Description
Last update on June 6, 2023 // Source: Amazon API
Rifle Scope Product Details
Vortex Optics Crossfire II 6-18×44 AO, SFP Riflescope – Dead-Hold BDC Reticle (MOA) with Baseball Hat
Clear, tough and bright, our popular Crossfire II, 1-inch tube riflescopes are built for performance. Long eye relief, a fast-focus eyepiece, fully multi-coated lenses and improved, resettable MOA turrets are hallmarks of the series.
Rifle Scope Product Features
About this item
The 6-18×44 Adjustable Objective Crossfire II riflescope is one of many configurations in the Crossfire II line. The Dead-Hold BDC reticle is good for hunting/shooting at varying ranges where estimating holdover is a concern.
The adjustable objective provides image focus and parallax removal to the shooter while anti-reflective, fully multi-coated lenses provide bright and clear views.
With long eye relief and an ultra-forgiving eye box, you’ll be able to quickly get a sight picture and acquire your target. The fast focus eyepiece allows quick and easy reticle focusing.
Capped reset turrets are finger adjustable with MOA clicks that can be reset to zero after sighting in.
A single piece tube constructed from aircraft grade aluminum ensures strength and shockproof performance. O-ring sealed and nitrogen purged, the Crossfire II delivers waterproof and fog proof performance. Vortex Optics hat included, hat color may vary.
Crossfire II 6-18×44 AO Dead-Hold BDC (MOA) Riflescope (CF2-31033)
Specifically designed for discriminating hunters and shooters, the Crossfire II series of riflescopes offer the highest levels of performance and reliability. With long eye relief, a fast-focus eyepiece, fully multi-coated lenses and resettable MOA turrets, there’s no compromising on the Crossfire II. Clear, tough and bright, this riflescope hands other riflescopes their hat. The hard anodized single-piece aircraft-grade aluminum tube is nitrogen purged and o-ring sealed for waterproof and fogproof performance.
Dual use for Shooting Tactical/Hunting
Dead-Hold BDC MOA Reticle
Customized hashmark design helps eliminate guesswork on holdover and windage corrections. Good for hunting/shooting at varying ranges where estimating holdover is a concern.
Second focal plane (SFP) reticles are located near the scope’s eyepiece behind the image erecting and magnifying lenses. This style of reticle does not visually change in size when you change the magnification. The advantage of an SFP reticle is that it always maintains the same appearance. Listed reticle subtensions used for estimating range, holdover, and wind drift correction are only accurate at one particular magnification.
Model Adjustment Graduation Travel per Rotation Max Elevation Adjustment Max Windage Adjustment Parallax Setting
CF2-31033 6-18×44 AO 1/4 MOA 15 MOA 50 MOA 50 MOA 10 yards to Infinity
About the Vortex Company
Vortex is a premium supplier for long gun scopes, optics, mounting solutions, and other accessories used for firearms like rifles and long guns. They style and supply their mounts, scopes, and related products by making the most of materials which are long lasting and resilient. This includes the Vortex Optics Crossfire II 6-18×44 AO, SFP Riflescope – Dead-Hold BDC Reticle (MOA) with Baseball Hat by Vortex. For additional shooting goods, visit their website.
Info About Rifle Scopes
Rifle scopes enable you to precisely aim a rifle at different targets by aligning your eye with the target at range. They accomplish this through zoom by using a set of lenses inside the scope. The scope’s positioning can be dialed in to account for separate environmental considerations like wind speed and elevation to account for bullet drop.
The scope’s function is to help shooters understand exactly where the bullet will hit based on the sight picture you are viewing via the scope as you line up the scope’s crosshair or reticle with the intended target. The majority of contemporary rifle optics have about 11 parts which are arranged inside and outside of the scope body. These parts consist of the rifle scope’s body, lenses, adjustment turrets, focus rings, and other parts. Learn about the eleven parts of rifle glass.
About Rifle Glass Varieties
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Selecting the optimal type of rifle optic depends on what type of shooting you plan on doing.
First Focal Plane Scope Details
First focal plane glass (FFP) come with the reticle before the magnifying lens. This triggers the reticle to increase in size based on the level of zoom being used. The outcome is that the reticle measurements are the same at the magnified distance as they are at the non magnified distance. One tick on a mil-dot reticle at 100 yards without “zoom” is still the same tick at one hundred yards with 5x “zoom”. These types of scopes work for:
- Quick acquisition, far away types of shooting
- Shooting circumstances where computations are very little
- Experienced shooters who recognize their target “hold over” and also “lead” equations for their firearm
- Shooters who don’t mind the reticle is enlarged and takes up more visual eyesight space than a SFP reticle
Second Focal Plane Glass
Second focal plane scopes (SFP) include the reticle to the rear of the magnification 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 more time to make ballistic calculations
- Shooting where most of the shots take place within shorter ranges and proximities
- Shooters who like a clearer optic sight picture without room used up by the bigger FFP reticle
Magnification for Glass
The quantity of magnification a scope supplies is figured out by the size, thickness, and curvatures of the lenses inside of the rifle scope. The magnification of the scope is the “power” of the scope.
Single Power Lens Optic Facts
A single power rifle optic will have a magnification number designator like 4×32. This indicates the zoom power of the scope is 4x power while the objective lens is 32mm. The magnification of this type of scope can not fluctuate because it is a set power scope.
About Variable Power Lens Rifle Glass
Variable power rifle scopes can be adjusted between magnification increments. These types of scopes will note the magnification degree in a configuration like 2-10×32. These numbers mean the magnification of the scope can be adjusted in between 2x and 10x power. This always utilizes the powers in-between 2 and 10. The power manipulation is accomplished using the power ring part of the scope near the back of the scope by the eye bell.
