Magtech Tactical .300 Blackout Subsonic 200 Grain FMJ 1000 Round Case (20 Boxes) Maximize your suppressed training and cut costs with the Magtech Tactical .300 Blackout Subsonic 1000 Round Case. This bulk package contains 20 boxes of the reliable 300BLKSUBA 50-round packs, delivering a full 1,000 rounds of true subsonic 200gr FMJ ammunition optimized for quiet, dependable performance in .300 BLK platforms. Key Features & Specifications Caliber: .300 AAC Blackout (.300 BLK) Bullet: 200 Grain Full Metal Jacket (FMJ) Subsonic Muzzle Velocity: 1017 fps (16" barrel)