.300 Remington S.A.U.M. by Remington, JSP, One Cartridge not a Box.
For more information, please see below.
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One Cartridge, not a box: .300 Remington Short Action Ultra Magnum (a.k.a. .300 Remington S.A.U.M.) produced by Remington Arms company with new Remington brass cases with “R-P 300 REM SA ULTRA MAG ” Head-Stamp and loaded with a 165 Grain 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
More Remington S.A,U,M cartridges below