Browning BXS Solid Expansion Big Game and Deer 30-06 Springfield 180gr SEPT Rifle Ammo - 20 Rounds - BXS Solid Expansion Big Game & Deer is strategically designed to leave a lethal mark on large game with tough hide. The polymer tipped copper bullet is constructed for controlled expansion and deep penetration, creating a devastating impact. The nickel-plated shellcases resist corrosion and improve feeding, so you can quickly deliver with knockdown assurance.