Barnes Bullets Rifle 7mm .284 120 GR TSX Boat Tail 50 Box. But it also applies to bullets. There is nothing more devastating to a hunter's success (or enjoyment) than cheap ammunition that under-performs or that performs in the field. Barnes Triple-Shock X Bullets deliver in spades. These truex versions of our popular Triple-Shock bullets retain 100 percent of their original weight and expand instantly on impact creating four razor sharp petals that penetrate through the toughest bone and tissue with 100percent reliability. These bullets are designed for moderate expansion and transient accuracy and are intended for use in all Barnes gauges. Specifications for Barnes Bullets 30287 Rifle 7mm .284 120 GR TSX Boat Tail 50 Box: Manufacturer: Barnes Bullet Type: Boat Tail Hollow Point (BTHP) Hollow Point (HP) Bullet Weight: 120 grain Projectile Caliber: .284 Caliber Sectional Density: 0.213 Bullet Quantity: 50 Bullet Country of Origin: USA Housing/Frame Material: Copper Weight: 120 g Fabric/Material: Copper Package Contents: Barnes Bullets 30287 Rifle 7mm .284 120 GR TSX Boat Tail 50 Box Barnes Bullets 30287 Rifle 7mm .284 120 GR TSX Boat Tail 50 Box