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Spinning projectile for smooth bore guns

  • US 3,247,795 A
  • Filed: 04/01/1964
  • Issued: 04/26/1966
  • Est. Priority Date: 04/01/1964
  • Status: Expired due to Term
First Claim
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1. IN A SHOTGUN SHELL, THE COMBINATION COMPRISING A PROPELLANT;

  • A WAD FORWARDLY OF THE PROPELLANT CHARACTERIZED BY A FRANGIBLE CENTRAL PORTION;

    AND A PROJECTILE FORWARDLY OF THE WAD WITH ITS TRAILING END IN ENGAGEMENT THEREWITH BUT OUT OF CONTACT WITH THE FRANGIBLE PORTION THEREOF, SAID PROJECTILE HAVING BETWEEN ITS TRAILING END AND ITS LEADING END A MULTIPLICITY OF GENERALLY ANNULAR SERRATIONS THE OUTERMOST PORTIONS OF WHICH ARE OF A DIAMETER SUFFICIENT TO PERMIT THEM TO ENGAGE THE INTERIOR SURFACE OF A SHOTGUN BARREL.

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