Barra Rifle Scope, FT 4-20×50 [Made in Japan] for Hunting and Tactical Shooting Mildot Reticle

Description

Rifle Scope Product Details

Barra Rifle Scope, FT 4-20×50 [Made in Japan] for Hunting and Tactical Shooting Mildot Reticle
Model H50 4-20X50SF is a tactical-style, second focal plane riflescope with side parallax adjustment and a fast focus eyepiece that allows the user to quickly customize the reticle for enhanced target acquisition. This first class riflescope is ideal for high precision. Model H50 4-20X50SF is a great all-around big game hunting and sporting scope. It is especially useful in low light situations, such as hide hunting for wild boar at night. Many shooters have been impressed by the large objective lens’ ability to maximize image brightness and contrast in ambient lighting conditions. This riflescope was designed for long distance, high precision competition shooting and hunting – big game, varmints, and targets beware. Its versatile range of power makes it ideal for use with sniper and long range tactical rifles. Shooting sports or hunting, North America to Africa. This scope can take you there. Whether the timer is counting or your trophy buck senses that he’s your target, seize the moment. This scope will help you select and acquire your target before opportunity has escapes you. Model H50 4-20X50SF is quintessential for occasions where a high quality instrument is crucial to success. Product Information Windage/ Elevation adjustment (MOA) 1/4 Windage adjustment range 30 Elevation adjustment range 30 Side parallax adjustment 10YDS- Adjustable Objective N Windage/ Elevation Turret Lockable N Zero Reset Y Field of View at 100 yards 28.82-5.76 Exit Pupil (mm) 12.5-2.5 Eye Relief (mm) 90-100 Objective clear aperture (mm) 50 Length (mm) 370 Length (inches) 14.57 Weight (grams) 846 Weight (ounces) 29.84 Reticle Mildot

Rifle Scope Product Features

Solidly constructed one-piece 30 mm tube made of quality, hard black anodized, 6061 aircraft-grade aluminum for structural strength and toughness
Oxygen purged, nitrogen filled and sealed for Fogproof, Waterproof performance that you can trust.
Fully multi-coated lenses features high light transmission (99.9% light transmission per layer of coating, over 95% light transmission per scope)
Ergonomic hi-profile turrets for adjustments on the fly with Zero-reset
Diamond Standard Lifetime Warranty. Fully transferable guarantee.
One piece tube.
World class construction.
Oxygen Purged. Nitrogen filled and sealed.
Durable and Attractive.
H50 1-5×24 H50 1.5-8×24 H50 2-10×44 H50 3-15×50 H50 4-20×50 H50 5-25×50
Oxygen Purged. Nitrogen filled and sealed.
Focal Plane 2nd 2nd 2nd 2nd 2nd 2nd
Tube Diameter (mm) 30 30 30 30 30 30
Zero reset
Lifetime warranty

About the Barra Scope Maker

Barra is a premium manufacturer for long gun scopes, optics, mounts, and other accessories used for guns like rifles and long guns. They create and supply their products by using materials which are long lasting and durable. This includes the Barra Rifle Scope, FT 4-20×50 [Made in Japan] for Hunting and Tactical Shooting Mildot Reticle by Barra. For additional shooting goods, visit their site.

Glass Information

Rifle scopes allow you to precisely aim a rifle at different targets by aligning your eye with the target over a distance. They accomplish this through magnifying the target by utilizing a series of lenses inside the scope. The scope’s alignment can be adapted to account for various natural aspects 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 on the sight picture you are seeing through the optic as you align the scope’s crosshair or reticle with the target. The majority of contemporary rifle optics have about 11 parts which are located inside and on the exterior of the optic. These parts consist of the rifle scope’s body, lenses, adjustment turrets or dials, objective focus rings, and other elements. See all eleven parts of scopes.

The Varieties of Rifle Scopes

Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The form of focal plane a scope has determines where the reticle or crosshair is located relative to the optic’s magnifying adjustments. It actually means the reticle is located behind or in front of the magnification lens of the scope. Choosing the most reliable sort of rifle optic is based on what style of shooting you intend on undertaking.

First Focal Plane Scopes

Focal plane scopes (FFP) include the reticle in front of the magnification lens. These types of scopes are useful for:

• Quick acquisition, long distance types of shooting
• Shooting circumstances where computations are very little
• Experienced shooters who recognize their aim point “hold over” plus “lead” ratios for their firearms
• Shooters who don’t mind the reticle is bigger and requires more visual eyesight space than a SFP reticle

About Second Focal Plane Optics

Second focal plane optics (SFP) feature the reticle to the rear of the zoom lens. This triggers the reticle to remain at the very same scale relative to the quantity of zoom being used. The effect is that the reticle measurements shift based upon the magnification chosen to shoot over lengthier distances due to the fact that the reticle measurements represent distinct increments which differ with the magnification level. In the FFP illustration with the SFP glass, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick. These sorts of glass are handy for:

• Long distance types of shooting where shooters have extra time to make ballistic computations
• Shooting where most shots happen within shorter spaces and ranges
• Shooters who prefer a clearer optic sight picture without space used up by the larger size FFP reticle

About Rifle Scope Zoom

The quantity of zoom a scope provides is determined by the size, 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 Optics

A single power rifle scope will have a zoom number designator like 4×32. This indicates the magnification power of the scope is 4x power while the objective lens is 32mm. The zoom of this kind of optic can not change given that it is a fixed power scope.

