The proposed propellant powder exhibits a temperature-independent burning
behavior and high ballistic stability. The production process starts with
a perforated bulk powder grain, which is processed inside a mixing
apparatus with a solid material, a plug-stabilizing moderator or
deterrent (if necessary also a radical initiator) and a low-viscous
liquid. With a minimum amount of solid material, moderator or deterrent
and liquid and because of the continuous mixing, the form function is
influenced in such a way that the gas-formation rate is practically
independent of the propellant powder temperature. As a result, the muzzle
energy at the normal temperature and, above all, at a low deployment
temperature can be increased markedly as compared to that of a standard
propellant powder.With the propellant powder according to the invention,
for which the grain has at least one perforation that discharges with an
opening to the outside surface of the grain, wherein the opening is
closed off with a plug, the plug has a temperature-dependent mobility. As
a result, the plug has a higher mobility for a lower deployment
temperature than for a higher deployment temperature, so that the plug
permits a faster hole burning at a lower deployment temperature than at a
higher deployment temperature.