A professional who sets up series of machines to load platefuls of small arms cartridges with powder and bullets. Responsibilities include:

• Changes setting screws on eccentric arm of shakers to adjust length of stroke of shaker table according to caliber and style of cartridge and bullet processed.
• Installs powder volume plate in loading unit and inserts blocks of punches and collets in presses to seat and crimp bullets, using handtools.
• Turns setscrews, stop nuts, and turnbuckles to adjust, by trial and error, side guides, backstops, conveyor fingers, and stroke of press gates, using height gauges.
• Distributes plates to each work station according to work requirements.
• Empties powder from volume plate into tray and weighs it, dividing by number of cartridges in plate to determine if total load and average per cartridge are within weights specified.
• Changes volume plate for one with larger or smaller cavities until total and average loads meet specifications.
• Observes unit in operation to detect malfunctioning.
• Starts machine to load plate of cartridges and sends samples to ballistics laboratory for approval before releasing unit to operating crew.