Fiocchi Extrema ammunition utilizes match components making it perfect for serious hunters. This Exacta rifle ammunition uses the SIERRA MATCH KING HOLLOW POINT bullets, they are super-accurate and are held to exacting tolerances in diameter and weight. Their accuracy has been acclaimed worldwide. This ammunition is new production, non-corrosive, in boxer-primed, reloadable brass cases. 1 box of 25 rounds. Technical Information: Caliber: 300 Blackout, Bullet Weight: 220 Grain SUBSONIC, Bullet Style: Sierra Match King Hollow Point Boat Tail (NON MAGNETIC), Case Type: Brass. Ballistics Information: Muzzle Velocity: 1020 ft/sec, Muzzle Energy: 508 ft/lbs.