The story of SSK Industries begins with J.D. Jones, whose fascination with the Contender® platform and passion for ballistic performance led him to found the company in 1977. SSK quickly gained acclaim for its custom barrels and proprietary JDJ calibers, enabling hunters to pursue big game with unprecedented accuracy and power. Throughout the 1980s and 1990s, SSK’s development of the Whisper® family of cartridges revolutionized subsonic shooting and suppressed firearms, while the introduction of wildcat calibers like the .950 JDJ set new records in sporting rifle power. The company’s commitment to innovation attracted collaborations with ammunition manufacturers and set industry standards for revolver and auto-pistol performance. In 2019, Lehigh Defense acquired SSK, merging its expertise in projectile technology with SSK’s tradition of custom craftsmanship. The partnership was further strengthened in 2024 when Geissele Automatics brought SSK Firearms into its family, expanding production capabilities and engineering resources. Despite changes in ownership, SSK Industries-Lehigh Defense has remained true to its roots: pioneering new cartridges, delivering precision firearms, and serving a dedicated community of hunters and shooters. The brand’s journey is marked by overcoming technical challenges, setting industry benchmarks, and maintaining a vision of relentless innovation in ballistic science.