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.375 Remington Ultra Magnum

Rifle cartridge

Field	Value
name	.375 Remington Ultra Magnum
origin	United States
type	Rifle
designer	Remington
design_date	2000
parent	[.300 Remington Ultra Magnum](300-remington-ultra-magnum)
case_type	Beltless, rebated-rim, bottleneck
bullet	.375
neck	.4050
shoulder	.5250
base	.5500
rim_dia	.534
case_length	2.850
length	3.600
rifling	1-12"
primer	Large rifle magnum
max_pressure	65000
bw1	235
btype1	SP
vel1	3148
en1	5172
bw2	250
btype2	SBT
vel2	3036
en2	5118
bw3	260
btype3	Partition
vel3	2970
en3	5094
bw4	270
btype4	SP
vel4	2941
en4	5187
bw5	300
btype5	RN
vel5	2945
en5	5760
test_barrel_length	26
balsrc	Alliant Powder

The .375 Remington Ultra Magnum, also known as the .375 RUM is a .375 rifle cartridge introduced by Remington Arms in 2000. The cartridge is intended for large and dangerous game.

It is a beltless, rebated rim cartridge created by necking up the .300 Remington Ultra Magnum case to .375 caliber with no other changes. with a 300 grain (19 g) bullet for 5,070 ft·lbf (6.88 kJ) of muzzle energy.

General information

The intended use of this cartridge includes hunting large, thick-skinned game. It is powerful enough to kill any land animal and, with its high velocity, can do so at fairly long ranges. Such performance comes at the price of a heavy recoil: in a sporting-weight rifle of ~8 lb (3.6 kg), this cartridge can produce a fierce 80 ft·lbf (108 J) of recoil (approximately 3.5 times that of a .30-06.)

There is a wide selection of .375 in (9.53 mm) bullets available that are suited to the high velocities of the .375 RUM, and boat tail bullets help to further extend the useful range.

Currently, there are no production rifles in this chambering (Savage & Remington previously did so.) Remington, and Nosler are the only sources of factory ammunition. Loading dies and reloading data are readily available to the handloader. Double Tap loads to the specifications attributed to handloader limits.

References

. ["375 Remington Ultra Mag"](http://www.barnesbullets.com/copper_manual/375_Remington_Ultra_Mag.pdf). *Barnes Bullets, LLC. 38 N Frontage Rd Mona, UT 84645*.
. (2014). ["Alliant Powder - Reloaders' Guide"](http://www.alliantpowder.com/reloaders/RecipeList.aspx?gtypeid=2). *Alliant Powder 2299 Snake River Avenue Lewiston, ID 83501*.
(2014). "PREMIER A-FRAME". Remington Arms Company, LLC 870 Remington Drive P.O. Box 700 Madison, NC 27025-0700.
. (2014). ["375 Remington Ultra Mag"](http://www.doubletapammo.net/index.php?route=product/category&path=303_336). *DoubleTap Ammunition 646 S. Main St. #333 Cedar City, UT 84720*.
. (2014). ["Ammunition-Nosler"](http://www.nosler.com/ammunitionpage). *Nosler Inc. 107 SW Columbia St. Bend, OR 97702*.

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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