A professional who tends battery of automatic swaging machines that form lead wire or slugs into bullets or cores for jacketed bullets. Respnsibilities include:

• Threads lead wire from reel over takeup pulleys and through feed mechanism and between forming wheels, or fills machine hopper with cylindrical lead slugs.
• Starts machine and observes feeding, forming, and ejecting mechanisms to detect malfunction.
• Examines finished pieces for malformation and scratches.
• Verifies weight, contour, and dimensions, using balance scale and fixed gauges.
• Mixes oil and kerosene in prescribed proportion and fills machine wells to lubricate lead wire or slugs.
• Notifies swaging-machine adjuster of machine malfunction.
• May make minor adjustments, such as replacing worn dies, using handtools.