Difference between revisions of ".950 JDJ"
(Created page with " File:950-JDJ-SSK-Industries-Compared-22-Long-Rifle-223-30-06-Firearm-Wiki.jpg|frame|right|An image comparing the .950 JDJ to several other cartridges including a .22 Long R...") |
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[[File:950-JDJ-SSK-Industries-Compared-22-Long-Rifle-223-30-06-Firearm-Wiki.jpg|frame|right|An image comparing the .950 JDJ to several other cartridges including a .22 Long Rifle, .223 Remington and .30-06 Springfield.]] | [[File:950-JDJ-SSK-Industries-Compared-22-Long-Rifle-223-30-06-Firearm-Wiki.jpg|frame|right|An image comparing the .950 JDJ to several other cartridges including a .22 Long Rifle, .223 Remington and .30-06 Springfield.]] | ||
| − | The '''950 JDJ''' is one of the most powerful rifle | + | The '''950 JDJ''' is one of the most powerful rifle cartridges ever developed as of 2019. It was designed by J.D. Jones of [[SSK Industries]] but is primarily a custom novelty that was originally intended for a customer who wanted an extremely powerful and large-caliber rifle that could shoot cast bullets. It is ''not'' a production cartridge, and only 3 rifles chambered in .950 JDJ have ever been produced. |
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| + | The case is based on the [[20mm Vulcan]], trimmed down to a 70mm case length and necked up for a .95 caliber projectile. | ||
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| + | == Ballistics == | ||
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| + | There are mixed reports on the exact ballistics of the .950 JDJ cartridge. | ||
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| + | Some cite a 3600 grain projectile at 2200 feet per second which would generate 38,700 ft lbs of energy at the muzzle. Others (such as [[Ian McCollum]] of [[Forgotten Weapons]]) mention a 2600 grain projectile at 2200 feet per second for a more "modest" 27,950 ft lbs of energy at the muzzle. | ||
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| + | It's possible the former figure is simply misquoted. | ||
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| + | == References & Resources == | ||
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| + | An excellent video by [[Ian McCollum]] of [[Forgotten Weapons]] discussing the .950 JDJ, and the "Fat Mac", one of three rifles ever chambered in the cartridge, weighing in at a whopping 60 pounds. | ||
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| + | <youtube>qg0RdhFnTd0</youtube> | ||
Revision as of 10:08, 5 November 2019
The 950 JDJ is one of the most powerful rifle cartridges ever developed as of 2019. It was designed by J.D. Jones of SSK Industries but is primarily a custom novelty that was originally intended for a customer who wanted an extremely powerful and large-caliber rifle that could shoot cast bullets. It is not a production cartridge, and only 3 rifles chambered in .950 JDJ have ever been produced.
The case is based on the 20mm Vulcan, trimmed down to a 70mm case length and necked up for a .95 caliber projectile.
Ballistics
There are mixed reports on the exact ballistics of the .950 JDJ cartridge.
Some cite a 3600 grain projectile at 2200 feet per second which would generate 38,700 ft lbs of energy at the muzzle. Others (such as Ian McCollum of Forgotten Weapons) mention a 2600 grain projectile at 2200 feet per second for a more "modest" 27,950 ft lbs of energy at the muzzle.
It's possible the former figure is simply misquoted.
References & Resources
An excellent video by Ian McCollum of Forgotten Weapons discussing the .950 JDJ, and the "Fat Mac", one of three rifles ever chambered in the cartridge, weighing in at a whopping 60 pounds.
