--- product_id: 102703715 title: "JSB Exact Jumbo Heavy .22 Cal Domed Airgun Pellets, 18.13 Grain, 250 Count" brand: "jsb" price: "Β₯7091" currency: JPY in_stock: true url: https://www.desertcart.jp/products/102703715-jsb-exact-jumbo-heavy-22-cal-domed-airgun-pellets-18 store_origin: JP region: Japan --- # 18.13 grain heavy pellet for deep penetration Consistent shape & weight for unmatched accuracy Precision crafted in Czech Republic JSB Exact Jumbo Heavy .22 Cal Domed Airgun Pellets, 18.13 Grain, 250 Count **Brand:** jsb **Price:** Β₯7091 **Availability:** βœ… In Stock ## Summary > 🎯 Lock in precision. Dominate your shot. ## Quick Answers - **What is this?** JSB Exact Jumbo Heavy .22 Cal Domed Airgun Pellets, 18.13 Grain, 250 Count by jsb - **How much does it cost?** Β₯7091 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/102703715-jsb-exact-jumbo-heavy-22-cal-domed-airgun-pellets-18) ## Best For - jsb enthusiasts ## Why This Product - Trusted jsb brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Sealed Freshness:** Factory-sealed screw-top tin preserves pellet integrity and protects from damage or moisture. - β€’ **Heavyweight Champion:** 18.13 grain domed pellets deliver superior penetration and stability for mid- to high-power air rifles. - β€’ **Versatile Performance:** Ideal for hunting, pest control, and long-range target shooting with .22 caliber airgunsβ€”match your power for the flattest trajectory. - β€’ **Trusted by Pros Worldwide:** Chosen by competition shooters and hunters for repeatable accuracy shot after shot. - β€’ **Czech Precision Engineering:** Manufactured with exacting standards in the Czech Republic, ensuring every pellet meets strict weight and shape consistency. ## Overview JSB Match Diabolo Exact Jumbo Heavy .22 caliber airgun pellets are precision-made in the Czech Republic from pure lead, weighing 18.13 grains each. Packaged in a sealed 250-count tin, these domed pellets offer consistent weight and shape for deep penetration and exceptional accuracy, making them a top choice for hunting, pest control, and long-range target shooting with mid- to high-power .22 air rifles. ## Description Which JSB .22 is this? The Exact Jumbo Heavy: 18.13 grains (1.175 g), domed, 5.52mm head, 250 per tin. It is the heavier of JSB's two everyday .22 domes. The Exact Jumbo is 15.89 grains; the Jumbo RS is 13.43 grains for low-power rifles; the Jumbo Monster at 25.39 grains is for high-power PCPs. Which rifles suit it? Mid- and high-power PCPs and high-power break barrels in .22 (5.5mm). Owners report it in the Benjamin Marauder, Umarex Gauntlet and FX Impact. A low-power springer will shoot it, but usually groups the lighter Exact Jumbo better. Why 18.13 grains? Weight keeps velocity downrange, so the pellet drifts less in wind than a lighter dome from the same rifle. That is why it is a common pick for field target and for small game hunting where local rules allow. JSB publishes a G1 ballistic coefficient of 0.033 for this pellet. What about head size? Jumbo Heavy is sold in a 5.52mm head. If your barrel prefers a different fit, the Exact Jumbo 15.89 is made in 5.50, 5.51 and 5.52 so you can match the bore. How is it made? JSB has swaged pellets in Bohumin, Czech Republic, since 1991, on machines the founder designed. Lead from 99.97 percent ingots gets a trace of antimony, is formed to weight, test-shot before the run is approved and inspected by hand. Safety: contains lead, wash hands after handling. Airgun pellets, not a toy. Adult supervision required. Wear eye protection and shoot toward a solid backstop. ## Features - What It Is: JSB's high-power .22 dome. An 18.13 grain domed diabolo with a 5.52mm head, swaged from soft lead and inspected by hand in Bohumin, Czech Republic, where JSB has made pellets since 1991 - Fits: .22 cal (5.5mm) air rifles with the power to push 18 grains: mid- to high-power PCPs and high-power break barrels. Owners run it in the Benjamin Marauder, Umarex Gauntlet, FX Impact and Gamo Swarm Magnum. Too heavy for most low-power springers - Pick This Weight If: you shoot at longer range, in wind, or at small game where local rules allow. The heavy dome holds its speed and drifts less than the 15.89 grain Exact Jumbo, which is why it is a common field target pick - How JSB Makes It: lead from 99.97 percent ingots with a trace of antimony for hardness, formed on swaging machines the founder designed, each production run test-shot before it is approved, and every Exact pellet checked by hand - In the Tin: 250 pellets, 5.52mm head. Barrels vary, so shoot a few groups before buying in bulk. Contains lead, wash hands after handling. Airgun pellets, not a toy; adult supervision required ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07JQQZMKC | | Best Sellers Rank | #88,887 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #120 in Air Gun Pellets | | Brand Name | JSB | | Caliber | 0.22 | | Color | black | | Compatible Devices | Air guns that use .22 caliber pellets and are compatible with JSB pellets | | Cross Section Shape | Round | | Customer Reviews | 4.5 4.5 out of 5 stars (505) | | Included Components | 1 tin of 250 pellets | | Item Dimensions W x H | 1"W x 1"H | | Item Highlight | Match Diabolo line, 5.52mm head, 18 gr .22 (5.5mm) dome, for PCP and high-power break barrel rifles, soft lead, Czech made | | Item Weight | 11.36 ounces | | Manufacturer | JSB Match Diabolo | | Manufacturer Part Number | 300104 | | Material Type | Metal | | Model Name | Exact Jumbo Heavy | | Model Number | 546287-250 | | Number of Items | 1 | | Shape | Round | | Size | .22 Cal | | Sport Type | Target Shooting | | Style Name | Domed | | UPC | 894421000295 894421300104 | | Unit Count | 250 Count | ## Product Details - **Brand:** JSB - **Color:** black - **Model Name:** Exact Jumbo Heavy - **Size:** .22 Cal - **Sport:** Target Shooting ## Images ![JSB Exact Jumbo Heavy .22 Cal Domed Airgun Pellets, 18.13 Grain, 250 Count - Image 1](https://m.media-amazon.com/images/I/61TWmVMDDBL.jpg) ## Questions & Answers **Q: Is this good for break barrels air rifle?** A: Hi m8,ye i use them in my beeson...pack a punch. **Q: What is the ballistic coefficient?** A: My app says it’s .035 ## Frequently Bought Together - JSB Diabolo Exact Jumbo Heavy .22 Cal, 18.13 gr.- 250 Ct. - Gamo Swarm Magnum 10X GEN3i Inertia Fed .22 Caliber Break Barrel air Rifle. High Power 10-Shot Pellet air Gun. 1,300 fps Velocity. - Gamo Swarm 10X GEN3i Magazine, .22 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/102703715-jsb-exact-jumbo-heavy-22-cal-domed-airgun-pellets-18](https://www.desertcart.jp/products/102703715-jsb-exact-jumbo-heavy-22-cal-domed-airgun-pellets-18) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-26*