X-Treme Bullets 44 Magnum Caliber Pistol Bullets 240 Grain X-DEF Hollow Point 100 Bullets. Specifications for X-Treme Bullets 44 Magnum Caliber Pistol Bullets 240 Grain Hollow Point: Manufacturer: X-Treme Bullets Bullet Type: Hollow Point (HP) Caliber: .44 Magnum Cartridge Type: Brass Bullet Weight: 240 grain Projectile Caliber: .44 Caliber Diameter: 0.429 in Core Material: Lead Jacket Material: Copper Bullet Quantity: 100 Bullet Package Contents: X-Treme Bullets 44 Magnum Caliber Pistol Bullets 240 Grain Hollow Point X-Treme Bullets 44 Magnum Caliber Pistol Bullets 240 Grain X-DEF Hollow Point 100 Bullets