Hatsan Bullboss

The Hatsan Bullboss is a powerful PCP (Pre-Charged Pneumatic) air rifle designed for both serious hunters and precision shooters. With a combination of high velocity, low noise, and exceptional accuracy, the Bullboss stands out as a top choice in the airgun market.

The Hatsan BullBoss is a pre-charged pneumatic (PCP) air rifle designed in a compact bullpup configuration, meaning the action and magazine are located behind the trigger, resulting in a shorter overall length without sacrificing barrel length. This design enhances maneuverability, making it ideal for hunting and target shooting.

 

The Hatsan BullBoss is a pre-charged pneumatic (PCP) air rifle introduced by Hatsan USA in 2016. Designed as a bullpup-style airgun, it offers a compact form factor without compromising on barrel length or performance. The BullBoss was developed to provide shooters with a feature-rich, high-performance air rifle at a competitive price point.

Building upon the success of the Hatsan Gladius, the BullBoss incorporates similar advanced features, including the Quattro 2-stage fully adjustable match trigger, QuietEnergy barrel technology, and a side-lever cocking mechanism. These enhancements make it suitable for various applications, from target shooting to small game hunting.

Over the years, the BullBoss has undergone refinements, including the introduction of the BullBoss QE model, which features integrated sound moderation for quieter shooting. The rifle is available in multiple calibers, including .177, .22, and .25, catering to a wide range of shooting preferences.

Today, the Hatsan BullBoss continues to be a popular choice among airgun enthusiasts, known for its blend of power, accuracy, and value.

 

Key Features of the Hatsan BullBoss Air Rifle

1. Bullpup Design for Compactness

The BullBoss utilizes a bullpup configuration, positioning the action and magazine behind the trigger. This design results in a shorter overall length without compromising barrel length, making it ideal for maneuverability in tight spaces.

2. Caliber Options

Available in three calibers—.177 (4.5mm), .22 (5.5mm), and .25 (6.35mm)—the BullBoss caters to various shooting preferences, from target practice to small game hunting.

3. High Velocity and Power

Depending on the caliber and pellet type, the BullBoss can achieve velocities up to 1,350 feet per second and produce up to 49 foot-pounds of energy, ensuring powerful shots for effective hunting . 

4. QuietEnergy Barrel Technology

Equipped with a fully shrouded, precision rifled German steel barrel and integrated sound moderator, the BullBoss reduces noise by up to 50%, making it suitable for backyard shooting.

5. Quattro 2-Stage Adjustable Match Trigger

The two-stage, fully adjustable match trigger allows customization of both trigger travel and load, providing a precise and consistent shooting experience.

6. Side-Lever Action

The side-lever cocking mechanism offers smooth and reliable operation, with an auto-indexing 10-shot rotary magazine for .177 and .22 calibers, and a 9-shot magazine for .25 caliber.

7. Ambidextrous Stock with Adjustable Cheek Riser

The synthetic ambidextrous stock features an ergonomic pistol grip, adjustable cheek riser, and custom molding for enhanced control and comfort during shooting sessions.

8. Detachable 230cc Air Cylinder

The removable 230cc air cylinder allows for approximately 30-40 shots per fill, depending on caliber. Spare cylinders are available for extended shooting sessions.

9. Multiple Safety Features

The BullBoss includes manual and automatic safety mechanisms, along with an anti-double pellet feed system to prevent multiple pellets from loading into the barrel at once.

10. Versatile Accessory Rails

Equipped with multiple Picatinny rails, the BullBoss allows for the attachment of various accessories such as scopes, bipods, and flashlights, enhancing the rifle’s versatility.

 

Care & Maintenance of Hatsan BullBoss

1. Regular Cleaning

• Barrel Cleaning: Use a high-quality airgun cleaning rod and cleaning patches to remove debris and pellet residue from the barrel.

• Exterior Wipe: Keep the rifle’s exterior free of dust and moisture by wiping it with a soft, dry cloth.

2. Lubrication

• O-rings & Seals: Periodically check and lightly lubricate the air cylinder O-rings with high-grade airgun silicone oil to prevent leaks.

• Trigger & Moving Parts: Use recommended lubricants sparingly on the trigger mechanism and side-lever to ensure smooth operation.

3. Air Cylinder Care

• Refill Properly: Only refill the 230cc air cylinder with a regulated air source within the manufacturer’s pressure limits.

• Storage: When storing the rifle for long periods, keep the cylinder partially pressurized to avoid seal damage.

4. Stock & Accessories

• Synthetic Stock: Clean with a damp cloth and mild soap if necessary. Avoid harsh chemicals that could damage the finish.

