JSB Pellets Manufacturer
Precision is the heartbeat of JSB Match Diabolo, a world-class Czech manufacturer that has defined the gold standard for airgun ammunition since 1991. Every pellet emerges from a specialized manufacturing process where 99.97% pure lead is transformed into competition-grade projectiles using proprietary machinery designed for unmatched consistency. From the legendary Exact series to specialized hunting lines like Hades, the brand delivers a level of accuracy trusted by ISSF champions and recreational shooters alike. By maintaining a strict weight tolerance of $\pm$0.001g and a rigorous visual inspection protocol, JSB ensures that every shot fired is a testament to European engineering excellence.
Top JSB Pellets
JSB Match Diabolo Exact .177
Regarded as the company’s absolute bestseller, this iconic domed pellet is engineered with an ideal center of gravity to provide the stable flight characteristics and tight groupings required by world-class Field Target competitors.
JSB Match Diabolo Exact Jumbo Heavy .22
This high-mass projectile is a favorite among owners of powerful air rifles, offering exceptional stability and reduced wind sensitivity for long-range precision and effective pest control.
JSB Match Diabolo Exact King .25
As the first .25 caliber model produced by the brand, this pellet is universally praised for its hand-picked quality and its ability to deliver firearm-like impact and accuracy in high-velocity hunting applications.
JSB Match Diabolo offers a masterfully engineered selection of ammunition designed to transform every airgun into a tool of absolute precision.
Premium Product Selection
JSB Exact
The Exact line serves as the world-renowned standard for domed pellets, providing exceptional aerodynamic stability and pinpoint accuracy for medium to long-range shooting.
JSB Express
Engineered for shooters seeking a flatter trajectory, the Express category features lightweight designs optimized for high velocity and increased performance in lower-power rifles.
JSB Heavy and Jumbo Heavy
These high-mass projectiles are specifically crafted to maintain incredible stability and energy retention when fired from high-power PCP air rifles.
JSB King
The King series dominates the large-caliber market, offering the heavy-duty impact and penetration required for .25 and .30 caliber hunting and long-distance applications.
JSB RS and Monster
This specialized range covers both ends of the spectrum, from the ultra-light RS for high speed to the massive Monster variants designed for maximum kinetic energy.
User Experiences and Field Reviews
Thomas Miller After switching to JSB Exact Jumbo Heavy for my .22 caliber PCP rifle, my groups at 50 yards shrunk from an inch to a single ragged hole. The consistency of the lead alloy and the uniform skirt shape is miles ahead of the competition, and I’ve noticed significantly less fouling in my barrel even after a full day of field target competition.
Petr Svoboda I have been using the JSB King pellets for my pest control business in the Czech Republic, and the knockdown power at long ranges is simply unmatched by any other brand. The weight tolerance is so tight that I never have to worry about vertical stringing, which gives me the confidence to take ethical shots even in challenging wind conditions.
Sarah Jenkins As a competitive target shooter, I rely on JSB Express pellets because their flat trajectory makes range estimation much more forgiving during high-stakes matches. I recently went through a full tin of 500 without finding a single deformed pellet, which is a testament to the incredible quality control and proprietary manufacturing tools JSB uses in Bohumín.
JSB FAQ
What do the numbers on the bottom of a JSB pellet tin mean?
The label on the bottom of each tin provides critical traceability data including the batch number, the year of production, and codes for the specific production line and quality control staff. For example, in a string like “8006709,” the “8” refers to the specific pressing die used, and the “09” indicates the year 2009. Expert shooters often track the “die number” because different dies can produce slightly different flight characteristics in specific rifle barrels.
How do I choose between the Exact and the Hades pellets for hunting?
While both series offer exceptional accuracy, the choice depends on your target; the Exact is a classic domed pellet designed for maximum aerodynamic stability and long-range precision, making it ideal for clean headshots. The Hades series features a specialized “tri-hollow” point designed to expand upon impact, delivering maximum shock and energy transfer to the quarry, which is particularly effective for body shots in pest control at short to medium ranges.
Why does JSB offer multiple head sizes like 4.51mm and 4.52mm?
JSB provides these micro-variations to help shooters find the “perfect seal” for their specific rifle barrel, as internal bore diameters can vary slightly between manufacturers. A 4.52mm pellet might provide a tighter fit and better engagement with the rifling in a barrel that is slightly oversized, potentially increasing consistency and reducing the occurrence of “flyers.”
What is the weight tolerance for JSB Premium pellets?
In the JSB Premium line, pellets are individually selected from the best production batches and are weight-sorted to an incredibly tight tolerance of $\pm$0.001g. This level of extreme consistency ensures that the vertical point of impact remains identical across a string of shots, which is a requirement for high-level ISSF and Olympic competitions.
Can I use heavy pellets like the Jumbo Monster in a low-power air rifle?
While physically possible, it is not recommended for low-power or sub-12 ft-lb rifles, as the increased weight will result in a very “loopy” trajectory and significantly lower muzzle velocity. Heavier pellets like the Monster or Beast are specifically designed for high-power PCP (Pre-Charged Pneumatic) rifles that have the air volume necessary to stabilize the projectile and maintain a flat enough trajectory for practical use.