Description
Rifle Scope Product Details
Kalinka Optics POSP 6×42 1000m Rangefinder, SVD
POSP 6×42 Rifle Scope 1000 Meter Rangefinder, SVD Version. The military reticles have an extremely effective and useful height-based rangefinder for dual use, with graduated scales for both standing and prone figure estimation. The 1000 meter Dragunov height based gradient (choke style) rangefinder has extended distance inverted chevrons providing aiming points for 1000, 1100, and 1200 meters. Since the range calibrations are measured in equal amounts of MOA, all versions of the POSP can be used effectively with any caliber of weapon. They are particularly effective for .308 caliber weapons which require longer range reticles to make full use of their capabilities. The POSP features a red illuminated reticle which allows you to make perfect kill shots in dusk conditions. POSP’s feature professionally ground, crystal clear optics, nitrogen filling to prevent lens fogging, and larger diameter tubes for improved light gathering under the most severe conditions. It is waterproof and can be used in any climate condition. It comes with a high quality mil-spec finish and rubber lens cap, eye piece, and nylon carrying case.The SVD/SKS clamp will fit any of these rifles with the standard side rail: SVD, SKS, NDM-96, Russian Tigr, Romak-3, SSG-97,PSL rifles and many more.
Rifle Scope Product Features
it is waterproof and can be used in any climate condition
The military reticles have an extremely effective and useful height-based rangefinder for dual use, with graduated scales for both standing and prone figure estimation.
The POSP features a red illuminated reticle which allows you to make perfect kill shots in dusk conditions.
POSP’s feature professionally ground, crystal clear optics, nitrogen filling to prevent lens fogging, and larger diameter tubes for improved light gathering under the most severe conditions.
Since the range calibrations are measured in equal amounts of MOA, all versions of the POSP can be used effectively with any caliber of weapon
About the Kalinka Optics Scope Maker
Kalinka Optics is a premium supplier for firearm scopes, optics, mounting solutions, and other accessories used for guns like rifles and long guns. They create and build their scopes, mounts, and related products working with building materials which are long lasting and resilient. This includes the Kalinka Optics POSP 6×42 1000m Rangefinder, SVD by Kalinka Optics. For additional shooting items, visit their site.
Rifle Optic Info
Rifle scopes permit you to specifically aim a rifle at different targets by aligning your eye with the target at range. They accomplish this through magnification by utilizing a set of lenses inside the scope. The scope’s alignment can be adapted for consideration of many environmental considerations like wind and elevation decreases to make up for bullet drop.
The scope’s function is to understand precisely where the bullet will land based upon the sight picture you are seeing via the scope as you line up the scope’s crosshair or reticle with the intended point of impact. Most modern rifle optics have around eleven parts which are arranged inside and on the exterior of the scope. These scope parts include the rifle scope’s body, lenses, elevation dials, objective focus rings, and other parts. See all eleven parts of a rifle scope.
The Types of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Deciding upon the perfect type of rifle optic is based on what type of shooting you plan on doing.
First Focal Plane Scopes
Focal plane scopes (FFP) include the reticle in front of the magnification lens. These kinds of scopes are beneficial for:
- Quick acquisition, far away kinds of shooting
- Shooting situations where calculations are small
- Experienced shooters who recognize their target “hold over” as well as “lead” equations for their firearm
- Shooters who don’t mind the reticle is bigger and uses up more visual eyesight space than a SFP reticle
About Second Focal Plane Scopes
Second focal plane scopes (SFP) come with the reticle to the rear of the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Far away kinds of shooting where shooters have more time to make ballistic computations
- Shooting where most shots happen within shorter proximities and ranges
- Shooters who choose a clearer optic sight picture with less area used up by the bigger FFP reticle
Optic Magnification
The quantity of zoom a scope supplies is determined 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.
Fixed Power Lens Optics
A single power rifle scope or optic comes with a magnification 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 type of scope can not change given that it is a fixed power optic.
Adjustable Power Lens Glass Info
Variable power rifle scopes can be adjusted between magnification increments. It will list the magnification level in a format such as 2-10×32. These numbers imply the magnification of the scope could be adjusted in between 2x and 10x power. This also involves the powers in-between 2 and 10. The power manipulation is accomplished by employing the power ring component of the scope near the back of the scope by the eye bell.
Power Levels and Range
Here are some recommended scope powers and the ranges where they may be successfully used. Bear in mind that high magnification optics will not be as efficient as lower powered glass since increased magnification can be a detractor. The same applies to extended distances where the shooter needs enough power to see where to properly aim the rifle.
