Nosler Trophy Grade 300 RSAUM 180 Grain Partition Spitzer Ammo - 20 Rounds

The Nosler Trophy Grade 300 RSAUM 180 grain Partition Spitzer ammunition pairs a legendary bullet design with premium brass for hunters who demand reliability in the field. Built on the foundation of Nosler's iconic Partition bullet—a benchmark since 1948—this cartridge delivers the terminal performance that has made Nosler a trusted name across generations of serious hunters. The 180 grain load is sized for the 300 RSAUM, a compact magnum that packs serious punch into a shorter action platform, making it a natural choice for mountain hunters and anyone running a short-action rifle without compromise.

The Partition bullet's dual-core design is the real story here. The front core initiates rapid expansion on impact to create a devastating wound channel, while the integral partition wall separates the rear core and keeps it intact. This design philosophy means you retain over two-thirds of the original bullet weight for deep, reliable penetration—critical for larger game and shots that demand structural integrity downrange. Nosler Premium Brass ensures consistent chamber fit, reliable feeding, and the durability to reload if you're handloading for your RSAUM.

Whether you're hunting elk, mule deer, or anything in between, Trophy Grade ammunition removes variables from the equation. Twenty rounds per box gives you enough for practice and confidence before the season, plus a reliable go-to load if you're already settled on your rifle's performance with Partition bullets. This is ammunition built by hunters, for hunters—no marketing hype, just proven terminal design and manufacturing standards.

Key Features

• 180 grain Partition Spitzer bullet—rapid controlled expansion with deep penetration
• Dual-core design retains over two-thirds bullet weight for structural integrity
• Nosler Premium Brass for consistent performance and reloadability
• Optimized for 300 RSAUM short-action platforms
• 20 rounds per box

Specifications

Frequently Asked Questions

What is the Partition bullet design and why does it matter for hunting?

The Partition bullet features a dual-core construction with an integral partition wall separating the front and rear cores. The front core expands rapidly on impact to create a large wound channel, while the rear core remains intact behind the partition for deep penetration. This design retains over two-thirds of the original bullet weight, ensuring the bullet maintains structural integrity and penetrates deeply through larger game.

Is 300 RSAUM ammunition suitable for elk and larger game?

The 300 RSAUM is a short-action magnum cartridge capable of handling medium to large game. The 180 grain Partition load provides the velocity and bullet construction needed for reliable performance on elk-sized game. However, specific suitability depends on your individual rifle, shot placement, and hunting conditions—consult your rifle manufacturer and load data if you're new to the cartridge.

Can I reload Nosler Trophy Grade brass?

Yes. Nosler Premium Brass used in Trophy Grade ammunition is designed for reloadability, making it a good choice if you handload ammunition for your 300 RSAUM.

How many rounds are in a box?

Each box contains 20 rounds of loaded ammunition.