 A "balle T" (tracer ammunition) and "balle P" armor-piercing rounds were also produced, along with blank and reduced charge cartridges.In order to safely accommodate pointed (spitzer) bullets inside the Lebel rifle magazine, a circular groove was machined around each primer cup at the case base on both "balle D am" and "balle N" ammunitions.The role of that circular groove is to receive the pointed bullet tip of the following round loaded inside the tube magazine, and keep it "at the side" of the case base of the previous cartridge, so the tip does not easily slide to the base center where the primer is located.