Description
Rifle Scope Product Details
Leupold Service Rifle FX-4.5HD 4.5x24mm
See better. Shoot better. Score better. The VX-4. 5HD Service Rifle scope gives you the edge you need to win more matches. It delivers bright, edge-to-edge image sharpness at 4. 5x magnification – the highest magnification allowed for NRA Service Rifle competitions. At its low power, the true 1x magnification’s flat, true-to-life image makes off hand shooting quick and easy. Combine that with our new Bull-Ring reticle, developed in partnership with many of the top Service Rifle competitors, and you’ll be able to quickly center on the bullseye, every time.
Rifle Scope Product Features
Leupold Model #176284 – Service Rifle FX-4. 5HD 4. 5x24mm with Fine Duplex CDS reticle and Matte finish
100% Waterproof, fog proof, & shockproof
4. 5x magnification – the highest magnification allowed for NRA Service Rifle competitions
Twilight Max HD Light Management system – Adds up to 30 minutes of shooting light, best in class glare reduction, and edge to edge HD lens clarity
Lightweight Design – Disperses recoil energy for unrivaled durability and performance with ultra-lightweight construction
Guard-Ion Hydrophobic Lens Coating – Extremely durable, scratch resistant and sheds water, dirt, and fingerprints
30mm main tube offers incredible strength and increased range of wind age and elevation adjustment
Designed, machined, and assembled in the USA
Service Rifle VX-4.5HD 1-4x24mm
Magnification Range: 1x-4x
Weight: 13.4 oz.
Length: 10.76 in.
Maintube Diameter: 30mm
Eye Relief (in) – Low: 3.7
Eye Relief (in) – High: 3.82
Linear FOV (ft/100 yd) – Low: 123.2
Linear FOV (ft/100 yd) – High: 26.2
Leupold Service Rifle
Relentless Performance
See better. Shoot better. Score better. The VX-4.5HD Service Rifle scope gives you the edge you need to win more matches. It delivers bright, edge-to-edge image sharpness at 4.5x magnification – the highest magnification allowed for NRA Service Rifle competitions. At its low power, the true 1x magnification’s flat, true-to-life image makes off hand shooting quick and easy.
Lightweight, rugged performance
Unparalleled low light performance
Designed, machined, & assembled in the USA
Twilight Light Management System
Leupold’s Twilight Light Management systems delivers industry leading brightness and clarity by balancing light transmission, glare reduction, and image contrast and resolution ensuring a crisp image in any lighting condition.
Twilight Max HD Light Management System
Designed, Machined, & Assembled in the USA
Rugged Reliability
Proprietary gas blend and seals are tested to a 33-foot depth and a multitude of pressure changes.
Every Leupold riflescope is designed to survive a minimum of 5,000 impacts on the Punisher, Leupold’s recoil simulation machine. The force of each impact is 3x the recoil of a .308 rifle.
All Leupold riflescopes are tested to perform from -40F to 160F.
Mark AR VX-R Patrol Competition Series VX-6 VX-4.5HD
Light Management System Twilight Twilight Twilight Max Xtended Twilight Twilight Max HD
Maintube Size 1 inch 30mm 30mm 34mm 30mm
Zoom Ratio 3:1 3:1 N/A 6:1 4:1
HD Glass No No No No Yes
About the Leupold Company
Leupold is a premium producer for weapon scopes, optics, mounts, and other components used for guns like rifles and long guns. They create and manufacture their mounts, scopes, and related products by using materials which are long lasting and durable. This includes the Leupold Service Rifle FX-4.5HD 4.5x24mm by Leupold. For more shooting products, visit their website.
Info Glass
Rifle scopes allow you to precisely align a rifle at different targets by aligning your eye with the target at range. They accomplish this through zoom by making use of a set of lenses inside the scope. The scope’s positioning can be dialed in to take into account numerous environmental things like wind speed and elevation to make up for bullet drop.
The scope’s function is to help shooters understand exactly where the bullet will land based upon the sight picture you are viewing through the scope as you align the scope’s crosshair or reticle with the target. The majority of contemporary rifle optics have around 11 parts which are located internally and outside of the scope body. These parts include the rifle scope’s body, lenses, modification turrets or dials, focus rings, and other components. See all eleven parts of a rifle scope.
Rifle Glass Styles
Rifle scopes can be either “first focal plane” or “second focal plane” type of scopes. Finding the optimal type of rifle scope is based around what type of shooting you plan on doing.
