Remington Core-Lokt 300 Remington Ultra Magnum 180 Grain PSP Ammunition - 20 Rounds

The Remington Core-Lokt 300 Remington Ultra Magnum 180 Grain PSP Ammunition delivers the controlled-expansion performance that's made Core-Lokt the go-to round for big game hunters across the continent. This 20-round box of 300 RUM loads pairs a tapered copper jacket locked to a solid lead core—the foundation of Core-Lokt's reputation for consistent, predictable expansion on game. At 3175 feet per second, the 180-grain pointed soft point bullet carries enough velocity and energy to handle elk, moose, and long-range hunting applications where the 300 Ultra Magnum excels.

Core-Lokt ammunition has been the standard for controlled-expansion hunting loads since 1939, and the 300 RUM iteration maintains that legacy. The locked-jacket design prevents separation under impact, supporting the 2X expansion and weight retention that matter when your shot needs to count. Whether you're hunting mountainous terrain or open country where the 300 RUM's range becomes an asset, these rounds give you a proven load you can trust.

Remington Core-Lokt is available in both soft point and pointed soft point configurations across virtually every major hunting caliber; this load's pointed profile supports the ballistic efficiency the 300 Ultra Magnum is designed to deliver. Load these into your 300 RUM and head to the field knowing you're running ammunition that's filled tags on multiple continents for over 75 years.

Key Features

• Tapered copper jacket locked to solid lead core for consistent expansion
• Pointed soft point bullet design for aerodynamic performance at magnum velocities
• 3175 fps muzzle velocity optimized for the 300 Remington Ultra Magnum
• Delivers 2X expansion with reliable weight retention on big game
• 20 rounds per box for field or range use

Specifications

Frequently Asked Questions

What rifles does this 300 RUM ammunition work in?

This ammunition is designed for rifles chambered in 300 Remington Ultra Magnum. Always verify your rifle's caliber marking before loading.

Is Core-Lokt ammunition suitable for long-range hunting?

Yes. The 180-grain pointed soft point bullet carries a ballistic coefficient of 0.383 and exits at 3175 fps, making it well-suited to the extended-range capabilities the 300 RUM platform delivers. The aerodynamic profile supports sustained velocity downrange.

How much expansion can I expect from the Core-Lokt bullet?

Core-Lokt's locked-jacket design delivers approximately 2X expansion on impact while retaining bullet weight, providing the consistent, predictable wound channel expected from this ammunition line.

What game is this load appropriate for?

The 300 RUM with a 180-grain bullet is designed for big game hunting, including elk and moose in most hunting scenarios.