A professional who sets up and operates battery of hopper-fed machines to automatically groove or knurl, die-size, and lubricate bullets for small arms ammunition. Respnsibilities include:

• Installs and adjusts grooving segments, lubricating and sizing die, feedpipes, and feeding mechanism, using handtools.
• Turns crank to withdraw plunger from cylinder and inserts wax stick lubricant which is force fed to lubricating die.
• Adjusts rheostat to heat and soften wax electrically in die box.
• Fills hopper with bullets and starts machine.
• Measures work samples to verify location and depth of grooves, and length and diameter of bullets, according to specifications, using fixed gauges.
• Inspects bullets to ensure that grooves are filled with lubricant.
• Turns stop nuts and setscrews to adjust machine by trial and error to produce acceptable bullets.
• Observes grooving and feeding mechanisms for jams.
• Removes jammed bullets, using fingers or wire pick.