Hornady bullets 6.5mm.264 129gr jsp 100ct FEATURES: -Caliber/Type6.5MMSP -Diameter .264" -Weight129 gr. -Ballistic Coefficient .445 -Sectional Density .264-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.