Federal Premium 270 Winchester 140gr Trophy Bonded Rifle Ammo - 20 Rounds - Surgical accuracy. Terminal results. Trophy Bonded Tip combines bonded construction and a bone-crushing solid copper shank with a boat-tail design and polymer tip that tighten groups. The resulting toughness and accuracy make it a perfect choice for the full spectrum of medium and big game at any practical range. Robust Bonding Maximizes Weight Retention High-Performance Polymer Tip For Flat Trajectory, Better Accuracy And More Energy Exterior Skiving For Optimum Expansion Solid Shank For Bone-Crushing Penetration Gold Medal Primer Nickel Plated For Easy Extraction And Corrosion Protection Specially Formulated Propellant With Copper-Reducing Additives