The multi-coated green objective lens boast higher light transmittance for better clarity performance
Quick adjustment of the eyepiece in half a circle,you can get a more clearly View
IP65-rated water resistant and designed for use
in heavy rain
Objective Diameter: 40mm
Eye Relief: 4.13″-3.93″
Field of View: 17.3-4.4 ft /100 yds
Tube Size: 30 mm
Adjustment Graduation: 1click 1/4″ 100YD
The BDC reticle is designed to match the trajectory of today’s modern inline rifles. Zero in at 100 yards using the exact ammunition you expect to hunt or shoot with. The reticle provides bullet drop compensation up to 750 yards.
Multi-coated lens with 90% transmission, brightness from dawn to dusk ensures a very bright image with high resolution images.Precise Hand-turn 1/4-MOA click adjustments,positive-click reticle adjustments get you zeroed in quicker and maintain your setting even with heavy recoil. Hunters can quickly focus during use and aim accurately at prey.
Compared to other eyepieces, our product can easily adjust the pupil distance and only need to rotate half a circle. Waterproof and Anti-fog design, Nitrogen filled and O-ring sealed,extend product life.
About the OTW Company
OTW is a premium company for weapon scopes, optics, mounting solutions, and other accessories used for firearms like rifles and long guns. They innovate and make their scopes and related products by making the most of building materials which are resilient and long lasting. This includes the OTW Rifle Scope 3-12X40,BDC Reticle 750 Capped Turrets for Hunting Black Matte by OTW. For additional shooting items, visit their site.
All About Rifle Optics
Rifle scopes enable you to precisely align a rifle at various targets by aligning your eye with the target over a distance. They do this through zoom using a set of lenses inside the scope. The scope’s alignment can be dialed in to take into account different environmental things like wind speed and elevation increases or decreases 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 seeing via the optic as you line up the scope’s crosshair or reticle with the target. Most contemporary rifle scopes have about 11 parts which are arranged inside and outside of the optic. These scope parts include the rifle scope’s body, lenses, modification dials or turrets, objective focus rings, and other components. See all eleven parts of a scope.
Rifle Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The form of focal plane an optic has establishes where the reticle or crosshair is located relative to the optic’s zoom. It actually indicates the reticle is behind or ahead of the magnifying lens of the optic. Deciding on the best form of rifle glass depends upon what variety of shooting or hunting you intend on doing.
Info About First Focal Plane Glass
Focal plane scopes (FFP) feature the reticle in front of the magnification lens. These styles of scopes are beneficial for:
- Quick acquisition, far away types of shooting
- Shooting scenarios where estimations are marginal
- Experienced shooters who recognize their aim point “hold over” and also “lead” correlations for their firearms
- Shooters who do not mind the reticle is enlarged and occupies more visual sight space than a SFP reticle
Second Focal Plane Scopes
Second focal plane optics (SFP) feature the reticle behind the magnifying lens. This triggers the reticle to remain at the same size in connection with the amount of zoom being used. The outcome is that the reticle measurements alter based on the magnification employed to shoot over greater distances considering that the reticle measurements present various increments which fluctuate with the zoom level. In the FFP illustration with the SFP optic, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick reticle measurement. These particular styles of optics work for:
- Long distance styles of shooting where shooters have extra time to make ballistic calculations
- Shooting where most shots happen within much shorter proximities and ranges
- Shooters who prefer a clearer optic sight picture without room taken up by the bigger FFP reticle
Rifle Optic Zoom
The amount of zoom a scope offers is figured out by the diameter, thickness, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Single Power Lens Rifle Optic Facts
A single power rifle optic or scope uses a magnification number designator like 4×32. This means the magnification power of the scope is 4x power while the objective lens is 32mm. The zoom of this type of optic can not fluctuate given that it is a fixed power scope.
Variable Power Lens Rifle Glass
Variable power rifle scopes have adjustable power. It will list the zoom degree in a format like 2-10×32. These numbers suggest the magnification of the scope can be set between 2x and 10x power. This also utilizes the powers in-between 2 and 10. The power adaptation is achieved using the power ring component of the scope near the rear of the scope by the eye bell.
The Power Level and Range Correlation of Optics
Here are some suggested scope powers and the ranges where they can be successfully used. High power glass will not be as useful as lower powered rifle scope glass because too much magnification can be a negative aspect depending on your shooting distance. The very same idea relates to extended ranges where the shooter needs enough power to see precisely where to properly aim the rifle.
