Tom Roster

Ballistics Consultant


Tom Roster is an independent ballistics consultant and author specializing in the design and testing of shotshells. He is a court-recognized shotshell and shotgun expert witness with patents on shotshell components especially for nontoxic shot. Roster was formerly the Ballistics Research Director at the Oregon Institute of Technology, and then served as a Ballistics Specialist for the Department of the Interior. In these capacities he conducted empirical shotshell and shotgun-performance research and trained thousands of law-enforcement and wildlife personnel worldwide in shotshell exterior and terminal ballistics phenomena. Roster designed, administered and co-authored the peer-reviewed scientific reports of the world’s six most extensive lead-versus-nontoxic-shot duck, goose, pheasant and dove shooting tests ever conducted.