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.300 Remington Ultra Magnum by Remington, JSP, One Cartridge not a Box.


One Cartridge not a box, picture of the box is for reference only!
For more information please see below

Please click on the picture for more detail.


Please Note; above Picture on the right for size comparison: Left to Right:  7mm, .300, .338 and .375 Remington Ultra Magnums, Far Right:.404 Jeffery, parent cartridge of the other 4 cartridges.

One Cartridge not a box, picture of the box is for reference only!

One Cartridge, not a box: .300 Remington Ultra Magnum by Remington Arms Company, factory loaded by Remington using new Remington brass cases with “R-P 300 REM ULTRA MAG”  Head-Stamp and loaded with a 150 grain Remington “CORE LOKT” JSP (Jacketed Hollow Point Boat-Tail) projectile. Due to the loading process, may have very minor nicks on the shoulder, in any.

For more versions of this caliber please see below in related items.

History of the 300 Remington Ultra Magnum cartridge:

The .300 Remington Ultra Magnum (30 Caliber) was introduced in 1999 as one of the (now) 4 Remington Ultra Magnum, joining the .338″ and .375″ and  later the 7mm Remington Ultra Magnums in 2001.

All the Ultra Magnums are based on the .404″ Jeffery case blown out and necked  down to except their different projectile diameters.

The .300 Remington Ultra Magnum delivers 18 % more energy then the .300 Weatherby Magnum and 27% more the .300 Winchester Magnum.

With velocities  up to over 3,500 Feet per  Second and energy over 4,300 Foot  pounds per square inch and projectiles from 150 to 220 grains in weight, this is an excellent long range hunting cartridge.

Additional information

Weight 0.10 lbs

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