Rifle Scope Product Details
Vector Optics Sagittarius 10-40X 56 First Focal Plane Rifle Scope with Illumination
Specifications Magnification 10-40x Objective Lens Diameter 56mm Ocular Lens Diameter 34mm Ocular Length 56mm Exit Pupil 1.4-5.6 mm Length 450mm (17.7 inch, without sunshade) Weight (net) 1.035KG (36.5 ounce) Eye Relief 81-102 mm (3.2-4.0”), long eye relief Field of View 2.5-10 (ftat100yds) Field of View 0.8-3.1 (Mat 100M) Field of View 0.48-1.90 (at100yds) Number of Lens 11 Parallax 0.125 Side Focus Range 12 Yard to unlimited Reticle Front Focal Plan Etched Mil-Dot Glass Evaluation Range 15 MOA Wind age Range: 15 MOA Battery CR2032 Optics Coating: Fully-Multi Coated to eliminate glare and maximize light transmission 5 levels green and red brightness side illumination system 30mm Hammer-forged Monotube Shock proof (1000g), water proof (at 300mm and 54 degree) and fog proof (Nitrogen Purged) High-durability aluminum alloy in black matt finish Feature 1/8 M.O.A direct high finger windage and elevation turrets adjustments with audible clicks for greater precision Fast focus eyepiece at ocular lens adjustment Includes: SCFF-04 First Focal Plane Scope, Weaver/Picatinny Mount, Battery, K9 Glass Flip-up Caps and 3 inch Sunshade.
Rifle Scope Product Features
About this item
Long Eye Relief, First Focal Plane Etched Glass Reticle
Advantage in Military, Law Enforcement and Hunting; Lifetime Warranty
Green and Red Illumination with 5 brightness levels
Top K9 glass Flip-up Caps, 3 inch Sunshade
30mm Monotube, Weaver/Picatinny mount
About the Vector Optics Brand
Vector Optics is a premium company for weapon scopes, optics, mounting solutions, and other components used for guns like rifles and long guns. They design and build their mounts, scopes, and related products using materials which are long lasting and resilient. This includes the Vector Optics Sagittarius 10-40X 56 First Focal Plane Rifle Scope with Illumination by Vector Optics. For additional shooting items, visit their site.
Information About Optics
Rifle scopes enable you to exactly aim a rifle at different targets by lining up your eye with the target over a range. They do this through zoom by utilizing a series of lenses inside the scope. The scope’s positioning can be adjusted for consideration of different natural considerations like wind and elevation to make up for bullet drop.
The scope’s purpose is to understand exactly where the bullet will hit based on the sight picture you are seeing with the optic as you line up the scope’s crosshair or reticle with the intended target. Most modern-day rifle scopes and optics have around eleven parts which are found internally and outside of the scope body. These optic pieces include the rifle scope’s body, lenses, modification turrets, objective focus rings, and other parts. Learn about the eleven parts of rifle optics.
The Varieties of Rifle Scopes
Rifle scopes can be either “first focal plane” or “second focal plane” kind of scopes. The kind of focal plane an optic has establishes where the reticle or crosshair lies in relation to the optic’s magnifying adjustments. It simply suggests the reticle is located behind or ahead of the magnification lens of the scope. Looking for the most reliable type of rifle optic depends on what style of shooting you intend on doing.
First Focal Plane Glass
Focal plane scopes (FFP) come with the reticle in front of the zoom lens. This triggers the reticle to increase in size based on the amount of zoom being used. The benefit is that the reticle measurements are the same at the magnified distance as they are at the non magnified range. One tick on a mil-dot reticle at one hundred yards without “zoom” is still the very same tick at one hundred yards with 5x “zoom”. These kinds of scopes are valuable for:
- Quick acquisition, long distance kinds of shooting
- Shooting situations where calculations are small
- Experienced shooters who have an idea for their target “hold over” and “lead” correlations for their firearms
- Shooters who do not mind the reticle is enlarged and takes up more visual sight space than a SFP reticle
About Second Focal Plane Scopes
Second focal plane scopes (SFP) come with the reticle behind the magnification lens. In the FFP example with the SFP scope, the 5x “zoom” one hundred yard tick would be 1/5th of the non “zoom” tick measurement.
- Far away types of shooting where shooters have increased time to make ballistic calculations
- Shooting where most shots occur within shorter proximities and ranges
- Shooters who want a clearer optic picture with less room taken up by the bigger FFP reticle
Magnification for Rifle Scopes
The extent of scope magnification you need on your scope depends upon the form of shooting you like to do. Just about every style of rifle optic delivers some amount of magnification. The volume of magnification a scope delivers is identified by the size, thickness, and curvatures of the lenses inside of the rifle optic. The zoom of the scope is the “power” of the opic. This means what the shooter is observing through the scope is magnified times the power aspect of what can typically be seen by human eyes.
Fixed Power Lens Glass
A single power rifle scope comes with a magnification number designator like 4×32. This implies the magnification power of the scope is 4x power and the objective lens is 32mm. The magnification of this kind of optic can not adjust because it is a fixed power optic.
