Patent ID: 8156869
Filing Date: 2012-04-17
Classification: F42B

Abstract:
1. Method, in cartridged, sub-calibre, flechette projectile ammunition, of the type in which the constituent flechette projectiles, in their rear part, have multiple fixed stabilizing fins protruding into a cartridge case forming part of a complete round, of enabling said cartridge case to be charged with the largest possible quantity of sticks of multi-perforated propellant arranged in the longitudinal direction of the cartridge case, characterized in that for at least the part of a propellant charge intended for inclusion in that part of the cartridge case of the round in which the stabilizing fins of the flechette projectile will be situated, a multi-perforated stick propellant is chosen, which is perforated transversely to its longitudinal direction and has an equilateral trapezoidal cross-section, which is adapted to the space between the stabilizing fins and the cross-sectional dimensions and angles of which are matched to one another so that two such propellant sticks with their broad parallel sides resting against one another form a composite double propellant stick having an equilateral hexagonal cross section.