About First Focal Plane Scopes
Focal plane scopes (FFP) feature the reticle in front of the zoom lens. These styles of scopes are beneficial for:
- Quick acquisition, long distance types of shooting
- Shooting circumstances where calculations are small
- Experienced shooters who know their aim point “hold over” plus “lead” ratios for their rifles
- Shooters who don’t mind the reticle is bigger and uses up more visual eyesight space than a SFP reticle
Second Focal Plane Glass
Second focal plane optics (SFP) include the reticle behind the zoom 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 additional time to make ballistic calculations
- Shooting where most shots take place within shorter ranges and spaces
- Shooters who prefer a clearer optic picture without space used up by the larger sized FFP reticle
Zoom for Scopes
The quantity of scope magnification you need on your glass depends upon the type of shooting you would like to do. Pretty much every style of rifle scope delivers some amount of magnification. The amount of zoom a scope gives is determined by the diameter, thickness, and curves of the lens glass inside of the rifle scope. The magnification level of the optic is the “power” of the scope. This means what the shooter is looking at through the scope is amplified times the power element of what can typically be seen by human eyes.
Fixed Single Power Lens Rifle Scope Details
A single power rifle optic and scope comes with a magnification number designator like 4×32. This suggests the magnification power of the scope is 4x power while the objective lens is 32mm. The zoom of this kind of scope can not adjust given that it is set from the factory.
About Variable Power Lens Glass
Variable power rifle scopes can be modified between magnified settings. The power adjustment is achieved by using the power ring part of the scope near the rear of the scope by the eye bell.
The Power and Range of Rifle Optics
Here are some suggested scope power settings and the ranges where they could be effectively used. Highly magnified glass will not be as effective as lower powered rifle scope glass given that too much magnification can be a negative aspect depending on your shooting distance. The exact same concept applies to extended distances where the shooter needs adequate power to see exactly where to best aim the rifle at the target.
Details on Lens Coatings
All modern-day rifle optic and scope lenses are covered. Lens finish is a vital aspect of a shooting system when considering high end rifle optics and scope equipment.
Info on Lens Coatings – HD Versus ED
Some scope producers also use “HD” or high-definition lens finishings which use various procedures, polarizations, chemicals, and aspects to draw out different colors and viewable quality through the lens. Some scope producers use “HD” to refer to “ED” meaning extra-low dispersion glass.
Details on Single Finishing Versus Multi-Coating
Different optic lenses can also have various coatings used to them. All lenses generally have at least some type of treatment or finishing used to them prior to being used in a rifle scope or optic.
Single covered lenses have a treatment applied to them which is typically a protective and enhancing multi-purpose treatment. This lens treatment can safeguard the lens from scratches while reducing glare and other less beneficial things experienced in the shooting environment while sighting in with the optic. The quality of a single covered lens depends on the scope company and how much you paid for it. Both the make and cost are signs of the lens quality.
Some scope makers similarly make it a point to specify if their optic lenses are covered or “multi” coated. Being “much better” depends on the producer’s lens treatment innovation and the quality of products used in building the rifle scope.
Glass Lens Anti-water Finish
Water on a lens does not help with maintaining a clear sight picture through a scope at all. Lots of top of the line and high-end optic makers will coat their lenses with a hydrophobic or hydrophilic coating.
Glass Installing Options
Installing options for scopes can be found in a couple of options. There are the basic scope rings which are individually installed to the optic and one-piece mounts which cradle the scope. These different types of mounts also generally are made in quick release variations which use throw levers which permit rifle operators to rapidly install and dismount the glass.
Hex Key Glass Ring Mounts
Normal, clamp style mounting scope rings use hex head screws to mount to the flattop style Picatinny scope mount rails on rifles. These types of scope mounts use two different rings to support the optic, and are made from 7075 T6 billet aluminum which is created for long distance accuracy shooting. This type of scope install is wonderful for rifles which need a long lasting, sound mounting solution which will not move no matter how much the scope is moved or abused.
Glass Mounts with Quick-Release Cantilever Rings
These types of quick-release rifle scope mounts can be used to rapidly attach and remove a scope from a rifle. If they all use a comparable style mount, multiple scopes can also be switched in the field. The quick detach mount style is CNC crafted from anodized 6061 T6 aluminum and the mounting levers fasten solidly 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 back on the rifle while retaining precision. These types of mounts are useful and beneficial for shooting platforms which are hauled around a lot, to remove the scope glass from the rifle for protection, or for aiming systems which are chosen for use between numerous rifles. An example of this mount style is the 30mm mount from Vortex Optics. It usually costs around $250 USD
Info Around Rifle Glass Tube Sealing and Gas Purging
Moisture inside your rifle glass can spoil a day on the range and your pricey optic by resulting in fogging and producing residue within the scope tube. The majority of optics protect against wetness from entering the optical tube with a series of sealing O-rings which are water resistant. Typically, 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 wetness prevention for standard use rifles, unless you plan on taking your rifle sailing and are concerned about the optic still performing if it goes overboard and you can still salvage the rifle.
Gas Purged Optic Tubes
Another part of preventing the buildup of wetness within the rifle optic tube is filling the tube with a gas like nitrogen. Because this area is currently occupied by the gas, the glass is less affected by climate alterations and pressure distinctions from the outside environment which could possibly enable water vapor to permeate in around the seals to fill the void which would otherwise be there. These are good qualities of a good rifle scope to look for.
