.300 Remington SA Ultra Mag

Infobox Firearm Cartridge
name= .300 Remington Short Action Ultra Magnum


caption=
origin= USA
type= Rifle
service=
used_by=
wars=
designer= Remington
design_date=
manufacturer=Remington
production_date=2001
number=
variants=
is_SI_specs=
parent=.300 Remington Ultra Magnum
case type=rimless bottleneck
bullet=.308
neck=.344
shoulder=.534
base=.550
rim_dia=.534
rim_thick=
case_length=2.015
length=2.825
rifling=1-10"
primer=Large rifle magnum
is_SI_ballistics=
bw1=150
btype1=SP
vel1=3253
en1=3525
bw2=165
btype2=SPBT
vel2=3126
en2=3581
bw3=180
btype3=HPBT
vel3=2954
en3=3489
bw4=200
btype4=SP
vel4=2790
en4=3458
bw5=
btype5=
vel5=
en5=
test_barrel_length=24"
balsrc= [http://www.accuratepowder.com/data/PerCaliber2Guide/Rifle/Standarddata(Rifle)/308Cal(7.82mm)/300%20RSAUM%2016Dec02.pdf Reloading data at Accurate Powder]

.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 was put on the market shortly after Winchester released its 300 WSM round in 2001. [http://www.chuckhawks.com/subscribers/rifle_cartridge_page/300short_mag.htm The .300 Remington Short Action Ultra Mag by Chuck Hawks] ]

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.

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

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.

ee also

* .300 Winchester Short Magnum
* .300 Winchester Magnum
* .300 Remington Ultra Magnum
* 7 mm caliber
* List of firearms
* List of handgun cartridges
* List of rifle cartridges
* List of individual weapons of the U.S. Armed Forces

References

* [http://www.stevespages.com/jpg/cd300remingtonsaum.jpgCartridge Dimensions at Steve's Pages]