What is 300saum?

The .300 SAUM (Short Action Ultra Magnum) is a rifle cartridge that was introduced by Remington Arms in 2001. It was designed to offer the performance of the .300 Winchester Magnum in a lighter-weight, shorter action rifle.

The cartridge uses a short, fat case with a rebated rim that allows it to fit in short action rifles while still providing ample powder capacity. It has a maximum overall length of 2.825 inches and a maximum case length of 2.015 inches.

The .300 SAUM typically produces velocities that are slightly lower than the .300 Winchester Magnum, but it still packs a punch with its heavy bullet weights and high energy levels. It is popular among hunters and long-range shooters for its flat trajectory and hard-hitting performance.

A variety of bullet weights and styles are available for the .300 SAUM, ranging from 130 grains to 200 grains. It is also a popular choice for handloading, as its short, fat case provides consistent and predictable performance.