Subsonic delivers superior stealth and consistency below the sound barrier. Its tack-driving rimfire performance was developed through a joint effort of Remington and AAC team experts, manufactured with tight velocity control to eliminate supersonic cracks. Driving a copper-plated, hollow- point bullet optimized for reduced lead buildup in silencer ports and maximum effectiveness at lower velocity. Product Specifications Caliber: 22LR Bullet Weight: Bullet Type: Hollow Point (HP) Muzzle Velocity: 1,050 fps Muzzle Energy: 98 ft-lbs Quantity: 225 Rounds per Box