Glass Power and Range Correlation
Here are some advised scope power levels and the ranges where they could be successfully used. Highly magnified scopes will not be as beneficial as lower powered optics due to the fact that too much zoom can be a negative aspect depending on your shooting distance. The very same idea relates to longer distances where the shooter needs to have adequate power to see exactly where to properly aim the rifle.
Lens Covering for Glass
All contemporary rifle optic and scope lenses are covered in special coatings. There are different types and qualities of lens coatings. Lens covering can be a crucial aspect of a rifle’s setup when contemplating high-end rifle optics and targeting equipment. The glass lenses are among the most essential parts of the scope given that they are what your eye looks through while sighting a rifle in on the point of impact. The coating on the lenses protects the lens exterior and even assists with anti glare capabilities from excess sunshine and color perception.
About Rifle Glass Lens Coatings – HD Versus ED
Some optic manufacturers additionally use “HD” or high-def lense finishings which apply different procedures, chemical applications, polarizations, and components to extract separate color ranges and viewable definition through lenses. This HD finishing is frequently used with more costly, high density lens glass which decreases light’s chance to refract through the lens glass. Some scope producers use “HD” to refer to “ED” signifying extra-low dispersion glass. ED deals with how colors are presented on the chroma spectrum and the chromatic aberration which is similarly called color distortion or fringing. Chromatic aberration may be visible around objects with well defined outlines as light hits the object from particular angles.
Single Coating Versus Multi-Coating for Glass
Different scope lenses can even have various coatings 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. Since 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 it will be efficiently functional in numerous kinds of environments, degrees of light (full light VS shade), and other shooting conditions.
Single covered lenses have a treatment applied to them which is typically a protective and enhancing multi-purpose treatment. This lens treatment can preserve the lens from scratches while decreasing glare and other less helpful things experienced in the shooting environment while sighting in with the scope. The quality of a single coated lens depends upon the scope designer and the amount you spent paying for it. Both are indicators of the lens quality.
Some scope makers likewise make it a point to define if their optic lenses are layered or “multi” coated. This suggests the lens has had multiple treatments applied to the surfaces. If a lens gets numerous treatments, it can establish that a maker is taking several actions to fight different environmental factors like an anti-glare covering, a scratch resistant anti-abrasion coating, followed by a hydrophilic covering. This also doesn’t always suggest the multi-coated lens is much better than a single covered lens. Being “better” depends upon the maker’s lens treatment technology and the quality of products used in building the rifle glass.
Hydrophobic Finishing for Rifle Optics
Water on a lens doesn’t help with keeping a clear sight picture through a scope at all. Many top of the line and military grade scope companies will coat their lenses with a hydrophilic or hydrophobic anti-water covering.
Rifle Glass Mounting Alternatives
Mounting approaches for scopes can be found in a couple of choices. There are the basic scope rings which are individually installed to the scope and one-piece mounts which cradle the scope. These different kinds of mounts also generally come in quick release variations which use toss levers which allow rifle operators to quickly mount and remove the scope.
Rifle Optic Mounts with Hex Key Rings
Basic, clamp type mounting optic rings use hex head screws to install to the flattop design Picatinny scope mount rails on rifles. These kinds of scope mounts use double individual rings to support the scope, and are made from 7075 T6 billet aluminum or similar materials which are developed for far away accuracy shooting. This form of scope mount is effective for rifle systems which need to have a long lasting, rock solid mount which will not shift no matter just how much the scope is moved about or abuse the rifle takes. These are the style of mounts you want for a specialized scope setup on a long distance hunting or interdiction rifle that will rarely need to be altered or recalibrated. Blue 242 Loctite threadlocker can also be used on the scope mount’s screws to protect against the hex screws from backing out after they are mounted firmly in position. An example of these mounting rings are the 30mm type made by the Vortex Optics brand. The set typically costs around $200 USD
Rifle Scope Mounting Solutions with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to quickly attach and detach a scope from a rifle. Several scopes can also be switched out if they all use a similar designed mount. The quick detach design is CNC machined from anodized 6061 T6 aluminum and the mounting levers connect firmly to a flat top design Picatinny rail. This enables the scope to be sighted in while on the rifle, taken off of the rifle, and remounted while maintaining the original sighting settings. These kinds of mounts come in convenient for shooting platforms which are carried a lot, to remove the scope glass from the rifle for protection, or for scopes which are used in between several rifles. An example of this mount type is the 30mm mount from the Vortex Optics manufacturer. It usually costs around $250 USD
Optic Tube Sealing and Gas Purging
Wetness inside your rifle glass can ruin a day on the range and your highly-priced optic by resulting in fogging and making residue within the scope tube. The majority of optics protect against humidity from entering the optical tube with a series of sealing O-rings which are water resistant. Usually, these optics can be immersed under 20 or 30 feet of water before the water pressure can force moisture past the O-rings. This should be ample moisture content prevention for standard use rifles, unless you plan on taking your rifle boating and are worried about the scope still functioning if it goes over the side and you can still salvage the firearm.
Gas Purged Rifle Glass Tubes
Another element of avoiding the accumulation of wetness within the rifle scope’s tube is filling the tube with a gas like nitrogen. Considering that this area is currently occupied by the gas, the optic is less affected by temperature level changes and pressure differences from the external environment which might possibly allow water vapor to seep in around the seals to fill the void which would otherwise exist. These are good qualities of a decent rifle scope to seek out.
