Last update on February 2, 2023 // Source: Amazon API
Rifle Scope Product Details
SIGHTRON SIII SS 624×50 LR FFP/MOA 30mm Rifle Scope
Sightron SIIISS 6-24x50mm LR FFP/MH Features: – Fast Focus Eyeball: Allows for quick and easy adjustments when in the field. Diopter adjustment ranges from -2.0 to +1.0 settings. – Side Focus System: Side Parallax focus is available on all SIIB SS models and SIII SS LR Series Riflescopes. – SIII Series One-Piece Main-Tube: All scopes in the SIII series feature a 30mm one-piece Main-Tube made from high quality Aircraft aluminum. – Exact rack: This scope features Sightron’ s unique Exact rack wind age and elevation adjustment system. – All Weather Construction: This scope features the ultimate in all weather construction. They are waterproof, nitrogen filled and provide a lifetime of internal fog protection for inclement weather. – ZACT-7 Revcoat Multi-Coating: All Sightron SII Big Sky Series Riflescopes feature ZACT-7 seven layer multi-coating with precision ground glass. Specifications: – Model Name: SIIISS624X50LRFFPMH – Magnification: 6-24X – Object Diameter: 50mm – Eye Relief: 3.6-3.8 – Reticle Type: MH – Click Value: .1 MRAD – Field of View: 16.1-3.9 – Overall Length: 14.96″ Accessories Include: Sunshade, Torn 20 Allen Key, Lens Caps, Lens Cloth, Instruction Manual.
Rifle Scope Product Features
Object Diameter: 50mm
Eye Relief: 3.6-3.8
ZACT-7 seven layer multi-coating with precision ground glass
About the SIGHTRON Manufacturer
SIGHTRON is a premium maker for firearm scopes, optics, mounts, and other add-ons used for guns like rifles and long guns. They design and build their products using materials which are durable and long lasting. This includes the SIGHTRON SIII SS 624×50 LR FFP/MOA 30mm Rifle Scope by SIGHTRON. For additional shooting products, visit their site.
All About Rifle Scopes
Rifle scopes allow you to specifically aim 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 set of lenses within the scope. The scope’s positioning can be adjusted to account for varied ecological factors like wind and elevation increases or decreases to account for bullet drop.
The scope’s function is to help the shooter understand precisely where the bullet will hit based upon the sight picture you are seeing via the scope as you line up the scope’s crosshair or reticle with the intended target. Many modern-day rifle optics have about eleven parts which are found internally and outside of the optic. These optic pieces consist of the rifle scope’s body, lenses, windage turrets, objective focus rings, and other parts. See all eleven parts of a rifle optical system.
The Types of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Deciding on the perfect type of rifle glass depends on what type of shooting you plan on doing.
First Focal Plane Scope Facts
Focal plane scopes (FFP) come with the reticle in front of the zoom lens. This induces the reticle to increase in size based on the extent of zoom being used. The benefit is that the reticle measurements are the same at the amplified range as they are at the non magnified range. As an example, one tick on a mil-dot reticle at 100 yards without any “zoom” is still the very same tick at one hundred yards with 5x “zoom”. These types of scopes work for:
- Quick acquisition, long distance kinds of shooting
- Shooting circumstances where estimations are minor
- Experienced shooters who recognize their target “hold over” plus “lead” equations for their long gun
- Shooters who do not mind the reticle is bigger and uses up more visual eyesight room than a SFP reticle
About Second Focal Plane Scopes
Second focal plane optics (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 reticle measurement would be 1/5th of the non “zoom” tick.
- Long distance types of shooting where shooters have additional time to make ballistic estimations
- Shooting where most shots take place within shorter spaces and ranges
- Shooters who desire a clearer optic picture with less room taken up by the larger sized FFP reticle
Zoom for Rifle Glass
The quantity of magnification 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 Single Power Lens Rifle Optic Facts
A single power rifle optic will have a zoom number designator like 4×32. This indicates the magnification power of the scope is 4x power and the objective lens is 32mm. The magnification of this type of optic can not fluctuate considering that it is a set power scope.
