Winchester Deer Season XP Copper Impact .270 Short Magnum 130 Grain Copper Extreme Point Centerfire Rifle Ammo 20 Rounds. The Copper Extreme Point bullet is a solid copper expanding projectile with an oversized impact diameter. A bigger impact diameter means more impact trauma better energy transfer and larger wound cavities for faster knockdown. Specifications for Winchester Deer Season XP Copper Impact .270 Short Magnum 130 Grain Copper Extreme Point Centerfire Rifle Ammunition: Manufacturer: Winchester Caliber: .270 Winchester Short Magnum Number of Rounds: 20 Bullet Type: Copper Extreme Point Polymer Tip (CEPPT) Bullet Weight: 130 grain Cartridge Case Material: Brass Muzzle Velocity: 3215 ft/s Muzzle Energy: 2983 ft-lbs Application: Deer Package Type: Box Primer Style: Centerfire Lead Free: No Features of Winchester Deer Season XP Copper Impact .270 Short Magnum 130 Grain Copper Extreme Point Centerfire Rifle Ammunition Accelerated expansion. Large diameter polymer tip delivers rapid impact trauma Flat trajectory. High ballistic coefficient bullet with engineered boattail improves long range flight characteristics Lethal on big game. Devastating performance on deer elk and anything in between Supreme energy transfer. Solid copper construction maximizes retained weight Package Contents: Winchester Deer Season XP Copper Impact .270 Short Magnum 130 Grain Copper Extreme Point Centerfire Rifle Ammunition What is Winchester Deer Season XP Copper Impact .270 Short Magnum 130 Grain Copper Extreme Point Centerfire Rifle Ammunition good for? The manufacturer says that it is good for deer.Winchester X270SCLF: Deer Season XP Copper Impact .270 Short Magnum 130 Grain Copper Extreme Point Centerfire Rifle Ammo 20 Rounds