Hornady bullets 7mm.284 154gr jsp 100ct FEATURES: -Caliber/Type7MMSP -Diameter .284" -Weight154 gr. -Ballistic Coefficient .433 -Sectional Density .273-Inner Grooves, Strategically weaken the upper section of the jacket.-Tapered Jacket, Jacket thickness is precisely controlled for expansion at all velocities.-One-Piece Core, Does not separate like divided cores. The InterLockA(R) retains more mass and energy.-Cannelure, Provides accurate and consistent crimping and also works with InterLockA(R) ring.-InterLockA(R) Ring, The raised InterLockA(R) ring is embedded in the bullet's core.