Variable Power Lens Rifle Glass Facts
Variable power rifle scopes have adjustable power. It will list the zoom degree in a format such as 2-10×32. These numbers suggest the zoom of the scope could be set between 2x and 10x power. This additionally incorporates the power levels in-between 2 and 10. The power adjustment is accomplished using the power ring part of the scope near the back of the scope by the eye bell piece.
Rifle Scope Power Level and Range Correlation
Here are some recommended scope powers and the distances where they can be efficiently used. High power rifle scope glass will not be as beneficial as lower powered glass considering too much zoom can be a bad thing. The exact same idea relates to longer ranges where the shooter needs increased power to see exactly where to properly aim the rifle.
Details on Scope Lens Finishes
All current rifle scope lenses are covered. Lens finish is a significant element of a shooting platform when looking at high end rifle optics and scope systems.
HD Versus ED Optic Lens Coatings
Some scope brands also use “HD” or high-definition lens finishes which use various techniques, chemicals, polarizations, and aspects to draw out different colors and viewable definition through the lens. Some scope makers use “HD” to refer to “ED” meaning extra-low dispersion glass.
Single Scope Lens Finish Versus Multi-Coating
Various optic lenses can likewise have various coverings applied to them. All lenses normally have at least some type of treatment or covering applied to them prior to being used in a rifle scope or optic.
This lens treatment can protect the lens from scratches while lowering 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 manufacturer and how much you paid for it.
Some scope makers similarly make it a point to define if their optic lenses are covered or “multi” coated. Being “better” depends on the manufacturer’s lens treatment technology and the quality of products used in developing the rifle scope.
Details on Hydrophobic Finishing
Water on a lens doesn’t assist with maintaining a clear sight picture through a scope at all. Lots of top of the line and high-end scope makers will coat their lenses with a hydrophilic or hydrophobic coating.
Choices for Installing Scopes on Long Guns
Installing solutions for scopes can be found in a few choices. There are the basic scope rings which are individually installed to the optic and one-piece scope mounts which cradle the scope. These various types of mounts also typically come in quick release versions which use manual levers which permit rifle shooters to quickly install and remove the scopes.
Hex Key Glass Rings
Basic, clamp design mounting optic rings use hex head screws to fix to the flattop design Picatinny scope mount rails on rifles. These varieties of scope mounts use a pair of independent rings to support the optic, and are made from 7075 T6 billet aluminum which are developed for long distance precision shooting. This form of scope mount is great for rifle systems which need a durable, hard use mount which will not shift despite how much the scope is moved about or jarring the rifle takes. These are the design of mounts you really want to have for a dedicated optics system on a reach out and touch someone hunting or competition rifle that will pretty much never need to be modified or adjusted. Blue 242 Loctite threadlocker can also be used on the screws to keep the hex screw threads 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 generally costs around $200 USD
Quick-Release Cantilever Rifle Scope Rings
These kinds of quick-release rifle scope mounts can be used to quickly detach a scope from a rifle and reattach it to a different rifle. If they all use a similar design mount, several scopes can also be switched out in the field. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers attach tightly to a flat top type Picatinny rail. This lets the scope to be sighted in while on the rifle, removed from the rifle, and remounted while keeping precision. These types of mounts come in handy for rifles which are hauled around a lot, to remove the glass from the rifle for protection, or for aiming systems which are employed between numerous rifles. An example of this mount style is the 30mm mount from Vortex Optics. It typically costs around $250 USD
Rifle Scope Tube Sealing and Gas Purging
Wetness inside your rifle scope can wreck a day on the range and your pricey optic by resulting in fogging and producing residue inside of the scope’s tube. Many scopes protect against humidity from going into the optical tube with a system of sealing O-rings which are waterproof. Normally, these optics can be immersed within 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be sufficient moisture content prevention for conventional use rifles for hunting and sporting purposes, unless you plan on taking your rifle on boats and are worried about the scope still performing if it goes over the side and you can still retrieve the firearm.
Rifle Scope Gas Purging
Another component of preventing the accumulation of moisture inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Considering that this space is currently occupied by the gas, the scope is less affected by condition shifts and pressure differences from the outdoor environment which may possibly enable water vapor to leak in around the seals to fill the void which would otherwise exist. These are good qualities of a good rifle scope to seek out.