Ballistic Silvertip ammunition provides hunters proven immediate knock-down. Innovation combined with engineering excellence makes Ballistic Silvertip the choice for those who appreciate the legendary excellence Winchester is known for around the world. – Caliber: 243 Winchester – Bullet Weight: 55 – Bullet Type: Fragmenting Polymer Tip – Muzzle Energy: 1867 ft / lbs – Muzzle Velocity: 3910 fps – Rounds Per Box: 20 – Rounds Per Case: 200