About Scope Lens Finishes
All cutting-edge rifle scope lenses are coated. Lens covering can be a vital aspect of a rifle’s setup when looking into high end rifle optics and scope systems.
About Lens Coatings – HD Versus ED
Some rifle scope companies even use “HD” or high-definition lense coatings that take advantage of various procedures, aspects, polarizations, and chemicals to enhance numerous color ranges and viewable target visibility through the lens. This high-definition coating is commonly used with higher density lens glass which lowers light’s ability to refract by means of the lens glass. Some scope makers use “HD” to describe “ED” signifying extra-low dispersion glass. ED deals with how colors are represented on the chroma spectrum and the chromatic aberration or deviance which is similarly called color distortion or fringing. Chromatic aberration can be visible around objects with defined shapes as light hits the item from various angles.
Rifle Scope Lens Single Covering Versus Multi-Coating
Various scope lenses can also have different coatings applied to them. All lenses normally have at least some kind of treatment or covering applied to them prior to being used in a rifle scope or optic. This is since the lens isn’t just a raw piece of glass. It is part of the carefully tuned optic. It requires a coating to be applied to it so that the lens will be optimally functional in numerous kinds of environments, degrees of sunshine (full VS shade), and other shooting conditions.
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 advantageous things experienced in the shooting environment while sighting in with the optic. The quality of a single covered lens depends upon the scope maker and how much you paid for it. Both the manufacturer and amount 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. This indicates the lens has had several treatments applied to the surfaces of the glass. If a lens receives several treatments, it can establish that a producer is taking several steps to combat different natural factors like an anti-glare finish, a scratch resistant anti-abrasion finishing, followed by a hydrophilic covering. This additionally does not always indicate the multi-coated lens will perform much better than a single coated lens. Being “much better” hinges on the manufacturer’s lens treatment innovation and the quality of materials used in constructing the rifle glass.
Anti-water Scope Lens Finish
Water on a scope lens does not support maintaining a clear sight picture through an optic whatsoever. Numerous top of the line or high-end scope manufacturers will coat their lenses with a hydrophobic or hydrophilic finishing. The Steiner Optics Nano-Protection is a fine example of this sort of treatment. It deals with the exterior of the Steiner glass lens so the water molecules can not bind to it or create surface tension. The result is that the water beads roll off of the scope to preserve a clear, water free sight picture.
Optic Installation Alternatives
Mounting options for scopes are available in a few options. There are the basic scope rings which are individually installed to the optic and one-piece scope mounts which cradle the scope. These various kinds of mounts also usually are made in quick release variations which use manual levers which permit rifle operators to rapidly mount and remove the scopes.
Hex Key Glass Rings
Basic, clamp-on style mounting optic rings use hex head screws to position to the flattop design Picatinny scope mount rails on the tops of rifles. These styles of scope mounts use double separate rings to support the optic, and are normally made from 7075 T6 billet aluminum which are designed for far away accuracy shooting. This form of scope mount is very good for rifles which need a long lasting, rock solid mount which will not change regardless of how much the scope is moved about or jarring the rifle takes. These are the type of mounts you really want to have for a specialized optics setup on a long distance hunting or hard target interdiction firearm which will almost never need to be altered or recalibrated. Blue 242 Loctite threadlocker can also be used on the mount’s screws to stop the hex screw threads from backing out after they are installed safely in place. An example of these mounting rings are the 30mm type from Vortex Optics. The set normally costs around $200 USD
Rifle Scope Mounts with Quick-Release Cantilever Rings
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 also be swapped out if they all use a compatible style mount. These types of mounts are handy 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 numerous rifles or are situationally focused.
Rifle Optic Tube Sealing and Gas Purging
Moisture inside your rifle scope can mess up a day on the range and your costly optic by triggering fogging and producing residue within the scope’s tube. A lot of scopes prevent humidity from getting in the optical tube with a system of sealing O-rings which are waterproof. Normally, these water-resistant scopes can be immersed within 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be sufficient wetness avoidance for basic use rifles for hunting and sporting purposes, unless you anticipate taking your rifle on your motorboat and are concerned about the scope still working if it is submerged in water and you can still rescue the rifle.
Rifle Optic Gas Purging
Another part of avoiding the buildup of wetness within the rifle optic tube is filling the tube with a gas like nitrogen. Given that this space is currently taken up by the gas, the scope is less impacted by climate alterations and pressure distinctions from the outside environment which could potentially enable water vapor to seep in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a good rifle scope to seek out.
