Description
Rifle Scope Product Details
Swift SRP649M Premier Riflescope, Matte
Swift 4-12x50mm Premier Riflescope SRP649M with a maximum effective objective diameter of 50mm is especially effective in poor light conditions – yet its power range of 4 to 12 makes it useful under most hunting conditions. This hard anodized, fog-proof instrument is equipped with self-centering Quadraplex reticle and Speed Focus; which gives quick adjustment at any power setting.
Rifle Scope Product Features
Great power ranger for most hunting conditions
Objective diameter of 50mm
Hard anodized, fog proof instrument
Speed Focus
Self Centering quadruples reticle
SWIFT SRP649M Premier Riflescope
Swift has added a coil spring to the SRP line of products. The coil springs give the scope more protection against heavy recoil rifles. Our coil spring system was made popular in the Sur-Lok series, and was simplified to work with all SRP models. Now you not only get amazing clarity, but also the recoil protection you need.
SWIFT SRP649M Premier Riflescope
4-12×50 CS, Matte
Extra light gathering 50mm objective and 4-12x magnification. Ideal for woods, prairie or mountain hunting. A top seller among loyal customers
USA Made BaK7 Schott Glass
Light Amplifying Optics Coating – Up to 96% Greater Light Transmission
Fully Multi-coated Optics
Eye Relief: 3.5/3.2 in, 88.9/81.3mm
FOV @ 1000 yds/m: 24.5ft/8.2m, 8.4ft/2.8m
Length: 13.8in/35.1cm
Weight: 15.8oz/448g
Full Saddle Construction
1 inch Aircraft Aluminum Tube
Re-enforced Reticle Mounts
Quick-focus Eyepiece
Parallax Free at 100 yards
Target Turret, Windage and Elevation
1/4 inch Click MOA
Self-centering Reticle
Complete with Quick-thread Sunshade and Objective Dust Covers
Waterproof, Fogproof and Shockproof
Swift Lifetime Warranty
About the Swift Sport Optics Brand
Swift Sport Optics is a premium supplier for rifle scopes, optics, mounting solutions, and other components used for guns like rifles and long guns. They innovate and supply their scopes, mounts, and related products using elements which are resilient and long lasting. This includes the Swift SRP649M Premier Riflescope, Matte by Swift Sport Optics. For additional shooting goods, visit their website.
What You Need to Know About Glass
Rifle scopes allow you to exactly align a rifle at various targets by lining up your eye with the target at range. They do this through magnification by making use of a series of lenses inside the scope. The scope’s alignment can be dialed in for consideration of numerous environmental things like wind speed and elevation decreases to make up for bullet drop.
The scope’s purpose is to help shooters understand precisely where the bullet will hit based on the sight picture you are seeing through the optic as you align the scope’s crosshair or reticle with the intended target. Most modern rifle scopes and optics have about eleven parts which are arranged within and on the exterior of the scope. These scope parts consist of the rifle scope’s body, lenses, windage and elevation turrets, objective focus rings, and other elements. Learn about the eleven parts of scopes.
Rifle Glass Types
Rifle scopes can be either “first focal plane” or “second focal plane” type of optics. Choosing the best type of rifle glass is based around what type of shooting you plan to do.
First Focal Plane Optic Details
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. These types of scopes are useful for:
- Quick acquisition, long distance kinds of shooting
- Shooting circumstances where estimations are minor
- Experienced shooters who understand their target “hold over” as well as “lead” relationships for their long gun
- Shooters who do not mind the reticle is enlarged and occupies more visual eyesight space than a SFP reticle
Second Focal Plane Scopes
Second focal plane scopes (SFP) feature the reticle to the rear of the zoom lens. In the FFP example with the SFP scope, the 5x “zoom” 100 yard tick measurement would be 1/5th of the non “zoom” tick reticle measurement.
- Far away forms of shooting where shooters have extra time to make ballistic calculations
- Shooting where most shots occur within much shorter ranges and spaces
- Shooters who like a clearer optic sight picture without area used up by the bigger FFP reticle
Zoom for Optics
The quantity of scope magnification you need on your glass depends on the style of shooting you would like to do. Pretty much every kind of rifle scope supplies some degree of zoom. The amount of magnification a scope provides is determined by the diameter, thickness, and curvatures of the lens glass within the rifle scope. The magnification of the scope is the “power” of the opic. This signifies what the shooter is checking out through the scope is magnified times the power aspect of what can normally be seen by human eyes.
Fixed Power Lens Rifle Glass
A single power rifle scope or optic 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 zoom of this type of optic can not adjust considering that it is fixed.
