Question: Major Ned H. Roberts (1866 Goffstown, N.H. -- 1948), was an American hunter, competition target shooter, gun writer & editor, ballistician and firearms experimenter, Roberts was a prolific contributor to sporting publications, including which United States-based monthly shooting and firearms interest publication, owned by the National Rifle Association (NRA)? 
Sentence (from "High power rifle"): The sport is divided into classes by equipment, and popular types of matches include Service Rifle, Open, Axis and Allies and metallic silhouette.
Relevant evidence: No