SSK Firearms
American maker of custom barrels and the .950 JDJ rifle.
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SSK Firearms, based in Wintersville, Ohio, designs and manufactures firearms and accessories. The company was founded in 1977 by hunter and gun enthusiast J. D. Jones, initially focusing on products for hunting handguns and ammunition.
It later expanded to produce hundreds of different cartridge types. SSK is best known for its custom barrels for the Contender and Encore platforms. In 2019, Lehigh Defense acquired the company and rebranded it as SSK Firearms.
Among its notable products is the .950 JDJ, the largest center-fire rifle ever made. This .950 caliber round generates recoil comparable to firing ten .30-06 rifles simultaneously. Only three of these rifles were built, and the ammunition is no longer produced.
SSK also developed the Whisper family of cartridges in the early 1990s. These accurate, multi-purpose rounds use relatively heavy rifle bullets for their caliber in subsonic loads, designed for military, police, competition, and specialized hunting use, with easy sound suppression in mind. Initially wildcat cartridges, many now have SAAMI and C.I.P. specifications.
Lore & Background
SSK Firearms was started by hunter and gun enthusiast J. D. Jones as SSK Industries, initially manufacturing and marketing products related to hunting handguns and ammunition. The company grew to produce hundreds of different types of rounds. In 2019, Lehigh Defense acquired SSK Industries and re-branded it as SSK Firearms.
The company is noted for developing the Whisper family of firearm cartridges in the early 1990s, a line of accurate, multi-purpose cartridges using relatively heavy rifle bullets for a given caliber in subsonic loads. These were intended for military, police, competition, and specialized hunting markets and could be easily sound-suppressed. While initially wildcat cartridges, many now have SAAMI and C.I.P. specifications.
Reader's Guide
SSK Firearms holds a distinctive place in firearms history through its development of the Whisper cartridge family, which pioneered the use of heavy subsonic rifle bullets for suppressed accuracy. The company also produced the .950 JDJ, the largest center-fire rifle ever made, with recoil equivalent to shooting ten .30-06 rifles simultaneously.
Only three of these rifles were manufactured, and the ammunition is no longer produced. The company's custom Contender and Encore barrels remain a hallmark of its work. The acquisition by Lehigh Defense in 2019 marked a transition, but SSK's legacy includes both extreme power and precision subsonic design, influencing modern suppressed shooting and specialized hunting applications.
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Sources
Compiled from Wikipedia and the sources listed below. Text from Wikipedia is available under CC BY-SA 4.0; this entry is adapted from it.
- Wikipedia: SSK Firearms (CC BY-SA 4.0).
- Word definitions: the Codexery glossary, each quoted from its Wikipedia article.
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