.300 Weatherby Magnum

Rifle cartridge January 2013 Product June 2022 .300 Weatherby Magnum 300 Weatherby.jpg 200px .300 Weatherby cartridge USA Rifle Roy Weatherby 1944 Weatherby 1944–present .300 H&H Magnum Belted, bottleneck .308 .336 .492 .512 .531 2.825 3.562 1-10 Large rifle magnum 65000 150 SP 3540 4173 165 SP 3390 4210 180 BST 3250 4223 200 Partition 3060 4158 220 Rn-Ex 2845 3954 26 Weatherby .300 Weatherby Magnum page at Weatherby The .300 Weatherby Magnum is a .30 caliber rifle cartridge created by Roy Weatherby in 1944 and produced by Weatherby. It has become the most popular of all the Weatherby cartridges. Background Roy Weatherby already had experience with other custom cartridges such as his own .270 Weatherby Magnum when he created the .300 Weatherby. 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 Weatherby was first introduced in 1944, and the .300 Winchester Magnum was introduced in 1963. Speer Bullets Reloading Manual #14 525 Speer Bullets Speer 2009 978-0-9791860-0-4 In recent years, Remington, Winchester and Ruger have produced rifles in this caliber, and most major ammunition manufacturers now supply factory loads. Speer Bullets Reloading Manual #14 540 Speer Bullets Speer 2009 978-0-9791860-0-4 Performance Historically, Weatherby claimed that this is the most powerful .30 caliber magnum rifle commercially available, but the recently introduced .300 Remington Ultra Magnum, the .300 Norma Magnum and Weatherby's own .30-378 Weatherby Magnum are now more powerful. Of course there are quite a few very large .30 caliber wildcat cartridges. When comparing the .300 RUM and the .300 Weatherby Magnum, however, there is a difference in factory loadings. Performance data is often listed on the side of the ammunition box for those who wish to do an in-store comparison. On average, Weatherby factory ammo is loaded to higher chamber pressures than Remington or Winchester magnum rounds. The Remington round can be handloaded to equal pressures, and as a consequence, surpass the .300 Weatherby in power. The .300 Weatherby is commonly used by big-game hunters all over the world..300 Weatherby by Chuck Hawks (subscription required) Use The SAS captured a rifle chambered in .300 Weatherby Magnum during the Falklands War.Weatherby Mk 5, .300 Magnum https://www.iwm.org.uk/collections/item/object/30032643 iwm.org.uk Imperial War Museums 17 January 2025 See also List of rifle cartridges 7 mm caliber other cartridges in the same caliber range Table of handgun and rifle cartridges References .300 Weatherby Magnum at Accurate Powder Cartridge dimensions. Category:Pistol and rifle cartridges Category:Magnum rifle cartridges Category:Weatherby Magnum rifle cartridges