The traditional, flat base design of the Pro-Hunter has been skillfully blended with Sierra's world-famous accuracy. The custom-tapered Pro-Hunter jacket design helps assure maximum expansion, optimum weight retention and deep penetration for game-stopping, 1-shot performance. The 25 Caliber 117 Grain Pro-Hunter has become one of the most popular 25 Caliber hunting bullets. It performs extremely well on medium sized game at various distances. This is not loaded ammunition.