Scopes and Optics

Best Vortex Scope for Slug Gun

Vortex Optics Diamondback Second Focal Plane Riflescopes

Do you want to buy the best Vortex scope for slug gun? In this guide, we will review 3 of the best options that will improve your precision and accuracy skills.

A slug gun is a shotgun designed for applications such as hunting, target shooting, and competition shooting. Slug guns are rampant among hunters in areas with rifle and buckshot ammunition prohibitions. Slug guns usually can present an accuracy of up to 150 yards and above.

They are thus essential for improving your aiming skills. When attached to a scope, slug guns can do wonders. A slug gun scope helps you hit a distant target in one shooting. A scope provides a clear view of the target, resulting in a better and more enjoyable shooting experience.

Over the years, Vortex scopes stood out as some of the best available on the market. Here, we will look at the best Vortex scopes to bring the best out of your slug gun. So, if you were having difficulty figuring out the best scope for your slug gun, worry not. Let’s look at the top three Vortex scopes for slug guns.

3 Best Vortex Scope for Slug Gun

1) Vortex Diamondback 3-9x40mm Riflescope

Vortex Optics Diamondback Tactical FFP Riflescopes

Vortex has a long-standing reputation for top-notch manufacturing of scopes, and the Diamondback 3-9x40mm Riflescope is no different. The Diamondback 3-9x40mm Riflescope will suit your slug gun perfectly. It hosts an array of incredible features, making it a favorite for many shooters. To begin with, the scope has a dead-Hold BDC reticle. This feature makes the Diamondback 3-9x40mm riflescope perfect for muzzleloaders indulging in outdoor adventures like hunting. It is important when holdover approximation is a concern. The Diamondback 3-9x40mm guarantees the brightest and clearest views ever seen on an optic thanks to the fully multi-coated optics combined with anti-reflective coatings.

Regarding construction, the scope is durably made, as it is crafted from aircraft-grade aluminum. It has a single-piece tube that enhances accuracy and maximizes visual performance. A one-inch diameter tube provides a flexible blend of adjustment, size and weight for diverse shooting applications.

Better yet, the scope is made with the outdoors in mind. Since using your muzzleloader means exposing it to unpredictable weather conditions, the scope is made with waterproof and fog-proof construction. This is due to the O-ring seals and argon-gas purging present. No matter how tough the weather becomes, you can rely on the scope to do the expected. Besides that, the Diamondback 3-9x40mm is shockproof and impact resistant.

Another great feature of the scope is its hard-anodized finish. This is essential as it offers a reduced-glare matte surface that helps you conceal your position easily. Capped reset turrets are present for fast re-indexing of the turret to zero after sighting in the riflescope.

For more convenience, the scope has a fast-focus eyepiece that makes focusing on the reticle quick and easy. Nonetheless, a Precision-Glide Erector system ensures a smooth and clean gliding of the components in the zoom lens mechanism, regardless of the magnification range.

The Diamondback is a unique option for your slug gun with all these features.


  • Dead-Hold BDC reticle
  • Made with high-quality materials
  • Waterproof, fog proof and shockproof performance
  • Hard anodized finish
  • Precision-Glide erector system
  • Fast focus eyepiece
  • 40mm objective lens diameter
  • 3-9x magnification range
  • Fully multi-coated optics
  • Capped reset turrets
  • Second focal plane reticle


  • None


2) Vortex Crossfire II 2-7x32mm Scout Riflescope

Vortex Crossfire II 2-7x32mm Scout Riflescope

Vortex Crossfire II 2-7x32mm Scout Riflescope suits you if you want a scope that can perform admirably on a slug gun. The scope is made with durability in mind. This means that it is perfect for extreme outdoor use. Featuring an aircraft-grade aluminum body, the scope is highly durable. Its rugged construction makes it shockproof. Besides being shockproof, it has waterproof and fog proof features made possible by the O-ring seals and nitrogen purging. As a result, the Crossfire II 2-7x32mm Scout will face bad weather conditions and come out looking brand new. A hard-anodized finish maximizes durability and allows camouflage of the shooter’s position.

There are capped reset turrets for fast re-indexing of the turret to zero after sighting in the riflescope. The turrets are protected from exterior elements by the caps.

Also, the Crossfire II 2-7x32mm Scout Riflescope has fully multi-coated lenses, so visibility should not be a concern. There are multiple anti-reflective coatings as well. This leads to maximum light transmission guaranteeing bright and clear images, no matter the lighting condition.

Additionally, the scope uses the popular V-Plex reticle ideal for diverse hunting applications. With a flexible 2-7x magnification range, the Crossfire II Riflescope is suitable for shooting at different ranges.


