https://www.tngun.com/fundamentals-of...
http://www.amazon.com/Rifle-Marksmans...
This video is an older (1999) video from the US Marine Corps dealing with rifle marksmanship. Every Marine is a rifleman, and the Corps prides itself on its marksmanship training. This video may be old (it was created the year I was discharged) but its message is timeless.