Variable Power Lens Rifle Optics
Variable power rifle scopes can be tweaked between magnified settings. The power adjustment is performed by making use of the power ring part of the scope near the back of the scope by the eye bell.
Power and Range Correlations
Here are some advised scope power levels and the ranges where they could be efficiently used. Highly magnified scopes will not be as efficient as lower magnification glass due to the fact that too much magnification can be a bad thing. The exact same idea relates to extended ranges where the shooter needs increased power to see where to best aim the rifle at the target.
Rifle Glass Lens Coating
All modern rifle optic lenses are covered in special coatings. There are various types and qualities of glass finishings. Lens coating can be a crucial aspect of a rifle when thinking about high end rifle optics and scope units. The lenses are among the most crucial pieces of the glass since they are what your eye looks through while sighting a rifle in on the point of impact. The finishing on the lenses safeguards the lens surface and also assists with anti glare from refracted daylight and color discernibility.
ED Versus HD Rifle Glass
Some scope manufacturers also use “HD” or high-def lense coatings that use various processes, polarizations, chemicals, and components to extract a wide range of color ranges and viewable target visibility through the lens. This high-definition finish is typically used with more costly, high density glass which decreases light’s opportunity to refract by means of the lens glass. Some scope makers use “HD” to refer to “ED” meaning extra-low dispersion glass. ED handles how certain colors are presented on the chroma spectrum and the chromatic aberration or deviance which is also called color distortion or fringing. Chromatic aberration is often noticeable over objects with defined shapes as light hits the item from particular angles.
Rifle Glass Lens Single Finishing Versus Multi-Coating
Various scope lenses can even have different coatings applied to them. All lenses generally have at least some type of treatment or finishing applied to them before being used in a rifle scope or optic. Because the lens isn’t simply 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 the lens will be efficiently usable in numerous types of environments, degrees of light (full light VS shade), and other shooting conditions.
This lens treatment can safeguard the lens from scratches while minimizing glare and other less beneficial things experienced in the shooting environment while sighting in with the scope. The quality of a single covered lens depends on the scope producer and how much you paid for it.
Some scope manufacturers also make it a point to define if their optic lenses are layered or “multi” coated. Being “better” depends on the producer’s lens treatment technology and the quality of materials used in constructing the rifle scope.
Details on Anti-water Coating
Water on a lens doesn’t help with keeping a clear sight picture through a scope at all. Many top of the line and high-end optic companies will coat their lenses with a hydrophobic or hydrophilic finishing.
Choices for Mounting Glass on Long Guns
Mounting solutions for scopes are available in a couple of options. There are the basic scope rings which are separately installed to the scope and one-piece mounts which cradle the scope. These different types of mounts also normally are made in quick release versions which use manual levers which enable rifle operators to rapidly mount and dismount the scope.
Hex Key Rifle Scope Rings
Standard, clamp style mounting scope rings use hex head screws to mount to the flattop design Picatinny scope installation 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 are developed for long range accuracy shooting. This type of scope mount is wonderful for rifles which require a durable, rock solid mount which will not move no matter how much the scope is moved or abused.
Quick-Release Cantilever Rifle Scope Rings
These kinds of quick-release rifle scope mounts can be used to rapidly connect and detach a scope from a rifle. If they all use a comparable design mount, a number of scopes can also be swapped out on the range. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers connect tightly to a flat top type Picatinny rail. This permits the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while keeping the original sighting settings. These kinds of mounts are useful and practical for shooting platforms which are hauled around a lot, to remove the scope from the rifle for protection, or for scopes which are utilized in between multiple rifles. An example of this mount type is the 30mm mount from the Vortex Optics manufacturer. It generally costs around $250 USD
About Rifle Optic Tube Sealing and Gas Purging
Wetness inside your rifle scope can wreck a day on the range and your pricey optic by causing fogging and developing residue inside of the scope’s tube. The majority of scopes protect against wetness from entering the optical tube with a system of sealing O-rings which are waterproof. Normally, these optics can be submerged under 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be plenty of moisture prevention for basic use rifles, unless you plan on taking your rifle on your motorboat and are concerned about the optic still performing if it falls overboard and you can still rescue the firearm.
Gas Purged Scope Tubes
Another element of avoiding the accumulation of wetness within the rifle scope’s tube is filling the tube with a gas like nitrogen. Because this area is already taken up by the gas, the optic is less influenced by temp shifts and pressure variations from the outdoor environment which might potentially permit water vapor to leak 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.