Adjustable Power Lens Scope Info
Variable power rifle scopes can be adjusted between magnification levels. These types of scopes will list the magnification degree in a configuration like 2-10×32. These numbers imply the magnification of the scope can be adjusted between 2x and 10x power. This additionally utilizes the power levels in-between 2 and 10. The power modification is accomplished by operating the power ring component of the scope near the rear of the scope by the eye bell.
Optic Power and Range Correlation
Here are some recommended scope power settings and the distances where they may be successfully used. Remember that higher power optics will not be as practical as lower powered scopes since too much zoom can be a detractor. The same concept relates to extended ranges where the shooter needs to have increased power to see where to best aim the rifle at the target.
Info on Lens Coverings
All modern rifle scope lenses are layered. Lens covering can be a significant element of a rifle system when looking into high end rifle optics and scope equipment.
Details on Glass Lens Coatings – HD Versus ED
Some scope makers will also use “HD” or high-definition lens coatings that employ different processes, polarizations, chemicals, and elements to draw out numerous color ranges and viewable target visibility through lenses. This high-definition finish is frequently used with greater density lens glass which lowers light’s potential to refract through the lens glass. Some scope suppliers use “HD” to refer to “ED” signifying extra-low dispersion glass. ED deals with how colors are represented on the chroma spectrum and the chromatic difference or aberration which is also called color distortion or fringing. Chromatic aberration can be obvious around things with well defined outlines as light hits the object from various angles.
Rifle Optic Lens Single Finish Versus Multi-Coating
Different scope lenses can also have various coatings applied to them. All lenses normally have at least some type of treatment or finish applied to them prior to being used in a rifle scope or optic assembly. Since the lens isn’t simply a raw piece of glass, they require performance enhancing coatings. It becomes part of the finely tuned optic. It must have a finish applied to it so that the lens will be efficiently usable in lots of types of environments, degrees of sunlight (full VS shade), and other shooting conditions.
This lens treatment can safeguard the lens from scratches while decreasing 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 producer and how much you paid for it.
Some scope producers also make it a point to define if their optic lenses are layered or “multi” coated. This implies the lens has had numerous treatments applied to the surfaces of the glass. If a lens receives multiple treatments, it can prove that a company is taking several steps to fight different environmental factors like an anti-glare finishing, a scratch resistant anti-abrasion coating, followed by a hydrophilic finishing. This additionally does not always indicate the multi-coated lens will perform much better than a single coated lens. Being “better” is dependent on the manufacturer’s lens treatment technology and the quality of products used in creating the rifle glass.
Rifle Scope Lens Hydrophobic Finishing
Water on an optic’s lens does not assist with preserving a clear sight picture through a scope at all. Numerous top of the line and premium scope manufacturers will coat their lenses with a hydrophilic or hydrophobic finishing. The Steiner Optics Nano-Protection is a good example of this sort of treatment. It provides protection for the exterior of the Steiner optic 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.
Scope Installation Choices
Installing solutions for scopes come in a couple of options. There are the standard scope rings which are individually installed to the optic and one-piece scope mounts which cradle the scope. These different types of mounts also typically can be found in quick release variations which use toss levers which permit rifle shooters to rapidly mount and dismount the scopes.
Hex Key Optic Ring Mounts
Normal, clamp design mounting scope rings use hex head screws to mount to the flattop design Picatinny scope mount rails on rifles. These types of scope mounts use a couple of different rings to support the optic, and are often made from 7075 T6 billet aluminum which is developed for long distance accuracy shooting. This type of scope install is fine for rifles which require a durable, rock solid mounting solution which will not move no matter how much the scope is moved or abuse the rifle takes.
Quick-Release Cantilever Rifle Optic Rings
These types of quick-release rifle scope mounts can be used to quickly take off a scope from a rifle and reattach it to a different rifle. If they all use a comparable design mount, several scopes can also be swapped out. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers attach solidly to a flat top type Picatinny rail. This allows the scope to be sighted in while on the rifle, removed from the rifle, and remounted back on the rifle while retaining the original sighting settings. These types of mounts are useful and beneficial for shooting platforms which are moved a lot, to remove the scope glass from the rifle for protection, or for aiming systems which are adopted in between numerous rifles. An example of this mount type is the 30mm mount from Vortex Optics. It normally costs around $250 USD
About Rifle Scope Tube Sealing and Gas Purging
Wetness inside your rifle scope can ruin a day on the range and your costly optic by triggering fogging and making residue inside of the scope’s tube. Many scopes prevent wetness from getting in the scope tube with a series of sealing O-rings which are water resistant. Usually, these water-resistant optics can be submerged under 20 or 30 feet of water before the water pressure can push moisture past the O-rings. This should be sufficient wetness prevention for standard use rifles for hunting and sporting purposes, unless you anticipate taking your rifle on a boat and are worried about the optic still performing if it is submerged in water and you can still rescue the firearm.
Gas Purged Rifle Scope Tubes
Another element of avoiding the accumulation of moisture inside of the rifle scope’s tube is filling the tube with a gas like nitrogen. Given that this space is already occupied by the gas, the glass is less impacted by condition alterations and pressure variations from the external environment which could possibly 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.