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 "American Rifleman"): It is the 33rd most-widely distributed consumer magazine and the NRA's primary magazine.
Relevant evidence: No