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  1. The Dardick tround, or simply tround (triangular round), is a unique firearms cartridge developed by inventor David Dardick for use in his open-chamber firearms. Named for its convex triangular shape, the tround allowed the firearm's chamber to be open on one side, removing the requirement for reciprocating motion when chambering and ejecting a ...

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  3. Sep 26, 2016 · Later that same decade, inventor David Dardick adopted the triangular design and founded the Dardick Corporation in Hamden, Connecticut. His new design featured a combination of a hybrid revolver and a magazine-fed pistol.

  4. David Dardick was a Russian-born American inventor who developed the Dardick tround. Born in Russia to a Jewish family, Dardick emigrated to the United States and developed an interest in arms and ammunition.

  5. Jul 31, 2018 · Who, the term Dardick in the world of oddball firearms refers to inventor David Dardick who in the 1950s had some interesting ideas.

    • Chris Eger
  6. Mar 29, 2017 · In August 1958, David Dardick received a patent for a magazine-fed revolver. His design featured a cylinder with openings on each exterior edge, creating U-shaped chambers instead of traditional O-shaped chambers.

  7. Jul 2, 2023 · An associate of Dardick's was Melvin M. Johnson, Jr., who notably invented the Johnson Automatic Rifle and M1941 Johnson Light Machine Gun used by Marines and various special-forces units...

  8. Mar 18, 2019 · The system was designed by David Dardick, a friend and colleague of Melvin Johnson, inventor of the Model 1941 Johnson semiautomatic rifle. Work on the piece began in the late 1940s and it wasn’t until September 1954 when patent papers for the so-­termed “Open Chamber Gun” were duly filed.

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