{"product_id":"sb300blka","title":"Sellier \u0026 Bellot 300 Blackout 124gr FMJ – 20 Rounds","description":"\u003cp\u003eSellier \u0026amp; Bellot's 300 Blackout 124-grain FMJ load delivers subsonic performance ideal for suppressed shooting and tactical training. The full metal jacket bullet construction ensures reliable feeding and consistent terminal ballistics at reduced velocities, making this ammunition a practical choice for shooters who prioritize sound suppression without sacrificing reliability. The 124-grain projectile stays subsonic in most barrel lengths, minimizing sonic crack while maintaining adequate energy for both training and defensive applications.\u003c\/p\u003e\u003cp\u003eThis ammunition feeds reliably in AR-15 platform rifles chambered in 300 Blackout, bolt-action rifles, and other firearms designed for the cartridge. Loaded with non-corrosive Boxer primers in reloadable brass cases, these rounds are available in 20-round boxes or 1,000-round cases for volume shooters. Sellier \u0026amp; Bellot's consistent manufacturing standards make this a dependable option for extended range sessions and suppressor use.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaliber:\u003c\/strong\u003e 300 Blackout (.300 BLK)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBullet Weight:\u003c\/strong\u003e 124 grains\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBullet Style:\u003c\/strong\u003e Full Metal Jacket (FMJ)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuzzle Velocity:\u003c\/strong\u003e Subsonic (~1,050 fps typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBox Count:\u003c\/strong\u003e 20 rounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Count:\u003c\/strong\u003e 1,000 rounds (50 boxes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Type:\u003c\/strong\u003e Boxer-primed brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimer:\u003c\/strong\u003e Non-corrosive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Suppressed shooting, training, tactical applications\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sellier \u0026 Bellot","offers":[{"title":"Box of 20","offer_id":47178801938687,"sku":"754908512447","price":16.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/0434\/3807\/files\/SB300BLKA_1_HR_cc298a0b-6d37-4ebb-92b7-b53ed1587146.jpg?v=1756180456","url":"https:\/\/doublestackstore.com\/products\/sb300blka","provider":"Double Stack Store","version":"1.0","type":"link"}