Nosler Partition Rifle Bullets in .375 caliber, 300 grains, sold 50 to a box (Nosler part no. 44845), are the bullet that the entire Nosler company was founded on, and they remain the benchmark for hunting bullets since 1948. The Partition uses a fully tapered copper-alloy jacket that ruptures instantly on impact, curling uniformly outward, while Nosler’s integral partition wall keeps the dual-core design working as intended: the front core mushrooms rapidly for a fast energy transfer while the rear core, protected by the partition, stays intact and retains more than two-thirds of the original bullet weight for deep penetration. For handloaders building dangerous-game or heavy plains-game rounds, that combination of rapid expansion and reliable penetration is exactly why the Partition has stayed in production for decades.

Key Specifications

• Built with a dual-core, partitioned design that separates the front and rear cores.
• Features a fully tapered copper-alloy jacket for controlled, uniform expansion.
• Retains more than two-thirds of original bullet weight for deep penetration.
• Weighs 300 grains in .375 caliber.
• Sold 50 bullets per box.

Frequently Asked Questions

What makes the Partition design different? An integral partition wall separates the bullet into two cores, letting the front core expand rapidly while the rear core stays intact for deep penetration.

What game are these 300-grain .375 caliber bullets suited for? This weight and caliber combination is well suited to heavy plains game and dangerous-game hunting where deep, reliable penetration matters.

How many bullets come in a box? This listing is a 50-count box of .375 caliber, 300-grain Partition bullets.

Buy the Nosler Partition .375 Caliber 300gr Bullets

Order a box from Nosler in our reloading bullets lineup and load the benchmark hunting bullet yourself. Order it from our Lubbock, Texas gun shop for fast, insured shipping.