Job Description:

• 1) Measures velocity of projectiles fired from various types and sizes of weapons to determine performance of weapon or ammunition, using chronograph: Loads and aims weapon and fires projectile through electron-beam screens that activate chronograph.

• 2) Converts chronograph reading of elapsed time to velocity in feet-per-second, using reference charts.

• 3) Records data on inspection forms and calculates average velocity of projectiles tested.