Winchester Expedition Big Game Ammunition 300 Winchester Magnum 180 Grain Accubond CT (20pk)Winchester Ammunition's Expedition Big Game ammunition uses the tough, deep penetrating Accubond CT bullet for supreme performance on the biggest of game. Controlled expansion allows for penetrating thick hide and bone before delivering massive knockdown power. A polymer tip helps resist deformation and maximizes long range performance, also promoting expansion. A bonded, lead alloy core allows for deeper penetration and retained weight. Bullet