Big Bore Airguns: Everything You Need to Know

Big bore airguns have taken the airgun world by storm, offering enthusiasts and hunters a powerful alternative to traditional firearms. These high-caliber airguns are known for their exceptional power, accuracy, and versatility, making them a popular choice for hunting big game, precision shooting, and more. As the market continues to grow, more shooters are discovering the benefits of these innovative tools.

In this guide, we’ll explore what sets big bore airguns apart, their history, applications, and the best models available. Whether you’re a seasoned airgun user or just starting to explore the possibilities, this comprehensive guide will provide you with everything you need to know about big bore airguns.

What Are Big Bore Airguns?

Big bore airguns are defined by their ability to fire larger caliber projectiles, typically .30 caliber (7.62 mm) or greater. These airguns distinguish themselves from standard models by their immense power, which makes them suitable for tasks that would typically require a firearm.

Characteristics of Big Bore Airguns

1. Larger Caliber: Big bore airguns fire heavier pellets, slugs, or projectiles designed for greater impact and penetration. Common calibers include .257, .357, .45, with some models like the Airforce Texan offering calibers up to .50 (.510 caliber).
2. High Energy Output: These airguns produce high muzzle energy, often exceeding 500 foot-pounds (ft-lbs), making them capable of taking down large game such as deer or wild boar.
3. Pre-Charged Pneumatic (PCP) Technology: Most big bore airguns are powered by pre-charged pneumatic systems, which use compressed air stored in a cylinder to fire the projectile. This provides consistency in power and accuracy.

Big Bore vs. Small-Caliber Airguns

While small-caliber airguns are often used for plinking, target shooting, or small pest control, these airguns cater to more demanding applications. The key differences include:

• Power: Small calibers typically generate less than 50 ft-lbs of energy, whereas big bore airguns can exceed 500 ft-lbs with certain AirForce big-bore rifles reaching over 800 ft lbs.
• Range: Big bore airguns maintain accuracy over longer distances, making them suitable for hunting larger game.
• Ammunition: Smaller calibers use lightweight pellets, while big bore models utilize heavier slugs that retain energy better.

Calibers Considered “Big Bore”

Big bore airguns start at .257 caliber, but the range extends to .50 caliber and beyond. Here’s a quick breakdown:

• .25 to .35 (.257, .308 and .357) Caliber: Often used for medium-sized game like coyotes and other similar sized predator species.
• .45 to .50 (.457 to .510) Caliber: Suitable for larger game such as deer and hogs.

Big bore airguns are revolutionizing the airgun market, providing an eco-friendly and cost-effective alternative to traditional firearms while offering comparable performance for specific applications.

The History of Big Bore Airguns

Big bore airguns may seem like a modern innovation, but their history spans centuries, evolving alongside advancements in technology and changing demands for power and accuracy. From their early use in hunting applications to their current status as versatile tools for enthusiasts, big bore airguns have an intriguing legacy.

Early Beginnings

The concept of air-powered weapons dates back to the 16th century, with the first of these airguns appearing as early as the 17th century. These early models were handcrafted and used compressed air stored in a reservoir, often integrated into the gun’s buttstock.

• Example: Girandoni Air Rifle (1780s): This .46 caliber air rifle was a big bore weapon ahead of its time. It could fire up to 30 shots per air charge and was powerful enough to hit the target at 100 yards.

19th and 20th Century Advancements

As firearms technology advanced, the popularity of airguns, including big bore models, waned. However, some inventors continued to explore airgun technology:

• Big Bore for Hunting: By the late 1800s, big bore airguns were primarily used for hunting small and medium-sized game in regions where firearms were less accessible or regulated.

The Rise of Modern Big Bore Airguns

The resurgence of big bore airguns in recent decades is largely due to advancements in pre-charged pneumatic (PCP) technology. PCP systems allowed for:

1. Higher Pressures: Modern compressors and hand pumps can store air at pressures exceeding 3000 psi (pounds per square inch), significantly improving power and consistency.
2. Increased Accuracy: Precision barrels and air release systems made big bore airguns competitive with firearms for accuracy.
3. Versatility: Modern big bore airguns are modular and customizable, catering to a wide range of shooting needs.

Key Milestones in Development

1. 1970s-1980s: Companies like Theoben began experimenting with PCP technology.
2. 1990s: Airforce Airguns introduced models like the Talon, setting the stage for innovations.
3. 2000s and Beyond: Models like the Airforce Texan made big bore airguns mainstream, offering .257, .357, .457 and .50 caliber options for hunting and sport shooting.

