Key Features:

Standard 4.50mm Precision Fit

The 4.50mm head size is the universal standard for most precision match barrels. This diameter ensures that the pellet engages the rifling effectively, providing the necessary spin and stability for 10m Olympic-style shooting. It is an excellent baseline for shooters who have found that 4.49mm variants are too loose for their specific rifle setup.

Heavy-Weight 8.26-Grain Advantage

Weighing approximately 0.535 grams (8.26 grains), these pellets offer superior wind resistance and flight stability. The added mass is particularly beneficial for 10m Air Rifle athletes, as it helps maintain a consistent muzzle velocity and dampens the effects of minor vibrations during the shot cycle.

Uniform Manufacturing for Consistent Grouping

JSB is world-renowned for its rigorous quality control. Each S100 Heavy pellet is carefully weighed and inspected for uniform skirt shape and weight distribution. This meticulous attention to detail eliminates erratic “flyers,” allowing you to focus entirely on your technical execution and follow-through.

Sharp-Edged Wadcutter Design

Designed specifically for paper target competition, the flat-head wadcutter shape punches clean, perfectly circular holes. This high-contrast marking is essential for precise manual scoring and ensures that electronic scoring systems can read your shots with maximum accuracy.

Reliable Performance for Emerging Talent

The JSB Blue Match S100 is a trusted option for shooters at district, state, and early national levels. While providing a more economical alternative to elite-tier match ammunition, it maintains the high-quality finish and balanced flight required for serious competitive preparation.

Specifications

• Brand: JSB Match Diabolo (Czech Republic)
• Caliber: .177 Cal (4.5 mm)
• Head Size: 4.50 mm
• Weight: ~8.26 grains (0.535 g)
• Type: Wadcutter / Flat Head (Heavy Weight)
• Quantity: 500 Pellets per tin
• Recommended Use: State-level training, Match preparation, 10m Precision Shooting
• Category: Air Pellets / Rifle Pellets

Technical Details & Usage Tips

• The Perfect Fit: If you notice inconsistent grouping with smaller head sizes, switching to the 4.50mm S100 Heavy can often improve the seal within the barrel and tighten your shots.
• Cleaning Routine: To maintain the precision of these heavy pellets, we recommend cleaning your barrel every 100–150 shots. This prevents lead buildup and ensures consistent friction for every shot in your 60-shot series.
• Storage: Keep your tin tightly sealed in a cool, dry place. Protecting the lead from oxidation ensures the pellets maintain their smooth finish and consistent flight characteristics.
• The Competition Step-Up: The JSB Blue Match S100 is an exceptional training and state-level pellet. For athletes aiming for the podium at top-level National or International events, consider testing the RWS R10 Match for the ultimate in dimensional refinement.