The 14.5mm JDJ is a rifle cartridge originally created by SSK Industries of Wintersville, Ohio.Luke Nichols, "What is the World's Biggest Rifle?" Beatrice Daily Sun. 9 August 2013. SSK Industries is now SSK Firearms and no longer appears to sell the cartridge.
Overview It uses the .50 BMG case with the neck opened up to accept a bullet. It fires the bullet at with the fire-formed load. The Barnes bullet can also be loaded to . It has a destructive device exemption. Only rifles chambered for the .50 BMG can be converted to this caliber.
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