A professional who sets up automatic machine to fill small arms cartridge cases with powder and insert bullets. Responsibilities include:

• Installs machine parts, such as shell and bullet dials, carriers, punches, crimping die, and powder charge regulator, to accommodate designated size and type of cartridge to be filled, using handtools.
• Turns setscrews or nuts to adjust and synchronize mechanisms.
• Cleans machine and lubricates moving parts.
• Polishes punches and dies to remove scratches or adhering brass, using bench grinder and emery cloth.
• Disassembles machine or parts to remove jammed cartridges and to replace worn or broken parts.
• Tests sample of cartridges for pullout of bullets and weighs powder load, using pull-test machine and gram scale.
• Records test results.
• Gives instructions to new workers in operation of machines and use of gauges.