Barnes 30-06 Sprg 180GR Ttsx Bt (20/BOX)Barnes . 30 06 Springfield 180gr TTSX BT 20 Rounds The Barnes . 30 06 Springfield 180gr TTSX BT is engineered for hunters who demand deep penetration, consistent expansion, and maximum weight retention. Built with Barnes proven Tipped Triple Shock X (TTSX) bullet design, this load delivers outstanding accuracy and terminal performance on game of all sizes. Key Features TTSX Bullet Design Solid copper construction with polymer tip for rapid expansion