As modern hunting tools, big bore airguns have adapted to meet the evolving needs of their users. Their continued innovation promises an exciting future for airgun enthusiasts.

Applications of Big Bore Airguns

Big bore airguns are versatile tools, capable of excelling in a variety of applications that demand power, precision, and adaptability. Whether for hunting, sport shooting, or other specialized uses, these airguns have proven to be a reliable and efficient choice for enthusiasts and professionals alike.

1. Hunting with Big Bore Airguns

Big bore airguns are increasingly popular among hunters due to their ability to humanely and effectively take down large game.

• Game Size: Unlike small-caliber airguns, big bore models are designed to handle medium to large game, such as deer, wild boar, and even bison in some cases.
• Ethical Hunting: The power and accuracy of big bore airguns ensure a quick and humane kill, minimizing suffering for the animal.
• Regulations: Please see the ever-growing number of states that are allowing big game Airgun hunting at Airgun Sporting Association

2. Target Shooting and Competitions

Big bore airguns are not just for hunting; they are also used in various competitive and recreational shooting events.

• Long-Range Accuracy: With advancements in technology, many of these airguns are capable of consistent accuracy at distances exceeding 100 yards, making them ideal for target shooting enthusiasts.
• Precision Tuning: Many shooters customize their airguns with scopes, bipods, and other accessories to improve performance and aim for top spots in competitions.
• Big Bore Challenges: Specialized competitions, like the Rocky Mountain Airgun Challenge(RMAC) often feature big bore airgun categories that test the skill of marksmen.

3. Predator Control and Large Invasive Species Management

While big bore airguns are typically associated with large game, they are also effective for predator control and invasive species management.

• Efficiency: A well-placed shot from a .257 or .30 caliber big bore airgun can quickly eliminate predator species such as coyotes or a .457 caliber for feral hogs.
• Quiet Operation: Compared to traditional firearms, airguns produce significantly less noise, reducing the risk of disturbing neighbors or spooking other wildlife.

4. Survival and Emergency Use

Big bore airguns can also serve as a practical tool in survival scenarios or emergency situations.

• Self-Reliance: With the ability to hunt game and perform other tasks without relying on firearm ammunition, big bore airguns are an excellent resource for off-grid living or preparedness.
• Reusable Ammunition: Many projectiles used in big bore airguns can be recovered, reducing costs and reliance on supply chains.

Big bore airguns have firmly established their place in hunting, shooting sports, and beyond. Their adaptability and performance make them a valuable tool for those seeking power without compromising precision.

Key Features of Big Bore Airguns

Big bore airguns stand out due to their unique combination of power, precision, and versatility. Here’s a closer look at the key features that make them a popular choice among airgun enthusiasts and hunters.

1. Unmatched Power and Velocity

The defining characteristic of big bore airguns is their ability to deliver high energy output.

• High Muzzle Energy: Many models generate over 500 foot-pounds (ft-lbs) of energy, with some, like the Airforce Texan .50 caliber, reaching as high as 800 ft-lbs.
• Impressive Velocities: Big bore airguns can propel projectiles at speeds up to 1000 feet per second (fps), ensuring deep penetration and kinetic energy transfer for hunting large game.

2. Exceptional Accuracy and Range

Big bore airguns are designed for precision, making them ideal for hunting and long-range target shooting.

• Premium Barrels: High-quality barrels, often from renowned manufacturers like Lothar Walther, ensure consistent accuracy.
• Long-Range Capability: With proper optics and tuning, big bore airguns maintain accuracy at distances of 100 yards or more.
• Reduced Recoil: Unlike firearms, airguns have minimal recoil, allowing for better shot placement and follow-up shots.

3. Modular and Customizable Design

Many airguns are built with modular systems that allow users to adapt their setup to various needs.

• Caliber Swapping: Some models support interchangeable barrels, enabling users to switch calibers for different applications.
• Accessory Mounts: Features like dovetail rails make it easy to add scopes, bipods, and other accessories to enhance performance.
• Adjustable Power Levels: AirForce airguns allow shooters to fine-tune power output, making them suitable for a range of tasks from small game hunting to big game pursuits.

4. Pre-Charged Pneumatic (PCP) Systems

Most big bore airguns use PCP technology for consistent and reliable performance.

