Description
Rifle Scope Product Details
Swift SRP686M Premier Airgun-Rated Riflescope, Matte
Swift 6.5-20x44mm High Recoil Scope SRP686M was designed for high recoil spring air rifles. At 16″ in length, it should fit most of the spring rifles and the level of recoil should not be an issue. So for any shooter looking to buy a tough scope in the medium price point range, this scope is a good place to start.
Rifle Scope Product Features
6.5-20x44mm High Recoil Scope
Water-proof
Multi Coated
Air gun-rated
Speed Focus
Swift SRP686M Specifications
Objective Diameter: 44mm
FOV @ 1000 yds/m: 19ft/6.3m, 6.5ft/2/2m
Eye Relief: 2.7in/68.6mm
Length: 15.6in/39.6cm
Weight: 23.6oz
Lense Coatings: FMC
Prisms: BaK7 Schott
MOA: 1/4 in.
Reticle: Quadraplex
Waterproof/Fogproof: Yes
SWIFT SRP686M Premier Airgun-Rated Riflescope, Matte
6.5-20×44, Airgun-Rated
Great scope for both target and long-range shooting. Brass internal parts braced in both directions capable of withstanding magnumspring piston air rifles.
About the Swift Sport Optics Manufacturer
Swift Sport Optics is a premium company for firearm scopes, optics, mounting solutions, and other components used for firearms like rifles and long guns. They style and supply their scopes, mounts, and related products using materials which are long lasting and resilient. This includes the Swift SRP686M Premier Airgun-Rated Riflescope, Matte by Swift Sport Optics. For additional shooting items, visit their website.
What You Need to Know About Optics
Rifle scopes allow you to specifically align a rifle at different targets by aligning your eye with the target over a distance. They do this through magnification by utilizing a series of lenses within the scope. The scope’s positioning can be adjusted for the consideration of separate natural things like wind and elevation 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 viewing with the optic as you align the scope’s crosshair or reticle with the intended point of impact. Many modern rifle optics have around eleven parts which are located inside and on the exterior of the scope body. These parts include the rifle scope’s body, lenses, windage dials, focus rings, and other parts. Learn about the eleven parts of optics.
The Types of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The style of focal plane a scope has determines where the reticle or crosshair lies in relation to the scopes magnifying adjustments. It simply means the reticle is located behind or in front of the magnifying lens of the optic. Choosing the most effective style of rifle scope is based on what style of shooting or hunting you plan on doing.
First Focal Plane Scope Info
Focal plane scopes (FFP) feature the reticle in front of the magnifying lens. This induces the reticle to increase in size based upon the level of magnification being used. The result is that the reticle measurements are the same at the amplified range as they are at the non amplified distance. One tick on a mil-dot reticle at one hundred yards without “zoom” is still the very same tick at 100 yards by using 5x “zoom”. These kinds of scopes are useful for:
- Quick acquisition, far away types of shooting
- Shooting situations where computations are very little
- Experienced shooters who understand their aim point “hold over” and also “lead” correlations for their weapon
- Shooters who do not mind the reticle is bigger and occupies more visual eyesight room than a SFP reticle
Second Focal Plane Scopes
Second focal plane glass (SFP) feature the reticle behind the magnification lens. This causes the reticle to remain at the same dimensions in connection with the quantity of zoom being used. The end result is that the reticle dimensions evolve based on the magnification applied to shoot over longer ranges since the reticle markings represent different increments which change with the magnification level. In the FFP example with the SFP optic, the 5x “zoom” one hundred yard tick reticle measurement would be 1/5th of the non “zoom” tick reticle measurement. These styles of glass are convenient for:
- Far away types of shooting where shooters have additional time to make ballistic estimations
- Shooting where most of the shots take place within shorter proximities and ranges
- Shooters who would like a clearer optic picture with less room taken up by the enlarged FFP reticle
Ins and Outs of Glass Magnification
The extent of scope magnification you need on your optic is based on the style of shooting you intend to do. Pretty much every type of rifle glass provides some amount of zoom. The quantity of magnification a scope supplies is determined by the diameter, thickness, and curvatures of the lenses within the rifle optic. The zoom of the scope is the “power” of the glass. This implies what the shooter is checking out through the scope is amplified times the power factor of what can normally be seen by human eyes.
Info About Fixed Power Lens Glass
A single power rifle scope 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 magnification of this type of optic can not change since it is set from the factory.
