Speer Load Data in Caliber .300 Win. Mag.
Speer
Speer Bullets is a distinguished name in the ammunition industry, known for producing high-performance bullets tailored to the needs of hunters, law enforcement, and shooting enthusiasts. Founded in 1943 by Vernon Speer, the company began during World War II by manufacturing components for ammunition, laying the foundation for its future as a trusted leader in bullet design and innovation.
Over the decades, Speer has developed a diverse portfolio of bullet lines to meet a wide range of shooting applications. Among its most acclaimed offerings is the Gold Dot series, designed specifically for ...
.300 Win. Mag.
The .300 Winchester Magnum (commonly .300 Win. Mag. or 300 Win Mag) has a storied history that began in the early 1960s when Winchester scaled a belted magnum case to accept the .30-caliber bullet family. Designed to deliver magnum-level velocities from a standard-length rifle action, it built on earlier belted magnum designs and quickly found favor with big-game hunters and long-range shooters. For reloaders, its brass heritage means a robust case with generous capacity, and its long service life in the field has produced abundant factory brass and dies. Over decades the cartridge evolved int ...
