Speer Hot-Cor Bullets 30 Caliber (308 Diameter) 165 Grain Spitzer (100pk)Perfect for those long range shots, the Speer Hot Cor Spitzer has a higher ballistic coefficient and are designed to retain velocity over distance. This pattern, coupled with the Hot Cor process which virtually ensure the elimination of core slippage, provide a bullet that offers deep penetration and excellent expansion, regardless of the range. This is not loaded ammunition. Technical Information Sectional Density: . 248 Ballistic Coefficient: . 433