Nosler Load Data in Caliber .300 Win. Mag.
Nosler
Nosler, Inc., founded in 1948 by John Nosler, is a renowned American manufacturer specializing in high-performance bullets, brass, ammunition, and precision rifles. The company's origin stems from a personal hunting experience in British Columbia, where John Nosler encountered bullet failure while pursuing moose. This inspired the development of the revolutionary Partition® bullet, designed with a dual-core, partitioned jacket to ensure both rapid expansion and deep penetration—qualities that have since become hallmarks of premium hunting bullet performance.
Over the decades, Nosler has consi ...
.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 ...
