Winchester USA Forged is high-quality American-made 9mm ammunition that uses premium Winchester components to provide great performance at a value price. This ammunition utilizes precision-manufactured steel shellcases featuring a proprietary surface treatment optimized for high-volume range sessions with the performance and functionality you expect from Winchester. Brass jacketed lead core bullet (safe for use in all firearms and on all ranges) Steel shellcase Non-corrosive boxer primer Clean-burning powder Mfg: Winchester