In this report, researchers examined whether individualized multimedia-based instruction would influence the development of rifle marksmanship skills in novice shooters with little or no prior rifle marksmanship experience. Forty-eight novice shooters used an M4 rifle training simulator system to shoot at an 8-inch target at a simulated distance of 200 yards. Participants received either (a) no instruction, (b) only an overview of rifle marksmanship, or (c) an overview and instruction targeted at particular skill gaps. Support was found for the idea that multimedia-based instruction can be highly effective for novices, with a large increase in shooting performance observed after 10 to 15 minutes of multimedia instruction. Subsequent individualized instruction using very short multimedia instruction appeared to be effective in shaping participants' skills toward an "ideal" state consistent with shooting doctrine. (Contains 2 figures, 11 tables and 1 footnote.) [This report was supported by a grant from the Advanced Brain Monitoring, Inc., PR/Award Number 20064169.]