Super Suppressed ammunition is optimized for firearms equipped with suppressors. Offering clean and reliable performance, the Super Suppressed line is engineered for noise reduction, decreased barrel/suppressor fouling and recoil mitigation. Consistent performace and exceptional accuracy is backed by generations of Winchester legendary excellence. Specifications for Winchester Super Suppressed .300 AAC Blackout 200 grain Full Metal Jacket Centerfire Rifle Ammunition: Manufacturer: Winchester Caliber: .300 AAC Blackout Number of Rounds: 20 Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 200 grain Cartridge Case Material: Brass Muzzle Velocity: 1060 ft/s Muzzle Energy: 499 ft-lbs Application: Recreational Shooting Package Type: Box Primer Style: Centerfire Lead Free: No Gun Type: Rifle Features of Winchester SUPER SUPPRESSED .300 AAC Blackout 200 grain Full Metal Jacket Centerfire Rifle Ammunition: Consistent AccuracyTrusted for target and range shooting Encapsulated Bullet BaseCopper jacket encloses the base of the bullet core to reduce lead fouling in barrels and in suppressors Optimized for Suppressor UseClean and reliable performance in both suppressed and non-suppressed firearms Reduced Noise SubsonicVelocities below the speed of sound produce lower decibel levels Package Contents: Winchester SUPER SUPPRESSED .300 AAC Blackout 200 grain Full Metal Jacket Centerfire Rifle Ammunition