JSB match jumbo diablo .22 airgun pellets

🎯 Key Features & Advantages

• Match-grade precision
  Part of JSB’s Exact Jumbo line, known for exceptional concentricity and weight consistency, designed for long-range accuracy.
• Heavier domed design (15,89 gr)
  The weight and shape offer stable and flatter trajectories, ideal at 45 meters often seeing tight groups used with most rifles (≤16 mm).
• Thorough quality control
  Individually inspected to ensure perfect pellet geometry—ideal for predictable performance and tight groupings.
• Consistent velocity
  Offers repeatable shooting performance suitable for field shooting and pest control scenarios.
• Clean barrel performance
  Precision manufacturing results in minimal lead residue and smooth feeding in magazines.

⚠️ Considerations & Fit Factors

• Barrel diameter matching is crucial
  These pellets often measure ~5.50 mm, which may not suit rifles with slightly larger bores, affecting accuracy.
• Mix-and-match isn’t ideal
  Like all JSB pellets, batch-to-batch tolerance can vary—best performance often comes from sticking to one tight batch die. Some like to weigh airgun pellets for more consistent performance and accuracy, especially those shooting in tournaments.
• Performance varies by rifle
  While some shooters report sub-inch groups at 50 yd, others experience poor grouping if the pellet–barrel match is off.

🗣️ Shooter Feedback

From a Pyramyd AIR review:

“Great pellets. Group very well from my Hatsan AT44S… 5‑shot groups @25 yds and quarter-size group @50 yds.”

Another noted:

“Some rifles hate them—2‑inch groups at 20 yds in my Walther Talon… pellets were smaller than needed.”

And from Reddit:

“JSB is top notch ammo… depends on twist and velocity.”
“You need to test different head sizes—your gun may prefer a specific size.”

✅ Who These Pellets Are For

• Competition and precision shooters seeking consistent match-grade accuracy at mid-to-long ranges.
• Field shooters and pest controllers who want reliable point-of-impact and terminal performance.
• Airgun owners with tight-bore or finely rifled barrels that match the pellet size.

💡 Tips for Best Use

1. Test batch compatibility: Try a tin to check fit and grouping before committing.
2. Consider head sizing: If groups are inconsistent, try different pellet diameters (e.g., 5.50 mm, 5.51 mm, 5.52 mm).
3. Group-test for best batch: Once you find a batch that shoots well in your rifle, stick with it for consistency.

✅ Bottom Line

JSB Match Jumbo .22 pellets deliver excellent long-range accuracy and stability when properly matched to your rifle’s bore and twist. They shine in the right setup—but as with any match-grade pellet, the shooter’s specific gun and pellet batch will ultimately determine performance.