Variable Power Lens Glass Info

Variable power rifle scopes have adjustable power. These types of scopes will note the magnification level in a format such as 2-10×32. These numbers suggest the zoom of the scope could be set in between 2x and 10x power. This always includes the power levels in-between 2 and 10. The power modification is achieved by working with the power ring component of the scope near the rear of the scope by the eye bell piece.

The Power and Range of Optics

Here are some suggested scope power settings and the ranges where they could be successfully used. Consider that high magnification optics will not be as efficient as lower powered glass due to the fact that excessive zoom can be a bad thing. The same concept goes for extended ranges where the shooter needs increased power to see where to properly aim the rifle.

Glass Lens Coating

All contemporary rifle optic lenses are layered. There are different types and qualities of finishings. When researching luxury rifle optical units, Lens finish can be a vital aspect of defining the capability of the rifle. The lenses are among the most important parts of the optic because they are what your eye sees through while sighting a rifle in on the point of impact. The finish on the lenses shields the lens exterior and helps with anti glare from excess direct sunlight and color presence.

HD Versus ED Lenses

Some rifle scope producers also use “HD” or high-definition lens coatings which use different processes, chemicals, polarizations, and elements to enhance different color ranges and viewable target visibility through lenses. This high-definition finishing is frequently used with more costly, high density lens glass which decreases light’s ability to refract by means of the lens glass. Some scope manufacturers use “HD” to refer to “ED” suggesting extra-low dispersion glass. ED handles how certain colors are presented on the chromatic spectrum and the chromatic difference or aberration which is similarly called color distortion or fringing. Chromatic aberration may be visible over things with defined shapes as light hits the object from certain angles.

Single Rifle Optic Lens Covering Versus Multi-Coating

Different optic lenses can even have various finishings applied to them. All lenses generally have at least some kind of treatment or coating applied to them prior to being used in a rifle scope or optic assembly. This is since the lens isn’t just a raw piece of glass. It is part of the finely tuned optic. It requires a coating to be applied to it so that the lens will be optimally usable in lots of types of environments, degrees of light (full VS shaded), and other shooting conditions.

This lens treatment can safeguard the lens from scratches while decreasing 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 on the scope maker and how much you paid for it.

Some scope producers similarly make it a point to specify if their optic lenses are coated or “multi” covered. Being “much better” depends on the producer’s lens treatment innovation and the quality of materials used in building the rifle scope.

Anti-water Lens Finishing

Water on a lens does not help with maintaining a clear sight picture through a scope at all. Many top of the line and military grade scope makers will coat their lenses with a hydrophilic or hydrophobic finishing.

Scope Installation Options

Mounting approaches for scopes can be found in a couple of options. There are the standard scope rings which are separately mounted to the scope and one-piece mounts which cradle the scope. These different kinds of mounts also generally can be found in quick release versions which use throw levers which allow rifle shooters to rapidly mount and remove the scope.

Rifle Optic Mounts with Hex Key Rings

Standard, clamp style mounting scope rings use hex head screws to position to the flattop design Picatinny scope mounting rails on rifles. These kinds of scope mounts use double detached rings to support the optic, and are usually constructed from 7075 T6 billet aluminum which are developed for far away precision shooting. This kind of scope mount is great for rifle systems which are in need of a resilient, unfailing mount which will not change no matter how much the scope is moved or abuse the rifle takes. These are the type of mounts you should have for a faithful optics system on a far away scouting or competition long gun that will almost never need to be changed or recalibrated. Blue 242 Loctite threadlocker can also be used on the mount screws to keep the hex screws from wiggling out after they are mounted securely in position. An example of these rings are the 30mm type from Vortex Optics. The set usually costs around $200 USD

Quick-Release Cantilever Rifle Optic Rings

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 switched out if they all use a similar style mount. These types of mounts are convenient 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 several rifles.

What to Know About Glass Tube Sealing and Gas Purging

Wetness inside your rifle glass can wreck a day on the range and your expensive optic by resulting in fogging and making residue within the scope’s tube. Most scopes protect against moisture from going into the scope tube with a system of sealing O-rings which are water resistant. Typically, these scopes can be immersed beneath 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be ample moisture content avoidance for standard use rifles for hunting and sporting purposes, unless you anticipate taking your rifle aboard a watercraft and are worried about the optic still functioning if it is submerged in water and you can still salvage the rifle.

Gas Purged Rifle Optic Tubes

Another element of preventing the buildup of wetness within the rifle scope’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 changes and pressure distinctions from the outside environment which could potentially enable water vapor to seep 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.