.300 Remington SA Ultra Mag

.300 Remington Short Action Ultra Magnum (also known as 300 RSAUM, 300 RSUM or 300 Rem SAUM) is a .30 caliber short magnum cartridge that is a shortened version of the Remington 300 Ultra Mag, both of which derive from the 404 Jefferey case. The Remington Short Ultra Mag was put on the market shortly after Winchester released its 300 WSM round in 2001, resulting in the Winchester product getting the marketing advantage that has eclipsed the Remington offering.^[1]

Performance

The 300 RSAUM's ballistics are similar to 300 Win Mag and 300 WSM. The difference in ballistics between the WSM and RSAUM are insignificant in all practical applications. Differences in muzzle velocity and muzzle energy are related to barrel length rather than case dimension.

Muzzle velocity

• 10.69 g (165 gr) Full Metal Jacket(FMJ): 3,075 ft/s
• 11.66 g (180 gr) Full Metal Jacket(FMJ): 2,960 ft/s

Comparisons

• The WSM has slightly more case capacity and thus, slightly more velocity
• The WSM is more popular and more ammo and handloading data are available

See also

• .300 Remington Ultra Magnum
• 7 mm caliber
• List of firearms
• List of rifle cartridges
• Table of handgun and rifle cartridges
• List of individual weapons of the U.S. Armed Forces

References

• 7mm-300 SAUM Cartridge Guide by AccurateShooter.com

Remington Firearms and Cartridges Rifles Bolt-action JuniorTarget 521TL Remington-Keene rifle M1903 Springfield rifle Model 5 Model 6 Model 7 Model 30 Model 34 M40 Model 241 Model 341 Model 504 Model 511 Model 512 Model 513 Model 521 Model 580 Model 581 Model 582 Model 600 Model 660 Model 673 Model 700 Model 710 Model 720 Model 721 Model 722 Model 725 Model 770 Model 788 Model 798 Model 799 M24 Sniper Weapon System M2010 Enhanced Sniper Rifle Modular Sniper Rifle R5 Remington Gas System Pump-action Model Six Model 14 Model 121 Model 141 Model 572 Model 572 Fieldmaster Model 760 Model 7600 Model 7615 Semi-automatic Nylon 66 Model Four Model 8 Model 24 Model 522 Model 552 Model 597 Model 740 Model 742 Model 7400 Model 750 Model R-15 Model R-25 RSASS Automatic Adaptive Combat Rifle Single shot Rolling Block Shotguns Pump-action Model 10 Model 17 Model 29 Model 31 Model 870 Model 887 Semi-automatic Model 11 Model 11-48 Model 58 Model 878 Model 1100 Model 11-87 Model SP-10 SPR 453 Break-action SPR 100 SPR 310 Handguns Semi-automatic 1911 R1 Model 51 R51 Revolver Model 1858 Model 1875 Model 1890 Derringer Model 95 Rider Single Shot Pistol Zig-Zag Derringer Other XP-100 Cartridges .17 Remington Fireball .17 Remington 5mm Remington Magnum Rimfire .22 BR .22 Remington Jet .221 Remington Fireball .222 Remington .222 Remington Magnum .223 Remington .22-250 Remington 6mm BR 6mm Remington .25 Remington .25-06 Remington .260 Remington 6.5mm Remington Magnum 7mm BR Remington 7mm-08 Remington .280 Remington 7mm Remington Magnum 7mm Remington Short Action Ultra Magnum .30 Remington .30 Remington AR .300 Remington Short Action Ultra Magnum .300 Remington Ultra Magnum .32 Remington 8mm Remington Magnum .338 Remington Ultra Magnum 7 mm Remington Ultra Magnum .35 Remington .350 Remington Magnum .375 Remington Ultra Magnum .416 Remington Magnum .44 Remington Magnum