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.300 Remington Short Action Ultra Magnum

Rifle cartridge

Field	Value
name	.300 Remington Short Action Ultra Magnum
image	[[File:300-Remington-SA-Ultra-Magnum.png	270px]]
origin	USA
type	Rifle
designer	Remington
manufacturer	Remington
production_date	2001
parent	[.300 Remington Ultra Magnum](300-remington-ultra-magnum)
case_type	rimless bottleneck
bullet	.308
neck	.344
shoulder	.534
base	.550
rim_dia	.534
case_length	2.015
length	2.825
rifling	1-10 in
max_pressure	65000
pressure_method	SAAMI
primer	Large rifle magnum
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
test_barrel_length	24 in
balsrc	[Reloading data at Accurate Powder](http://www.accuratepowder.com/data/PerCaliber2Guide/Rifle/Standarddata(Rifle)/308Cal(7.82mm)/300%20RSAUM%2016Dec02.pdf)

.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 Jeffery 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.

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) 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

Cartridge	Bullet weight	Muzzle velocity	Muzzle energy
[.30-06 Springfield](30-06-springfield)	200	2,569	2,932
.300 RSAUM	200	2,790	3,458
[.300 WSM](300-winchester-short-magnum)	200	2,822	3,538
[.300 Win Mag](300-winchester-magnum)	200	2,877	3,677
[.300 H&H Magnum](300-h-h-magnum)	200	2,913	3,769
[.300 Wby Mag](300-weatherby-magnum)	200	2,987	3,963
[.300 RUM](300-remington-ultra-magnum)	200	3,154	4,419

References

7mm-300 SAUM Cartridge Guide by AccurateShooter.com

References

[http://www.chuckhawks.com/subscribers/rifle_cartridge_page/300short_mag.htm The .300 Remington Short Action Ultra Mag by Chuck Hawks]
".308 Caliber reloading data at Accurate Powder".
"Accurate Powder reload data table".

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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