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4.6mm small arms ammunition

  • US 20040244630A1
  • Filed: 04/16/2004
  • Published: 12/09/2004
  • Est. Priority Date: 03/27/2003
  • Status: Active Grant
First Claim
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1. The combination of a gun having a rifled barrel and a round of ammunition;

  • the rifling of the barrel comprising rifling grooves which are separated by lands extending helically along the length of the barrel;

    the round of ammunition comprising a projectile;

    the projectile having a body comprising a substantially cylindrical body, and at least one annular groove formed in and encircling the said substantially cylindrical body;

    the projectile further being provided with a coating of copper or copper alloy;

    wherein the body of the projectile is formed from a metal having a Vickers Hardness of not less than 550, and the coating is of a thickness not less than the depth of the said rifling grooves.

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