CBC stands for "Companhia Brasileira de Cartuchos", a very large manufacturer in Brazil, supplier of their armed forces and police. Up to about early 1990's it was marketed worlwide under the CBC brand, but (at least in USA) it has changed to the more politically correct MRP or "Magtech Recreational Products". It is good ammo, and if is FMJ, probably is mil-spec 147gr., berdan primed.