Jeff Siewert has worked as a systems engineer with ArrowTech Associates, Inc., for the past 29 years, working on projectiles ranging from 17-cal air rifle pellets to an 8-inch howitzer. He has taught numerous classes on ArrowTech’s PRODAS software at government and industry locations worldwide. He is a hunter and shooter and has been a reloader since 1983. Mr. Siewert holds a B.A. in physics from SUNY Oswego, New York.