Speer Hot-Cor Bullets 303 Caliber, 7.7mm Japanese (311 Diameter) 180 Grain Round Nose (100pk)The Round Nose design of these Hot Cor bullets promote reliable expansion even at lower velocities. Used primarily for close range hunting in thick cover, these bullets also feature Speer's special Hot Cor construction which eliminates the lead oxide layer that's found between the core and jacket of conventional "cold core" bullets, virtually eliminating jacket slippage. This translates into a bullet that offers deeper penetration and greater