Harvester XTP .50 Caliber 250 Grain .452 Hornady XTP Muzzleloader Sabot Bullets 12 Bullets. Specifications for Harvester XTP .50 Caliber 250 Grain .452 Hornady XTP Muzzleloader Sabot Bullets: Manufacturer: Harvester Projectile Caliber: .50 Caliber Bullet Weight: 250 grain Quantity: 12 Bullet Quantity: 12 Bullet Length: 7.7 in Height: 1 in Features: Easy Loading Package Contents: Harvester Xtp 50cal 250gr .452 Hornady Xtp Sabot 12pk Harvester XTP25025: XTP .50 Caliber 250 Grain .452 Hornady XTP Muzzleloader Sabot Bullets 12 Bullets