{"title":"220 Grain 300 Blackout Ammo","description":"\u003cp\u003eNeed Fenix's heaviest listed .300 Blackout load? The 220 grain offering is FMJ training ammunition packaged 100 rounds at a time. Its product title says Subsonic, and Fenix publishes 1,000 FPS. The description also notes that rifle configurations vary and may need gas or buffer changes. For a different projectile, review the neighboring 190 grain FXP with Hornady Sub X. Make the side by side choice in 300 Blackout Subsonic Ammo, then open the 220 grain product for live stock, price, and full details.\u003c\/p\u003e","products":[{"product_id":"300-blackout-220gr-subsonic","title":".300 Blackout 220gr FMJ (Subsonic) (100 ct.)","description":"\u003cp\u003e\u003cstrong\u003eDUE TO EXTREME DEMAND, CURRENT LEAD TIME ON .300BLK\u003cspan\u003e \u003c\/span\u003eIS APPROXIMATELY 2 WEEKS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVelocity:\u003c\/strong\u003e  1,000 FPS\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOverall Length:\u003c\/strong\u003e  2.150\"\u003c\/p\u003e\n\u003cp\u003eOriginally called .300 Whisper, the .300 AAC Blackout was designed to achieve energies similar to the 7.62x39mm Soviet in an AR-15 while using standard AR magazines at their full capacity.  Our whisper-quiet subsonic rounds feature 220 grain projectiles for maximum ballistic energy.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eProudly manufactured by American workers in Novi, Michigan.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlease Note: Our .300 Blackout 220 grain subsonic ammunition has been tested to function in several rifles with barrel lengths from 8\" to 10.5\", with and without suppressors.  However, rifle setups vary widely and you may need to adjust your gas settings and\/or swap buffer weights to find the best performance for your weapon.  \u003c\/span\u003e\u003c\/p\u003e","brand":"Fenix Ammunition","offers":[{"title":"100","offer_id":31537381933123,"sku":"FA300220100","price":108.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2609\/3552\/files\/PXL_20250228_192845270.jpg?v=1740771086"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2609\/3552\/collections\/PXL_20250228_192845270_8787188f-6d85-424d-91e6-b0c8252370e5.jpg?v=1785309263","url":"https:\/\/fenixammo.com\/collections\/220-grain-300-blackout-ammo.oembed","provider":"Fenix Ammunition","version":"1.0","type":"link"}