Munition having a reusable housing assembly and a removable powder chamber

A method of assembling a munition having a removable powder chamber, comprising the steps of:

• providing a housing having a first end located opposite a second end, said first end of said housing having a first opening, said second end of said housing having a second opening;
• providing said powder chamber, said powder chamber having a powder chamber first end located opposite a powder chamber second end, said powder chamber first end having a powder chamber first opening, said powder chamber second end having a powder chamber second opening;
• said powder chamber second end having a protrusion;
• inserting said powder chamber into said first opening of said housing, whereby, said protrusion is received by said second opening of said housing, whereby, said powder chamber having a seat, whereby, said seat is configured to mate with a seating surface of said housing;
• installing a primer into said powder chamber second opening;
• loading said powder chamber first opening with a propellant;
• inserting a plate into said first opening of said housing, whereby, said plate substantially covers said powder chamber first opening;
• providing a retaining member having a retaining member first end located opposite a retaining member second end, said retaining member first end having at least one retaining member opening, said retaining member second end having at least one retaining member opening;
• and,
• threading said retaining member into said first opening of said housing, whereby, said retaining member is adapted to retain said plate against said powder chamber first opening, whereby, said retaining member retains said plate and said powder chamber within said housing.