The Barnes Triple-Shock X-Bullets in .416 caliber (0.416'') are revolutionary hunting bullets made from 100% copper and engineered for maximum performance on big game.Barnes .416 Caliber Triple-Shock X-Bullets300 grain weight with flat base design100% copper construction for superior expansionExpands to create four razor-sharp cutting petalsRetains 100% of original weight after impactPenetrates dense bone and tissue effectively50 bullets per boxOptimal seating depth: 0.03 to 0.07 inches off riflingDesigned for hunters who demand reliable one-shot performance these bullets deliver exceptional accuracy and devastating terminal ballistics for taking down big game with confidence.