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 8mm 150 Grain Spitzer performs excellent on medium game at velocities typical of the 8mm Mauser delivering deep penetration and reliable expansion. This bullet will however be too destructive for medium game when fired from an 8mm Remington Magnum. This is not loaded ammunition.