.375 Remington Ultra Magnum
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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.[1]
It is a beltless, rebated rim cartridge created by necking up the .300 Remington Ultra Magnum case to .375 caliber with no other changes.[1] Factory loadings are less powerful than handloads for the cartridge. Remington factory loads push a 300 grain (19 g) bullet at 2760 ft/s (840 m/s),[3] producing 5070 ft·lbf (6.88 kJ) of energy. A handloader can increase the muzzle velocity of a 220gr bullet to 3321 ft/s (900 m/s),[4] and develop 5800 ft·lbf (7.9 kJ).[5]
General information
The intended use of this cartridge includes hunting large, thick-skinned game.[1] It is powerful enough to kill any land animal[1] and, with its high velocity, can do so at fairly long ranges. One should note that 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.) This is well beyond the limits of most shooters.
There is a good selection of .375 in (9.53 mm) bullets available[1][3][6] that are suited to the high velocities of the .375 RUM, and boat tail bullets help to further extend the useful range.
Currently, only Remington makes production rifles in this chambering (Savage previously did so.) Remington,[3] DoubleTap[7] and Nosler[6] 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.
See also
- List of rifle cartridges
- 9 mm caliber other cartridges of similar size.
- Table of handgun and rifle cartridges
References
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- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Lua error in package.lua at line 80: module 'strict' not found.
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- ↑ 3.0 3.1 3.2 Lua error in package.lua at line 80: module 'strict' not found.
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- ↑ "The .375 Remington Ultra Mag" by Chuck Hawks
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
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