.300 Remington SA Ultra Mag
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.300 Remington Short Ultra Magnum (also known as 300 RSAUM, 300 RSUM or 300 Rem SAUM) is a .30 caliber short magnum cartridge that was put on the market shortly after Winchester released its 300 WSM round.
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[edit] 300 RSAUM vs. 300 WSM
- The WSM has slightly more case capacity and thus, slightly more velocity
- The WSM is far more popular and more ammo and handloading data are available
On the other hand, the RSAUM would appear to be a more volume efficient cartridge. It has 7.5% less case volume, yet it looks to have nearly the same ballistics. However, this may simply be due to the core-lokt projectile in Remington's factory loads.test
[edit] Performance
The 300 RSAUM's ballistics are relatively similar to 300 Win Mag and 300 WSM. The difference in ballistics between the WSM and RSAUM are fairly minuscule.
[edit] 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
[edit] See also
- List of firearms
- List of handgun cartridges
- List of rifle cartridges
- List of individual weapons of the U.S. Armed Forces
