Description
Rifle Scope Product Details
Swift SRP674M Premier Riflescope, Matte
Swift Premier Waterproof 3-9×40 Riflescopes are designed to meet the high-performance requirements of the discerning hunter, delivering superior optics, quick target acquisition and dependable results. The Premier Waterproof 3-9×40 Rifle scopes by Swift is the result of years in research and development, the sole purpose of which has been to design the finest, most practical rifle scopes within the capability of modern technology. Offering maximum light transmission for greater target definition in various light conditions, as well as low-profile target turrets and accommodating quick-focus eye relief.
Rifle Scope Product Features
Quick focus eyepiece
Light Amplifying Optical Coating – Up to 96% Greater Light Transmission
Self Centering Reticle
Waterproof, Fog proof and Shock Proof
Parallax Free at 100 yards
About the Swift Sport Optics Manufacturer
Swift Sport Optics is a premium maker for long gun scopes, optics, mounting solutions, and other components used for guns like rifles and long guns. They design and build their mounts and related products by applying materials which are long lasting and durable. This includes the Swift SRP674M Premier Riflescope, Matte by Swift Sport Optics. For more shooting items, visit their site.
What You Need to Know About Rifle Optics
Rifle scopes permit you to exactly align a rifle at various targets by aligning your eye with the target at range. They do this through magnifying the target using a series of lenses within the scope. The scope’s alignment can be adjusted to take into account many natural elements like wind and elevation decreases to make up for bullet drop.
The scope’s purpose is to help shooters understand exactly where the bullet will hit based on the sight picture you are viewing with the optic as you line up the scope’s crosshair or reticle with the intended point of impact. A lot of contemporary rifle scopes and optics have around eleven parts which are arranged internally and on the exterior of the scope body. These optic pieces include the rifle scope’s body, lenses, windage turrets, focus rings, and other parts. See all eleven parts of a rifle optical system.
About Scope Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” style of scopes. The style of focal plane a scope has establishes where the reticle or crosshair lies in relation to the optic’s magnifying adjustments. It literally indicates the reticle is behind or ahead of the magnification lens of the scope. Deciding on the very best kind of rifle optic depends on what kind of shooting or hunting you plan on undertaking.
Info About First Focal Plane Optics
First focal plane optics (FFP) come with the reticle in front of the magnifying lens. This induces the reticle to increase in size based on the level of magnification being used. The outcome is that the reticle measurements are the same at the amplified range as they are at the non magnified range. For example, one tick on a mil-dot reticle at 100 yards without any “zoom” is still the exact same tick at one hundred yards using 5x “zoom”. These types of scopes work for:
- Quick acquisition, long distance types of shooting
- Shooting circumstances where calculations are low
- Experienced shooters who understand their target “hold over” as well as “lead” ratios for their rifles
- Shooters who don’t mind the reticle is bigger and takes up more visual eyesight space than a SFP reticle
Info About Second Focal Plane Scopes
Second focal plane optics (SFP) include the reticle to the rear of the magnifying lens. This induces the reticle to remain at the exact same scale in relation to the amount of magnification being used. The effect is that the reticle dimensions alter based on the magnification used to shoot over longer ranges considering the markings represent different increments which vary with the zoom. In the FFP example with the SFP optic, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick reticle measurement. These types of glass work for:
- Far away types of shooting where shooters have more time to make ballistic calculations
- Shooting where most of the shots take place within much shorter ranges and distances
- Shooters who desire a clearer optic sight picture with less space taken up by the larger sized FFP reticle
Details on Rifle Scope Magnification
The quantity of scope magnification you require depends on the style of shooting you want to do. Nearly every type of rifle scope gives some level of magnification. The quantity of zoom a scope offers is identified by the dimension, density, and curvatures of the lenses inside of the rifle scope. The magnification level 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 typically be seen by human eyes.
Single Power Lens Rifle Glass Facts
A single power rifle optic uses a magnification number designator like 4×32. This means the zoom power of the scope is 4x power while the objective lens is 32mm. The zoom of this type of scope can not fluctuate because it is set from the factory.
Variable Power Lens Rifle Glass
Variable power rifle scopes can be adjusted between magnification increments. It will list the magnification degree in a configuration like 2-10×32. These numbers mean the zoom of the scope could be adjusted in between 2x and 10x power. This additionally includes the powers in-between 2 and 10. The power adaptation is achieved by applying the power ring part of the scope near the back of the scope by the eye bell.
The Power Level and Range of Optics
Here are some advised scope powers and the ranges where they could be successfully used. Bear in mind that high power scopes will not be as practical as lower powered optics and scopes since too much zoom can be a bad thing. The same idea applies to longer ranges where the shooter needs to have sufficient power to see precisely where to properly aim the rifle.
