Hornady's Precision Hunter features a Heat Shield tip that resists the effects of aerodynamic heating and retains its shape to maintain the highest-in-class BC over its entire trajectory. A streamlined secant ogive with optimum boattail design, highly concentric AMP bullet jackets, and Heat Shield tip combine for radically superior aerodynamic efficiency. With high velocity, 0-400 yard impact. The thick shank of the jacket and high InterLock ring work to keep the core and jacket together providing 50-60% weight retention. Series Hunting Caliber 257 Wthby Mag Application Hunting Bullet Type Extremely Low Drag-eXpanding Bullet Weight 110 gr Muzzle Energy 2564 ft lbs Boxes Per Case 10 Rounds Per Box 20 Casing Material Brass Muzzle Velocity 3240 fps Unit Of Measure box