• High-Pressure Air Tanks: PCP airguns use tanks that can be charged to pressures of 3000 psi or more, providing multiple powerful shots per fill.

The Best Big Bore Airguns from Airforce Airguns

Airforce Airguns has established itself as a leader in the big bore airgun market, offering an impressive lineup that caters to a variety of shooting needs. Their commitment to innovation and quality has made their products a favorite among hunters and airgun enthusiasts. Here’s a closer look at their big bore offerings:

1. Airforce Texan

The Airforce Texan is a flagship model, known as the first most powerful production airguns in the world.

• Caliber Options: Available in .257, .308, .357, .457, and .50 calibers.
• Power: The Texan .50 caliber generates up to 800+ foot-pounds of energy, making it suitable for taking down large game such as deer, hogs, and even bison.
• Customization: Compatible with a range of accessories, including moderators, scopes, and bipods.
• Why It’s Ideal: The Texan delivers unmatched power and versatility, making it a go-to choice for serious hunters.

2. Texan Carbine

The Texan Carbine offers the same legendary performance as the standard Texan but in a more compact and lightweight design.

• Caliber Options: Available in .257, .308, .357, .457, and .50 calibers.
• Compact Design: The shorter length makes it easier to handle in tight spaces or dense terrain.
• Power: Despite its compact size, it still delivers impressive energy levels, ideal for medium to large game hunting.
• Why It’s Ideal: Perfect for hunters who need a portable yet powerful airgun.

3. Texan LSS

The Texan LSS combines power with stealth, featuring an integrated sound moderation system.

• Caliber Options: Available in .308, .357, .457, and .50 calibers.
• Sound-Loc®: Designed to minimize noise without sacrificing performance, making it ideal for stealthy hunting.
• 34″ Barrel: Provides increased accuracy and velocity for long-range shooting.
• Why It’s Ideal: Hunters who value quiet operation without compromising on power will find the Texan LSS a perfect match.

4. TexanSS

The TexanSS offers a balance of power and quiet operation in a more compact package.

• Caliber Options: Available in .257, .308, .357, .457 and .510 calibers.
• Built-In Sound-Loc®: Reduces noise significantly, making it suitable for suburban or noise-sensitive environments.
• Portable Design: Its lighter and shorter build makes it easy to carry on extended hunts.
• Why It’s Ideal: For those looking for a quieter, portable big bore airgun, the TexanSS is a top choice.

Why Choose Airforce Airguns?

Airforce Airguns is renowned for their modular designs, exceptional power, and reliability. Whether you’re hunting, target shooting, or exploring the versatility of big bore airguns, the Texan series offers something for every enthusiast.

Tips for Choosing a Big Bore Airgun

Selecting the right big bore airgun is essential to ensure it meets your specific shooting needs. With Airforce Airguns offering a variety of powerful and versatile options, here are key factors to consider when making your choice.

1. Define Your Intended Use

Your primary application will heavily influence which big bore airgun is right for you.

• For Large Game Hunting: Models like the AirForce Texan and Texan LSS, with their high energy output, are ideal for taking down big game like deer, wild boar, and bison.
• For Compact Hunting Needs: The Texan Carbine offers portability without sacrificing power, perfect for navigating dense terrain.
• For Noise-Sensitive Environments: Choose the TexanSS or Texan LSS, which include sound moderation features to keep noise levels low.

2. Consider Caliber Options

The caliber of your airgun determines its power, range, and suitability for specific tasks.

• Smaller Calibers (.257, .308): Great for medium-sized game like coyotes, or for long-range target shooting.
• Larger Calibers (.357, .457, .50): Best for large game hunting where maximum stopping power is required.

3. Evaluate Portability

Think about where and how you’ll be using your airgun.

• Compact and Lightweight: The Texan Carbine is an excellent option for hunters who need a maneuverable airgun for challenging terrain.
• Steady and Robust: The standard Texan or Texan LSS models are better suited for static shooting setups or open environments.

4. Noise Considerations

If you’re hunting in suburban areas or sensitive environments, a quieter airgun is essential.

• Models with integrated moderation, like the TexanSS or Texan LSS, offer reduced noise levels, making them a more discreet choice.

5. Budget and Customization

Big bore airguns represent an investment, and your budget may influence your choice.

• Entry-Level: If you’re new to big bore airguns, the Texan Carbine or TexanSS are great starting points.
• Advanced Options: For experienced users, the Texan LSS offers enhanced accuracy and power for more demanding applications.
• Customization Potential: All AirForce Airguns models support various accessories like scopes, bipods, allowing you to tailor your setup.

