Nosler Western Big Game 300 Winchester Magnum 180gr Partition Bullet Rifle Ammo - 20 Rounds - Nosler Western Big Game is loaded with the Nosler Partition bullet - the benchmark for hunting bullets since 1948 and the cornerstone upon which the entire company was founded. The bullet's dual-core design assures rapid expansion of the foremost core while Nosler's integral partition supports the expanded mushroom allowing the enclosed rear core to remain intact retaining more than two-thirds the original bullet weight for deep penetration. Tried and true, Nosler's Western Big Game ammunition provides undeniable reliability on all game. Exclusive to Sportsman's Warehouse. Made in the USA ;