.338 RUM Ammo

The .338 Remington Ultra Magnum (RUM) ammunition category is engineered for hunters and long-range shooters who seek extraordinary power and ballistic capabilities. Introduced by Remington in 2002, the .338 RUM is designed to push the limits of conventional hunting cartridges, offering one of the highest levels of performance available in a .338 caliber. This selection features premium ammunition from leading manufacturers, ideal for those targeting large and dangerous game or engaging in extreme long-range shooting competitions.

Intended Use: The .338 Remington Ultra Magnum is exceptionally well-suited for hunting large game such as elk, moose, and bear, providing devastating stopping power at extended ranges. Its high ballistic efficiency also makes it a favorite among shooters participating in ultra-long-range competitions, where precision and energy retention are critical.

Caliber/Size: Firing a .338 inch diameter bullet, the .338 RUM is part of Remington’s Ultra Magnum series, known for its ability to achieve ultra-high velocities and impressive terminal ballistics. This cartridge supports a range of heavy, high-ballistic-coefficient bullets that maximize downrange performance and penetration.

Performance Characteristics: Renowned for its flat trajectory and exceptional kinetic energy, the .338 RUM delivers superior penetration and knockdown power. Its performance at long distances is marked by minimal bullet drop and wind drift, enabling shooters to achieve precise, ethical shots on game even under challenging conditions.

Material and Construction: .338 Remington Ultra Magnum rounds are manufactured with high-quality materials, featuring robust brass casings and precision-engineered bullets. Ammunition types available include bonded core and controlled-expansion bullets for maximum effectiveness against tough-skinned game, as well as boat-tail designs for enhanced aerodynamic efficiency in competitive shooting scenarios.

Brands and Manufacturers: This category includes ammunition from top-tier brands such as Norma and Nosler. These manufacturers are committed to delivering high-performance .338 RUM options that meet the rigorous demands of the most serious hunters and competitive shooters.

A Brief History: The .338 Remington Ultra Magnum was developed as part of Remington’s Ultra Magnum line, aiming to provide shooters with the highest level of performance in commercially available ammunition. Its introduction expanded the options for hunters and long-range shooters, offering a cartridge capable of extreme performance without the need for specialized military calibers.


  1. What is the effective range of a .338 Remington Ultra Magnum? The .338 RUM is effective at ranges of up to 1,200 yards for hunting, with precision and power that make it capable of cleanly taking large game at these distances. In long-range shooting sports, it can perform even beyond this range under optimal conditions.
  2. Can the .338 Remington Ultra Magnum be used for smaller game? While technically possible, the .338 RUM’s high power and potential for significant meat damage make it overkill for smaller game. It is best reserved for larger species where its capabilities can be fully utilized.
  3. How does the .338 RUM compare to other long-range hunting cartridges? The .338 RUM stands out for its exceptional velocity and energy, surpassing many other long-range hunting cartridges like the .300 Win Mag and even rivaling more specialized calibers such as the .338 Lapua Magnum in certain aspects of performance.

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