In May 2001, a PzH2000 fired twenty Naschem/Denel M2000 BB Assegai shells over 40 km, one of which was even fired at 41.8 km. The Assegai uses a base-bleed motor which generates hot gas at the base of the shell when it is fired, eliminating the base drag and it can be fitted to any 155mm round. It is not, however, a rocket-assisted round. The ammunition is stored in a carousel magazine mounted in the hull, behind the engine compartment. The ammunition storage and handling is fully automated and directed by the onboard computer. When the rounds are loaded through the tray at the back, the computer stores the type and position of the magazine in its database. A full load of 60 rounds can be loaded within 12 minutes by two crewmen using the onboard loading system. KMW has designed a specialised ammunition re-supply vehicle based on the system but it has not been built.
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