6. Air Supply and Maintenance

Big bore airguns require a high-pressure air source, so consider how you’ll refill your airgun.

• High-Pressure Hand Pumps: Affordable but labor-intensive.
• Compressed Air Tanks or Compressors: Ideal for frequent shooters who need quick and reliable refills.

Airforce Airguns’ big bore models provide a range of options to meet any shooter’s needs. By understanding your intended use, selecting the right caliber, and considering portability and noise levels, you can confidently choose the perfect airgun to enhance your shooting experience.

Maintenance and Safety Tips for Big Bore Airguns

Proper maintenance and adherence to safety practices are essential for maximizing the performance and longevity of your big bore airgun. Regular care ensures your airgun operates smoothly while keeping you and others safe during use.

1. Cleaning Your Big Bore Airgun

Keeping your airgun clean is vital for maintaining accuracy and performance.

• Barrel Cleaning: Regularly clean the barrel with a cleaning rod and appropriate patches to remove debris and lead residue.
  • Use a non-petroleum-based cleaner to avoid damaging seals.
  • For heavily fouled barrels, use a cleaning solvent recommended for airguns.
• External Cleaning: Wipe down the exterior of the airgun with a soft cloth to remove dirt and moisture, preventing rust and corrosion.

2. Maintaining the Air System

The air system is the heart of a pre-charged pneumatic (PCP) airgun, and proper care is crucial.

• Inspect Seals and O-Rings: Regularly check for wear or damage on seals and O-rings, replacing them as needed to maintain a proper air seal.
• Avoid Overfilling: Use a pressure gauge to ensure you don’t exceed the recommended fill pressure, as overfilling can damage the airgun.
• Use Clean, Dry Air: Always use clean, moisture-free compressed air to prevent internal corrosion.

3. Safe Handling Practices

Big bore airguns are powerful tools and must be handled with the same care as firearms.

• Always Treat as Loaded: Never point your airgun at anything you don’t intend to shoot.
• Trigger Discipline: Keep your finger off the trigger until you are ready to fire.
• Safe Storage: Store your airgun in a secure location, preferably in a locked cabinet or with a trigger lock.

4. Regular Inspections

Periodic checks can prevent malfunctions and prolong the life of your airgun.

• Check Screws and Fasteners: Ensure all screws and fasteners are tight to avoid loose components affecting performance.
• Inspect Optics and Accessories: Regularly check your scopes, mounts, and other attachments for proper alignment and function.

5. Extending Airgun Lifespan

A few best practices can help ensure your big bore airgun lasts for years.

• Avoid Dry Firing: Firing without a projectile can strain the internal components.
• Store in a Controlled Environment: Keep your airgun in a dry, temperature-controlled area to prevent damage from humidity and extreme temperatures.

6. Safety When Shooting

• Be Aware of Your Backstop: Ensure you have a safe and secure backdrop for your shots, especially when using a powerful airgun capable of long-range travel.
• Wear Eye and Ear Protection: While big bore airguns are quieter than firearms, eye and ear protection is always recommended.
• Know Local Laws: Be aware of any regulations governing the use of airguns in your area, particularly when hunting.

Final Advice

With proper care and responsible handling, your airgun will remain a reliable tool for years. Following these maintenance and safety tips ensures a safe and enjoyable experience, whether you’re hunting, target shooting, or exploring the capabilities of your airgun.

Big bore airguns have become a game-changer in the world of air-powered shooting, offering power, precision, and versatility that rivals traditional firearms. Whether you’re a hunter seeking a reliable tool for large game, a target shooter aiming for long-range accuracy, or an enthusiast exploring the unique capabilities of airguns, big bore models deliver exceptional performance.

AirForce Airguns stands at the forefront of this revolution, with a lineup that includes the Texan, Texan Carbine, Texan LSS, and TexanSS. Each model is designed with precision and power in mind, providing options for every shooting need. From compact designs for portability to integrated moderation systems for stealthy operation, AirForce’s big bore airguns set the standard for quality and innovation.

By understanding the features, applications, and care tips discussed in this guide, you can make an informed decision about which big bore airgun is right for you. As you explore the world of big bore airguns, remember to prioritize safety, maintain your equipment, and choose a model that aligns with your goals.

If you’re ready to experience the power and performance of big bore airguns, visit AirForce Airguns today and find the perfect model to elevate your shooting experience.