The .300 Remington Ultra Magnum (.300 RUM) is a powerful, long-range rifle cartridge developed by Remington Arms in 1999. Designed to provide exceptional ballistics, accuracy, and energy retention at extended ranges, the .300 RUM has become a popular choice among long-range shooters, hunters, and big game enthusiasts who require a potent and versatile cartridge for various hunting scenarios.
The .300 RUM features a beltless, rebated rim bottleneck case with a large powder capacity, enabling it to drive .30 caliber (7.62mm) bullets at exceptionally high velocities. The cartridge typically accommodates bullet weights ranging from 150 to 220 grains, with muzzle velocities between 3,000 and 3,400 feet per second, depending on the bullet weight and powder charge.
One of the key advantages of the .300 RUM is its impressive long-range performance. The cartridge exhibits a flat trajectory, minimal wind drift, and outstanding energy retention, making it ideal for hunting medium to large-sized game, including deer, elk, moose, and bear, at extended distances. The .300 RUM is also known for its accuracy, with many shooters reporting sub-MOA groupings at distances beyond 500 yards.
The .300 Remington Ultra Magnum is best suited for experienced shooters and hunters who require a powerful, long-range cartridge for various hunting applications. While the cartridge delivers exceptional performance, it also comes with increased recoil and ammunition costs compared to some other .30 caliber options. Nevertheless, for those seeking a highly effective and versatile choice in the realm of long-range hunting and shooting, the .300 RUM remains a compelling option.