- .338 Remington Ultra Magnum
Infobox Firearm Cartridge
name= .338 Remington Ultra Magnum
.300 Remington Ultra Magnum
case_type=Beltless, rebated, bottleneck
rifling=1-10 in (254 mm)
primer=Large rifle magnum
test_barrel_length=26"The .338 Remington Ultra Magnum is a .338 caliber
riflecartridge introduced by Remington Armsin 2002. It is a beltless, rebated rim cartridge based on the .300 Remington Ultra Magnumcase shortened .090" loaded with a .338 caliber bullet. The .338 Remington Ultra Magnum is second only to the .338 Lapua Magnumand .338-378 Weatherby Magnumin cartridge-case capacity.
Handloaders should note that this cartridge already operates at very high pressures (65,000 PSI), significantly higher than standard rifle cartridges and higher even than most "magnums." This cartridge should not be "hot rodded," as many handloaders have done over the years with more conventional, lower pressure rounds.
List of rifle cartridges
* [http://www.accuratepowder.com/data/PerCaliber2Guide/Rifle/Standarddata(Rifle)/338cal(8.59mm)/338%20RUM%20Remington%20Ultra%20Mag%20pages%20297%20298.pdf .338 Remington Ultra Magnum reloading data at accuratepowder.com]
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