Info on Rifle Optic Lens Coverings
All current rifle scope and optic lenses are covered. Lens finish can be a significant aspect of a shooting system when considering high end rifle optics and scope setups.
HD Versus ED Lens Coatings
Some scope manufacturers will also use “HD” or high-def glass coverings that use different procedures, polarizations, chemicals, and aspects to enhance different colors and viewable target definition through the lens. This HD finish is commonly used with higher density glass which lowers light’s opportunity to refract by means of the lens glass. Some scope producers use “HD” to describe “ED” meaning extra-low dispersion glass. ED deals with how colors are presented on the chroma spectrum and the chromatic deviance or aberration which is also called color distortion or fringing. Chromatic aberration may be obvious around items with hard edges and shapes as light hits the item from various angles.
Single Glass Lens Covering Versus Multi-Coating
Various scope lenses can also have different finishings applied to them. All lenses normally have at least some kind of treatment or coating applied to them prior to being used in a rifle scope or optic assembly. Due to the fact that the lens isn’t just a raw piece of glass, they require performance enhancing coatings. 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 many types 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 protect the lens from scratches while reducing glare and other less useful things experienced in the shooting environment while sighting in with the optic. The quality of a single layered lens depends upon the scope maker and how much money you paid for it. Both the manufacturer and amount are indications of the lens quality.
Some scope producers also make it a point to specify if their optic lenses are layered or “multi” covered. This means the lens has had multiple treatments applied to the surfaces. If a lens gets several treatments, it can indicate that a producer is taking several steps to fight various natural factors like an anti-glare coating, a scratch resistant anti-abrasion finishing, followed by a hydrophilic coating. This also does not necessarily indicate the multi-coated lens is better than a single coated lens. Being “much better” depends upon the producer’s lens treatment techniques and the quality of materials used in constructing the rifle scope.
Hydrophobic Scope Lens Finish
Water on a scope’s lens doesn’t assist with maintaining a clear sight picture through an optic at all. Many top of the line and high-end scope makers will coat their lenses with a hydrophobic or hydrophilic coating. The Steiner Optics Nano-Protection is a fine example of this type of treatment. It provides protection for the exterior surfaces of the Steiner optic lens so the H2O molecules can not bind to it or produce surface tension. The outcome is that the water beads move off of the scope to keep a clear, water free sight picture.
Alternatives for Mounting Rifle Scopes on Long Guns
Installing approaches for scopes come in a few options. There are the standard scope rings which are separately installed to the scope and one-piece mounts which cradle the scope. These various kinds of mounts also generally can be found in quick release versions which use toss levers which enable rifle shooters to quickly mount and dismount the glass.
Hex Key Rifle Scope Rings
Standard, clamp style mounting scope rings use hex head screws to position to the flattop style Picatinny scope mount rails on the tops of rifles. These styles of scope mounts use two separate rings to support the scope, and are usually constructed from 7075 T6 billet aluminum or similar materials which are created for long distance accuracy shooting. This form of scope mount is good for rifle systems which need a long lasting, unfailing mount which will not change regardless of just 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 dedicated scope system on a reach out and touch someone scouting or competition firearm which will rarely need to be modified or recalibrated. Blue 242 Loctite threadlocker can also be used on screws to prevent the hex screws from wiggling out after they are installed tightly in position. An example of these rings are the 30mm style from the Vortex Optics company. The set usually costs around $200 USD
Glass Mounts with Quick-Release Cantilever Rings
These kinds of quick-release rifle scope mounts can be used to quickly attach and detach a scope from a rifle. Multiple scopes can also be switched out if they all use a complementary style mount. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers attach firmly to a flat top design Picatinny rail. This permits the scope to be sighted in while on the rifle, removed from the rifle, and remounted while keeping precision. These kinds of mounts come in beneficial for rifles which are moved a lot, to take off the scope from the rifle for protection, or for sight systems which are used between several rifles. An example of this mount style is the 30mm mount designed by Vortex Optics. It typically costs around $250 USD
Optic Tube Sealing and Gas Purging
Moisture inside your rifle scope can ruin a day of shooting and your expensive optic by triggering fogging and producing residue inside of the scope tube. Most scopes prevent moisture from going into the scope tube with a system of sealing O-rings which are waterproof.
Gas Purged Rifle Scope Tubes
Another part of avoiding the buildup of wetness within the rifle scope’s tube is filling the tube with a gas like nitrogen. Given that this space is already taken up by the gas, the scope is less impacted by temp shifts and pressure differences from the outside environment which could possibly enable 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.
