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What is a 240 Weatherby Magnum? What is a 240 Weatherby Magnum used for?

What is a 240 Weatherby Magnum? What is a 240 Weatherby Magnum used for? Historical Notes: The .240 Weatherby was added to round out the Weatherby proprietary magnum line, in 1968. It differs from other 6mms in having a belted case with somewhat greater powder capacity. It is very similar to the .240 Belted Rimless Nitro-Express introduced by Holland & Holland around 1923. Thus far, it is available only in the Weatherby Mark V bolt-action rifle or through custom gunsmiths. It is an excellent cartridge and will push the 100-grain 6mm bullet with about 200 fps greater muzzle velocity than the 6mm Remington, and around 300 fps faster than the .243 Winchester. However, a considerable portion of this ballistic advantage results from increased barrel length and loading pressure. It is important to allow plenty of barrel cooling time with this and all high-intensity cartridges. The principal detraction regarding the .240 Weatherby Magnum is that ammunition is expensive and difficult to find. The .240 case has about the same capacity as the .30-06, and rim diameter is also the same. What is a 240 Weatherby Magnum? What is a 240 Weatherby Magnum used for? General Comments: The .240 Weatherby is among the most powerful of the 6mm cartridges. It represents the maximum performance that one can squeeze through a 6mm tube with modern powders. The .244 H&H Belted Rimless Magnum, based on necking-down the .375 H&H Magnum case, will hold more powder, but doesn’t produce any improvement in ballistics. The late Roy Weatherby built a successful proprietary gun business on the basis of a good product plus the all-important element of ballistic one-upmanship. The Weatherby magnum cartridges have traditionally offered higher velocity and energy than their standard factory counterparts. The .240 was born of this same tradition. Of course, Remington, Winchester, Norma, etc., have their own magnum lines in various calibers, and Winchester offered the .300 and .375 H&H Magnums before World War II. However, Roy Weatherby was the first to really popularize this British innovation in the United States, convincing the American shooters that it was something they truly needed. What is a 240 Weatherby Magnum? What is a 240 Weatherby Magnum used for? Reference: Retrieved from 14th edition Cartridges of the World (a complete illustrates reference for more than 1500 cartridges by Franks Barnes edited by W. Todd Woodard 12/01/2014, p261