Rifle Scope Lens Coating
All contemporary rifle scope and optic lenses are coated. There are various types and qualities of glass lens coverings. When looking at luxury rifle scope setups, Lens finishing can be a critical aspect of defining the rifle’s capability. The lenses are one of the most essential components of the optic because they are what your eye looks through while sighting a rifle in on the point of impact. The finishing on the lenses offers protection to the lens surface area as well as improves anti glare from excess light and color exposure.
About Rifle Scope Lens Coatings – HD Versus ED
Some scope makers likewise use “HD” or high-definition lens finishings which use different techniques, chemicals, polarizations, and elements to draw out different colors and viewable definition through the lens. Some scope producers use “HD” to refer to “ED” indicating extra-low dispersion glass.
Single Coating Versus Multi-Coating for Rifle Optics
Various optic lenses can even have different finishes applied to them. All lenses typically have at least some type of treatment or finish applied to them prior to being used in a rifle scope or optic assembly. Because the lens isn’t simply a raw piece of glass, they require performance enhancing coatings. It is part of the carefully tuned optic. It needs to have a finish placed on it so that the lens will be efficiently functional in many kinds of environments, degrees of sunshine (full VS shaded), and other shooting conditions.
Single covered lenses have a treatment applied to them which is typically a protective and boosting multi-purpose treatment. This lens treatment can protect 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 coated lens depends on the scope producer and the amount you spent on it. The scope’s maker and cost are indications of the lens quality.
Some scope producers also make it a point to specify if their optic lenses are coated or “multi” covered. This means the lens has multiple treatments applied to the surfaces of the glass. If a lens gets several treatments, it can indicate that a producer is taking several actions to fight various environmental elements like an anti-glare finishing, a scratch resistant anti-abrasion coating, followed by a hydrophilic coating. This also does not always indicate the multi-coated lens will perform much better than a single coated lens. Being “much better” depends upon the producer’s lens treatment technology and the quality of components used in building the rifle optic.
Hydrophobic Lens Coatings
Water on a lens doesn’t improve maintaining a clear sight picture through a scope in any way. Many top of the line or premium scope makers will coat their lenses with a hydrophobic or hydrophilic finishing. The Steiner Optics Nano-Protection is a good example of this sort of treatment. It deals with the exterior surfaces of the Steiner glass lens so the H2O molecules can not bind to it or produce surface tension. The outcome is that the water beads roll off of the scope to maintain a clear, water free sight picture.
Choices for Installing Rifle Glass on Long Guns
Installing options for scopes are available in a few choices. There are the standard scope rings which are separately mounted to the optic and one-piece mounts which cradle the scope. These different kinds of mounts also usually come in quick release variations which use throw levers which allow rifle operators to rapidly mount and dismount the optics.
Hex Key Rifle Optic Rings
Standard, clamp style mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mount rails on rifles. These types of scope mounts use double individual rings to support the scope, and are normally constructed from 7075 T6 billet aluminum or similar materials which are manufactured for long distance precision shooting. This form of scope mount is effective for rifles which require a durable, unfailing mount which will not change despite just how much the scope is moved about or abuse the rifle takes. These are the design of mounts you really want to have for a faithful optics setup on a reach out and touch someone hunting or interdiction rifle that will rarely need to be altered or adjusted. Blue 242 Loctite threadlocker can additionally be used on the mount’s screws to keep the hex screws from wiggling out after they are installed safely in place. An example of these mounting rings are the 30mm style from the Vortex Optics brand. The set normally costs around $200 USD
Quick-Release Cantilever Rifle Glass Rings
These types of quick-release rifle scope mounts can be used to rapidly connect and detach a scope from a rifle before reattaching it to a different rifle. Several scopes can also be swapped out if they all use a similar style mount. These types of mounts are convenient for long guns which are transferred a lot, to swap out the optic from the rifle for protection, or for scopes which are used in between several rifles.
Rifle Optic Tube Sealing and Gas Purging
Moisture inside your rifle optic can ruin a day of shooting and your highly-priced optic by inducing fogging and making residue within the scope tube. The majority of scopes prevent humidity from getting in the scope tube with a series of sealing O-rings which are waterproof. Normally, these water-resistant optics can be immersed under 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be more than enough humidity prevention for common use rifles for hunting and sporting purposes, unless you plan on taking your rifle aboard a watercraft and are concerned about the optic still working if it goes overboard and you can still retrieve the rifle.
Rifle Scope Gas Purging
Another part of preventing the buildup of wetness within 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 affected by temperature level shifts and pressure variations from the outdoor environment which may potentially allow water vapor to permeate in around the seals to fill the void which would otherwise be there. These are good qualities of a good rifle scope to look for.