Barnes Bullets Spit Fire TMZ 50 Black Powder Spit-Fire TMZ 290 GR 24. The sabot is redesigned for better speed and accuracy it eliminates the need for a lanyard or rope to draw the bullet and it enables the bullet to be loaded upside down. This feature eliminates the sabot from becoming stuck in the barrel a problem commonly found with black powder mule loaders. The all copper TMZ sabot travels the full length of the bullet and it self-lubricates. It eliminates the annoying clicking or leaking of the sabot and it enables you to achieve a better overall grouping. This new design of TMZ sabot is made by an entirely new company so you know you're getting the best quality bullets and sabots on the market. Specifications for Barnes Bullets 30604 Spit Fire TMZ 50 Black Powder Spit-Fire TMZ 290 GR 24: Manufacturer: Barnes Bullet Type: Black Powder Projectile Caliber: .50 Caliber Bullet Weight: 290 grain Quantity: 24 Lead Free: Yes Country of Origin: USA Fabric/Material: Copper Package Contents: Barnes Bullets 30604 Spit Fire TMZ 50 Black Powder Spit-Fire TMZ 290 GR 24 Barnes Bullets 30604 Spit Fire TMZ 50 Black Powder Spit-Fire TMZ 290 GR 24