Can anyone point me to a set of videos that demonstrate the standing, sitting, and prone positions? I'd like to be able to get into position and then compare what I am doing to what I should be doing so that I can make corrections to my position at home.
There is a black and white playlist on youtube called m1 garand training videos. Good start.
Another good tool is to video yourself in each position, actually shooting if possible. Watching the video, you can be your own critic, and go down the checklist of what you're doing right/wrong/better.