• Scope & Rails: Regularly check that scopes, mounts, and Picatinny accessories are secure to maintain accuracy.

5. Safe Storage

• Dry & Cool Place: Store the rifle in a dry, cool environment to prevent corrosion or damage to seals and metal components.

• Safety On: Always keep the safety engaged and store the rifle unloaded.

6. Routine Inspection

• Before Shooting: Check for cracks, loose screws, or worn parts.

• Professional Service: Have the rifle inspected by a qualified technician periodically to ensure optimal performance.

  Why Choose the Hatsan BullBoss?

  1. Exceptional Power and Performance

  • High Velocity: Delivers up to 1,350 FPS and 49 foot-pounds of energy, making it suitable for small game hunting and target shooting.

  • Multiple Caliber Options: Available in .177, .22, and .25 calibers to cater to various shooting needs.

  2. Bullpup Design for Compactness

  • Space-Saving: The bullpup configuration allows for a 23-inch barrel in a compact 36.8-inch frame, enhancing maneuverability without sacrificing accuracy.

  • Ergonomic Stock: Features an ambidextrous, ergonomic stock with a pistol grip, adjustable cheek riser, and ventilated rubber butt pad for comfort during extended use.

  3. Advanced QuietEnergy (QE) Technology

  • Noise Reduction: Integrated sound moderator and precision rifled German steel barrel reduce noise by up to 50%, making it ideal for backyard shooting.

  4. Smooth and Reliable Operation

  • Side-Lever Cocking: Equipped with a substantial knurled handle for a secure grip, ensuring smooth cycling of the 9-shot (.25 caliber) or 10-shot (.177/.22 caliber) rotary magazine.

  • Anti-Knock System: Prevents gas wastage when the rifle is knocked or bounced, maintaining efficiency.

  5. Precision Trigger System

  • Quattro 2-Stage Trigger: Fully adjustable for both travel and load, allowing for a customized and consistent shooting experience.

  6. Versatile Accessory Compatibility

  • Multiple Rails: Features Picatinny rails for both 11mm and 22mm scope mounts, along with an additional rail beneath the forearm for attaching accessories like bipods or flashlights.

  7. Convenient Air Cylinder System

  • Detachable 230cc Air Cylinder: Provides approximately 30–40 shots per fill, depending on caliber, with a built-in air pressure gauge for monitoring.

  • Quick-Fill Nozzle: Allows for easy refilling, enhancing user convenience.

     

    Frequently Asked Questions (FAQ) – Hatsan BullBoss Air Rifle

    1. What calibers are available for the Hatsan BullBoss?

    The BullBoss is available in .177, .22, and .25 calibers, catering to various shooting preferences and needs.

    2. What is the maximum velocity and power output of the BullBoss?

    Depending on the caliber and pellet type, the BullBoss can reach up to 1,350 feet per second (FPS) and deliver up to 49 foot-pounds of energy (FPE), making it suitable for small game hunting and target shooting.

    3. How many shots can I get per fill?

    With its detachable 230cc air cylinder, the BullBoss provides approximately 30–40 shots per fill, depending on the caliber and shooting conditions.

    4. What type of pellets should I use?

    It’s recommended to use quality, precision ammunition for optimal accuracy. Ensure that the pellets are not damaged and are of consistent size and weight.

    5. Can I use any air source to refill the BullBoss?

    The BullBoss should be filled with clean, dry compressed air only. It’s compatible with SCUBA tanks, diver’s bottles, or a hand pump designed for pre-charged pneumatic (PCP) airguns. The maximum safe working pressure is 200 BAR.

    6. Is the BullBoss suitable for backyard shooting?

    Yes, the BullBoss features QuietEnergy barrel technology, including a fully shrouded precision rifled German steel barrel and an integrated sound moderator, reducing noise by up to 50%, making it ideal for backyard shooting.

    7. What maintenance does the BullBoss require?

    Regular maintenance includes:

    • Cleaning the barrel with a cleaning rod and patches.

    • Lubricating O-rings and seals with high-grade airgun silicone oil.

    • Checking for leaks and ensuring all components are secure.

    • Inspecting the Quattro 2-stage trigger for proper adjustment.

    • Storing the rifle in a dry, cool environment to prevent corrosion.

    8. What should I do if the rifle is not firing or has low power?

    If the rifle is not firing or exhibits low power, consider the following:

    • Ensure the air cylinder is adequately pressurized.

    • Check that the safety mechanism is disengaged.

    • Verify that the Quattro trigger is properly adjusted.

    • Inspect the breech seal for damage or wear.

    • Consult the Hatsan service department if issues persist.