Forged for the most demanding hunts on earth, Barnes Ammo 30727 pairs the formidable power of the .338 Lapua Magnum with the relentless terminal performance of the 280gr TSX-FB bullet. Crafted from a solid copper core, the TSX bullet guarantees 100% weight retention and deep, controlled penetration, unleashing over 5,000 ft-lbs of muzzle energy with predictable, radial expansion.