Here's a nice video that shows some barricade shooting techniques: http://www.precisionrifleseries.com/news-and-events/pro-shooting-tips-2.html
Pay particular attention to which knee he raises. It's the opposite one you raise for unsupported kneeling shots. You can put your elbow on it for support. If the barricade is high, you put a pillow between your elbow and your knee.
Pay particular attention to which knee he raises. It's the opposite one you raise for unsupported kneeling shots. You can put your elbow on it for support. If the barricade is high, you put a pillow between your elbow and your knee.




















































