Federal Fusion Tipped .270 Win 150 Grain Centerfire Rifle Ammo is designed with a pressure-formed lead core, which is molecularly bonded to a copper jacket. This gives the bullet excellent weight retention, deep penetration, and top-notch expansion on target. The polymer tip helps to increase ballistic coefficient with flatter trajectories and increased range. Turn up all-around performance with Federal’s Fusion Tipped bullets. Polymer-tipped design Pressure-formed lead core Uniform copper jacket Excellent accuracy and deep penetration Great expansion and weight retention