{"product_id":"barnaul-300blk-rifle-ammo-145-grain-fmj-steel-casing-500rd-case","title":"Barnaul 300BLK Rifle Ammo - 145 Grain | FMJ | Steel Casing | (500 Round Case)","description":"\u003ch1\u003eBarnaul 300BLK Rifle Ammo - 145 Grain | FMJ | Steel Casing | (500 Round Case)\u003c\/h1\u003e\n\u003cp\u003eThe .300 AAC Blackout cartridges were developed by Advanced Armament Corporation (AAC) for use in the M4 carbine to achieve ballistics similar to the 7.62x39mm supersonic cartridge, and to offer a subsonic yet powerful cartridge for the AR15 platform as an alternative to the MP5SD 9mm, all while utilizing a standard (STANAG) magazine. The Barnaul .300BLK is a 145-grain supersonic cartridge with a polymer-coated steel case. This is the most affordable .300BLK ammunition on the market today. We recommend using .300 Blackout magazines for optimum performance. Technical Specifications Bullet Type: FMJ Weight: 145 grain Muzzle Velocity (feet per second) 1985 Muzzl Energy (foot-pounds) 1268 Ballistic Coefficient (G1) 366 Max Powder Pressure Bar (lb\/inch2) 50,763 Cartridge Max Length 2.15 inches Cartridge Average Weight 239 grain\u003c\/p\u003e","brand":"Barnaul Ammunition","offers":[{"title":"Default Title","offer_id":44686018543835,"sku":"2AWBRN300BLKFMJ145-CASE","price":291.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/1072\/7131\/products\/2AWBRN300BLKFMJ145-CASE.jpg?v=1703950959","url":"https:\/\/www.atcostammo.com\/products\/barnaul-300blk-rifle-ammo-145-grain-fmj-steel-casing-500rd-case","provider":"AtCostAmmo.com","version":"1.0","type":"link"}