  • 32mm objective lens diameter
  • Variable 2-7x32mm magnification
  • 45 inches of eye relief
  • V-Plex reticle
  • Waterproof, fog proof and shockproof
  • Durable construction that withstands rugged use
  • Hard anodized finish
  • Fully multi-coated lenses
  • Capped reset turrets


  • Turrets could be better


3) Vortex Diamondback Tactical First Focal Plane Riflescope

Vortex Optics Diamondback Tactical First Focal Plane Riflescopes

This Vortex scope is budget-friendly yet comes with impressive features that would otherwise be found in more expensive counterparts. The Diamondback Tactical First Focal Plane Riflescope is what you need for your slug gun. Its fully multi-coated lenses enhance light transmission, resulting in bright and clear images of the target picture. Extra-low dispersion glass improves resolution and color fidelity, leading to sharp images. Like other Vortex scopes, the Diamondback is constructed with robust aircraft-grade aluminum. O-ring seals and nitrogen gas purging are present. Their primary function is to provide a waterproof and fog-proof performance. This implies that the scope will do the job regardless of the weather. Thanks to its rugged construction, the scope is also shockproof. A hard-anodized finish is another inclusion on the scope. This maximizes durability and allows camouflage to meet the needs of many users in the field.

Another exciting feature is an elevated magnification rib to promote instant magnification adjustments. You will love the fact focus eyepiece that allows easy and quick focusing of the reticle. This helps in the rapid acquisition of the intended target. The Precision-Force Spring System ensures maximum repeatability and easy adjustments.

It is worth noting that the Diamondback has a 4-16x magnification range. This makes it versatile for diverse applications at various distances. It has a massive 44mm objective lens diameter that facilitates superior light-gathering capabilities in the scope.


  • 30mm tube size
  • Made of highly durable aircraft-grade aluminum
  • Hard anodized matte finish
  • Waterproof, fog proof and shockproof
  • Fully multi-coated lenses
  • Fast focus eyepiece
  • Magnification rib for easy changes
  • Extra-low dispersion glass
    • inches of eye relief
  • Precision-Glide Erector System
  • EBR-2C MOA reticle
  • Great features at an unbeatable price
  • Easy to operate


  • None




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What Makes a Great Scope for a Slug Gun?


The scope should have the capability to endure any extreme weather and rugged use. It should guarantee relentless use for many years.

High glass quality and lens coating

A great scope should be able to ensure exceptional image quality. It should have extra-dispersion glass and be covered with multiple coatings on the lens.

Ease of use

It should not have sophisticated knobs and controls to give you an easy time when in the field.

Generous eye relief

The scope should have adequate eye relief to protect your eyes and brows from bruises that may arise from recoil.

Reliable warranty

The scope should have a generous warranty that supports repair or replacement in case of any issues.


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Considerations When Selecting the Best Vortex Scope for Slug Gun


Look for a scope with high-quality components that can endure rugged use. Shotguns produce more kinetic energy, transforming into efficiency when hunting and experiencing recoil. Your scope should thus have a rugged construction that makes it shockproof.

More n durability, the scope should have O-ring seals and be purged with either dry nitrogen or argon gas. This ensures the scope is waterproof and fog proof for relentless performance.


Ensure that you settle for a scope that matches your budget. Fortunately, there are different options to opt from, which come in varying ranges to suit any budget. Remember not to settle for a cheaper model that compromises providing satisfying performance.

It is a total waste of resources when you invest in a cheaper scope, but it comes with limited functions.

Eye relief

This is the distance between the back lens and your eye through which you view the magnified image. Gun scopes have eye relief, and their primary function is to bolster the effects of slug gun recoils and shield your eyes from injuries. Before buying a scope, look out for this feature and get one with at least 3.5 inches of eye relief.


Clarity is another important factor to put in mind. It is crucial as it blurs the background so you can only see the target in focus. The scope will not give you a good vision if you lack clarity. So, ensure that your scope has the clarity to hit your target accurately.


If you prefer spending time hunting at night, look for a slug gun scope that can offer brightness in poor lighting conditions. The brightness of a scope is determined by its lens coating.  The lenses should be fully multi-coated to ensure maximum light transmission, leading to bright target images.


Magnification is one of the most pertinent factors to put in mind. A greater magnification allows you to locate your intended target easily. Having a larger view of objects across a long range can be beneficial. For example, when hunting a moving target such as a deer.


FAQs on the Best Vortex Scope for Slug Gun

1) Can I use a riflescope on a slug gun?

Yes absolutely. You can use a rifle scope on a shotgun for any reason as long as you can physically mount it. Despite the fact that scopes were designed for rifles and long-range shooting, they can still be utilized on slug guns. Remember that even the best slug gun has a restricted range compared to a rifle. Therefore, you don’t need a slug gun scope with much magnification.

2) How accurate is a slug shotgun?

The expected accuracy for a slug shotgun is around 50 yards. This is a normal range for a field gun with a smooth barrel and bead sight, firing a brand of ammunition chosen at random.

3) Are there automatic shotguns?

Automatic shotguns are designed to be used in military conflict. Because of the large spectrum of shotgun ammunition, they can perform various combat duties. Automatic shotguns are not commonly utilized in the United States but are used more frequently in other countries.


A slug gun attached to a quality scope improves your precision over long ranges. As a result, you get a more rewarding hunting experience. The Vortex slug gun scopes above are excellent choices for you. Choosing any of them means a better experience in the field.


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