Speer Grand Slam Bullets 338 Caliber (338 Diameter) 250 Grain Jacketed Soft Point (50pk)Speer Grand Slam Bullets were developed to give hunters a tough, dependable bullet that would provide better integrity and retained weight retention over similar bullets. Since first being introduced in the 1970's the Grand Slam bullet has gained a reputation for providing hunters superior performance, exceptional accuracy and real knockdown power. The bullet has a tapered, precision drawn jacket with internal flutes which are fused to the soft lead