The .300 Remington Ultra Magnum … The .300 Remington Ultra Magnum was designed in 1999 by Remington Arms Company. Released in 1999, the .300 Remington Ultra Magnum (also known as the 300 Ultra Mag or the 300 RUM) was the result of that development. Select your cartridge type from the drop-down list. Manufacturer Powder Bullet Diam. 284 Winchester and 6.5 Remington Mag-num were all fine ideas, but terribly limited by the rifles for which they were introduced. Occasionally, we will temporarily publish load data on this page when a bullet becomes available and is not yet listed in the latest edition of the handbook. Find what you need in four easy steps. Slipped bullet in Remington built the .300 Ultra Mag using a modified .404 Jeffery case necked down to use .308″ bullets, slightly shortened to 2.85″, and blown out to maximize case capacity. In 2001 Remington introduced their .375 Ultra Mag, which is apparently intended to compete with the .378 Weatherby Magnum as the most outsized commercial .375 cartridge. With the optimized material geometry, our brass will generally have a different case volume than most other […] To maximize performance, the ballistics experts at Hodgdon Powder Co., Inc. have developed a comprehensive Reloading Guide to provide handloaders with current data for Accurate Powders. Vel. C.O.L Grs. We can help you out! 7mm Remington SA Ultra Mag 27874 150 Core-Lokt Pointed Soft Point 9½ M 0.346 200 ADD TO COMPARE Velocity (FPS) 3110 2831 2568 2321 2087 1867 Energy (FT-LB) 3221 2669 2197 1793 1450 1161 DROP CHART -1.5 338 Remington Ultra Mag We developed the following data in a Remington 700 BDL rifle. Say hello to the 300 Remington Ultra Magnum. One of the ways we accomplished this is by optimizing the material in specific areas to strengthen it. For decades Remington was satisfied with its 6.5mm Rem. JMac Thanks for the data confirmation. This huge cartridge requires a long magnum action as well as an extra long barrel (28" is recommended and 223 Remington 60-62 gr. Here's what I fired today. Magnum 340 Weatherby Magnum 375 H&H Magnum 378 Weatherby Magnum 416 Rigby 470 Nitro Express 6.5 X 55 Swedish Mauser (commerical action) 6.5 X … Load Data Sheets jmcbrowne@mac.com 2019-05-09T16:48:05-04:00 LOAD DATA SHEETS To support our customers, we’ve created Load Data Sheets for … Pressure Grs. Sierra 250 GameKing Fed 215M Remington Case Neck sized once fired cases Rem 700 action 27.5 inch Pac-Nor barrel Leupold Vari-X III 3.5x10 M1 Long Mag., 350 Rem. Ballistics and Drop for the .375 Remington Ultra Magnum Cartridge Type: Height: 2.85" Width: 0.534" Average FPS: 2862 Average Energy: 5055 Average Gr: 278 Recoil: 3.7 *Casing image above is an artist rendering and not a real photo of .375 Remington Ultra Magnum Ballistics cartridge. I liked it in the 300 ultra with 200 gr accubonds. Remington showed a select group of gun writers their new .300 Remington Ultra Mag in the fall of 1998, and the first thing I thought was that that big case would be awesome with a .358 bullet. The .338 Remington Ultra Magnum has a similar case … The .300 Remington Ultra Magnum, also known as the .300 Ultra Mag, 7.62×72mm or .300 RUM is a 7.62 mm (.308 inch) rifle cartridge introduced by Remington Arms in 1999. Remington launched this beast in 1999, it's first 30-caliber. Mag., 7mm Rem. Vel. Opinion On Remington 375 Ultra Mag 02-02-2012, 14:28 I am wanting to buy a LSS or XCR in 375 RUM and was wondering what your opinions are on the rifle and caliber? To view this Reloading Guide in a PDF Oddly, enough, I was looking for that sort of data just today. It is often debated which came … Here it is right from the Hodgdon web site (reformatted for better plain text appearance): 375 REMINGTON ULTRA MAG CASE: REMINGTON BBL: 24" PR: REMINGTON 9 1 To view this Reloading Guide in a PDF Like most of his other magnum cartridges, this is based on a blown-out .300 H&H Magnum case, using the signature Weatherby double-radius shoulder. The case is based off a .404 Jeffery Nitro Express by narrowing down the neck to fit a … 375 Rem Ultra Mag Brass – ADG manufactured brass is optimized not only for consistency in performance, but also for durability. and Bull quartering away on the run at less than 100 yds. 338 REMINGTON ULTRA MAGNUM 338 NORMA MAGNUM 338-378 WEATHERBY MAGNUM 358 NORMA MAGNUM 9,3X57 9,3X62 9,3X74R 375 H&H Flanged Magnum 375 HOLLAND & HOLLAND MAGNUM 375 … It is based on the .300 Ultra Mag case necked up to We installed a Unfortunately, Remington do not produce a load capable of producing fast, clean killing at long ranges. Call us at 660-460-2802 for the latest load data for newly released bullets. To maximize performance, the ballistics experts at Hodgdon Powder Co., Inc. have developed a comprehensive Reloading Guide to provide handloaders with current data for Ramshot Powders. Pressure Hodgdon H4350 Buy Now 0.26400 2.65500 39.9 2,895 49,200 PSI 44.7 3,133 Ultra Magnum 338 Win. In 2001 Remington introduced their .338 Ultra Mag, based on the .300 Ultra Mag case necked up to accept .338" bullets. .338 Remington Ultra Magnum (RUM) 300 Grain Nosler AccuBond- The .338 Remington Ultra Magnum is a .338 caliber rifle cartridge introduced by Remington Arms in 2002. 338 Rem. I got great penetration considering the velocity on a 5x5 bull elk 2 years ago with that 150 gr partition load. The 140 grain Core-Lokt Ultra has replaced Remington’s initial load for the RUM featuring the 140 grain traditional Core-Lokt which surprisingly, managed to hold together at RUM velocities and produce excellent performance on lighter medium game. Mag. NoslerCustom Ammunition - Ammunition Listing Page 6 of 6 Nosler, The World's Finest Bullets, Ammunition, Rifles, & Brass. .300 Weatherby 180 grain Barnes Tipped Triple Shock (TTSX)~ Roy Weatherby already had experience with other custom cartridges such as his own .270 Weatherby Magnum when he created the .300 Weatherby. The Winchester M70 got 2680 fps with Remington’s .338 Win Mag load using the same bullet. data 5.56 NATO 60-62 gr. After considering a lot of case design possibilities I decided to keep it simple and necked the .300 Remington Ultra Mag case up to .358 with no other changes. On the range we confirmed the average velocity of the new Remington Ultra to be 2850 fps. 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