Nosler Trophy Grade ammunition in .300 Remington Ultra Magnum (brand part no. 60064) loads a 165-grain Partition bullet, the design that put Nosler on the map, built for hunters who want proven, controlled-expansion performance and a flatter trajectory. Manufactured to Nosler’s strict quality standards, Trophy Grade uses Nosler Custom brass and hand-selected bullets to attain optimum performance no matter where the hunt takes you. The Partition’s fully tapered jacket ruptures instantly at the thin jacket mouth, while the gradual thickening along the bullet’s axis controls expansion and curls the jacket uniformly outward at both high and low velocities. For .300 RUM hunters who want that classic controlled-expansion performance at high velocity, this rifle ammunition is built for the hunt.

Key Specifications

• The chambering is .300 Remington Ultra Magnum, a flat-shooting magnum built for long-range big game.
• The bullet weighs 165 grains, a lighter weight chosen for extra velocity and a flatter trajectory.
• The bullet is a Nosler Partition, a dual-core design with an integral jacket wall between front and rear cores.
• The thin jacket mouth ruptures instantly on impact, curling uniformly outward into a wide mushroom at both high and low velocities.
• The integral partition wall retains the rear core intact, driving continued penetration after the front half expands.
• The case material is brass, giving reliable extraction and standard reloading compatibility.
• Cost runs about $4.61 per round, in line with premium bonded-tier hunting ammunition.
• Each box holds 20 rounds, enough to confirm zero and still hunt the season.
• Shipping weight per box runs 1.85 pounds, useful for shooters planning a case-quantity order.

Frequently Asked Questions

How does the Partition’s integral wall work? A jacket wall splits the bullet into front and rear cores; the front expands into a mushroom while the wall holds the rear core intact for continued penetration.

Why choose the lighter 165gr loading? The lighter weight trades a little mass for extra velocity and a flatter trajectory, while keeping the same proven Partition construction.

Buy Nosler Trophy Grade .300 RUM 165gr Partition

Since 1948 the Partition has been the bullet hunters trust when a marginal hit still has to finish the job. Order from our Lubbock, Texas gun shop and it ships fast to your door.