DoubleTap Rifle Ammunition Features The DoubleTap Ammunition .257 WBY Mag load is built around a 120 grain Nosler Partition bullet a projectile known for its dual-core design that separates the front and rear lead cores with a partition wall of jacket material. This construction allows the front core to expand rapidly on impact while the rear core retains weight driving deep penetration into vital organs. Hunters pursuing medium to large game benefit from the Partition s reputation for reliable performance across a wide range of impact velocities. DoubleTap loads its ammunition to exacting standards aiming for consistent velocity and accuracy from round to round. Chambered specifically for the hard-hitting .257 Weatherby Magnum cartridge this load takes advantage of the round s high velocity to maximize the Nosler Partition s terminal performance at extended range. Each box contains 20 rounds giving hunters enough ammunition to sight in a rifle and still head into the field with a full supply. The combination of a proven cartridge and a trusted bullet design makes this DoubleTap load a dependable choice for serious big game hunters. Shooters loading a .257 Weatherby Magnum rifle will find this ammunition a capable option for taking game cleanly and ethically. DoubleTap Rifle Ammunition Specifications Manufacturer: DoubleTap Ammunition Caliber: .257 WBY Mag Bullet Weight: 120 gr Bullet Type: Nosler Partition Rounds Per Box: 20 Available At: GrabAGun