Featuring boat-tail designs and copper construction, the BARNES® Spit-Fire TMZ⢠.50 250-Grain Black Powder Bullets feature streamlined polymer tips for fast expansion. The high ballistic coefficient encourages great long-range performance, and the specially designed sabot provides a tight gas seal to promote accuracy. BARNES Spit-Fire TMZ .50 250-Grain Black Powder Bullets - Black Powder Guns at Academy Sports