Manufactured to Noslers strict quality standards Trophy Grade ammunition uses Nosler Custom brass and Nosler bullets to attain optimum performance no matter where your hunting trip takes you. Whether you want your ammunition loaded with AccuBond Partition Ballistic Tip or E-Tip Nosler Trophy Grade Ammunition will have the right load for the right game. – Caliber: 280 Ackley Improved – Bullet Type: Partition – Bullet Weight: 160 gr – Muzzle Energy: 3091 ft / lbs – Muzzle Velocity: 2950 ft / lbs – Rounds Per Box: 20