One Cartridge, not a box: .300 Remington Short Action Ultra Magnum (a.k.a. .300 Remington SAUM) produced by Nosler Inc. Bend, Oregon, under the Nosler Trophy Grade cartridges brand, using new Nosler brass cases with “NOSLER 300 SAUM ” Head-Stamps and loaded with a 165 Grain Nosler Partition or JSP (Jacketed Soft Point) projectiles.
History of the .300 Remington Short Action Ultra Magnum Cartridge:
Introduced in 2001 by Remington to compete against the Winchester 300 Short Action Magnum (aka 300 WSM) both have about the same ballistics.
Based of a shortened and necked down 404 Jeffery, like many other calibers.
Up to 3,250 feet per Second and 3,500 foot pound per square inch of energy