Variable Power Lens Optics
Variable power rifle scopes have adjustable power. These types of scopes will list the zoom level in a configuration such as 2-10×32. These numbers indicate the magnification of the scope can be adjusted in between 2x and 10x power. This additionally involves the powers in-between 2 and 10. The power modification is accomplished by applying the power ring component of the scope near the back of the scope by the eye bell.
The Power and Range Correlation of Scopes
Here are some recommended scope powers and the distances where they could be efficiently used. Consider that high magnification optics and scopes will not be as effective as lower powered scope and optics since too much magnification can be a detractor. The exact same idea applies to extended distances where the shooter needs sufficient power to see precisely where to properly aim the rifle.
About Rifle Optic Lens Coatings
All modern-day rifle scope and optic lenses are covered. Lens covering is an essential element of a rifle system when looking at high end rifle optics and scope equipment.
HD Versus ED Optic Lens Coatings
Some scope suppliers also use “HD” or high-def lense finishings which apply different procedures, polarizations, components, and chemicals to extract numerous colors and viewable definition through the lens. This high-def coating is typically used with higher density lens glass which reduces light’s chance to refract through the lens glass. Some scope manufacturers use “HD” to refer to “ED” meaning extra-low dispersion glass. ED deals with how colors are represented on the chromatic spectrum and the chromatic aberration or deviance which is similarly called color distortion or fringing. Chromatic aberration may be visible around things with defined shapes as light hits the item from certain angles.
Single Finish Versus Multi-Coating for Optics
Various optic lenses can also have various finishings applied to them. All lenses usually have at least some type of treatment or finish applied to them before they are used in a rifle scope or optic.
This lens treatment can offer protection to the lens from scratches while minimizing glare and other less useful 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 makers similarly make it a point to define if their optic lenses are coated or “multi” covered. Being “better” depends on the manufacturer’s lens treatment technology and the quality of products used in building the rifle scope.
Hydrophobic Finish for Scopes
Water on a lens doesn’t improve retaining a clear sight picture through a scope in any way. Many top of the line or premium scope producers will coat their lenses with a hydrophilic or hydrophobic covering. The Steiner Optics Nano-Protection is a good example of this type of treatment. It treats the surface of the Steiner glass lens so the water molecules can not bind to it or produce surface tension. The outcome is that the water beads sheet off of the scope to keep a clear, water free sight picture.
Alternatives for Installing Rifle Glass on Firearms
Installing approaches for scopes are available in a few choices. There are the standard scope rings which are individually mounted to the scope and one-piece scope mounts which cradle the scope. These various kinds of mounts also normally come in quick release versions which use toss levers which enable rifle shooters to quickly mount and dismount the glass.
Hex Key Optic Rings
Normal, clamp design mounting scope rings use hex head screws to mount to the flattop style Picatinny scope installation rails on rifles. These types of scope mounts use two separate rings to support the optic, and are often made from 7075 T6 billet aluminum which are designed for long distance accuracy shooting. This type of scope install is wonderful for rifles which need a durable, sound mounting solution which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Rifle Glass Ring Mounting Solutions
These kinds of quick-release rifle scope mounts can be used to rapidly detach a scope from a rifle and reattach it to a different rifle. A wide range of scopes can also be swapped out if they all use a complementary style mount. The quick detach mount style is CNC machined from anodized 6061 T6 aluminum and the mounting levers connect firmly to a flat top style Picatinny rail. This permits the scope to be sighted in while on the rifle, removed from the rifle, and remounted back on the rifle while retaining accuracy. These types of mounts are useful and handy for rifles which are moved around a lot, to remove the optic from the rifle for protection, or for scopes which are employed between multiple rifles. An example of this mount style is the 30mm mount from the Vortex Optics brand. It typically costs around $250 USD
Sealing and Gas Purging for Glass Tubes
Wetness inside your rifle glass can mess up a day of shooting and your expensive optic by inducing fogging and producing residue inside of the scope tube. Most scopes protect against moisture from getting in the scope tube with a series of sealing O-rings which are waterproof. Normally, these water resistant optics can be immersed within 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be plenty of moisture content avoidance for common use rifles, unless you anticipate taking your rifle on a boat and are worried about the scope still performing if it goes over the side and you can still retrieve the rifle.
About Glass Tube Gas Purging
Another element of avoiding the buildup of moisture within the rifle optic tube is filling the tube with a gas like nitrogen. Because this space is currently taken up by the gas, the optic is less influenced by temperature alterations and pressure variations from the outside environment which might potentially allow water vapor to seep in around the seals to fill the vacuum which would otherwise exist. These are good qualities of a decent rifle scope to look for.
