Cannelure

[kan-l-oo r]

  • A crimped or knurled groove, rolled onto a bullet or the neck of a cartridge case, to help retain a bullet in its case, and/or to provide a space for bullet lubricant.
  • A groove or indention around the circumference of a bullet. Its purpose is to permit the cartridge casing to be crimped tightly against the bullet shank to hold it firmly to the casing. A groove or indention around the circumference of a bullet. Its purpose is to permit the cartridge casing to be crimped tightly against the bullet shank to hold it firmly to the casing.