educational, instructional and informational services rendered to the public, by producing and distributing printed materials pertaining to the latest improvements, designs and materials developed in small arm ammunition, relative to identification of new materials, their characteristcs, their availability geographical sources of materials, composition, methods of formation, advances in constructional design, comparisons between materials available and their identification, choke recommendations, comparative costs and prices, comparative performances, technical study results, domestic and foreign government approval status, legality, and hand loading availability