Barnes Spit-Fire T-EZ Muzzleloader Bullets w/ Sabots .50 Caliber Flat Base 250 grain 15 Bullets/Box Polymer. The new design of the sabot itself reduces the ramrod pressure that is needed to load and seat the bullets but these bullets still deliver the same level of accuracy as all of Barnes' bullets. What makes the Barnes Spit-Fire T-EZ Muzzleloader Bullet with Sabot line of ammunition unique is its 100 percent copper construction paired with a unique polymer tip that boosts BC and delivers enhanced expansion for greater long-range ballistics and deeper penetration. Specifications for Barnes Spit-Fire T-EZ Muzzleloader .50 Cal Rifle Bullets w/ Sabots: Manufacturer: Barnes Bullet Type: Black Powder Projectile Caliber: .50 Caliber Condition: New Lead Free: Yes Country of Origin: USA Fabric/Material: Copper Package Contents: Barnes Spit-Fire T-EZ Muzzleloader .50 Cal Rifle Bullets w/ Sabots Barnes 30587: Spit-Fire T-EZ Muzzleloader Bullets w/ Sabots .50 Caliber Flat Base (FB) 250 grain 15 Bullets/Box Polymer