Caliber: 45-70 Government - Weight: 405 GR - Bullet Type: Core-Lokt Soft Point - Muzzle Energy: 1598 ft lbs - Muzzle Velocity: 1330 fps - Casing Material: Copper - Rounds Per Box: 20 - Remington Core-Lokt a reputation deserved. Hunters with a knack for filling their deer tag tend to have more than success in common. They trust their hunt to Remington Core-Lokt. For more than six decades it has remained the leader in centerfire deer ammunition. And deservedly so.The Core-Lokt bullet design is the original controlled-expansion bullet and one of the most effective ever developed. Its progressively tapered copper jacket is locked to a solid lead core promoting perfectly controlled expansion and high weight retention for absolutely dependable on-game results. Youll find its time-proven performance in both soft point and pointed soft point versions and in a range of bullet weights for virtually every centerfire hunting caliber made.