I used a Harris bipod a few years ago. It was on a Remington BDL SS in .270, but I don't remember the model of the bipod. I do think that it was adjustable to about a couple of feet or so.
When I used it, I was sitting down with my back to a tree and had the legs extended to the max setting. I was shooting slighly downhill at a hog. It was a sturdy rest and the shot went exactly where I wanted it to go. The only thing that I didn't like about it was that it was a little too heavy for my tastes.
Zachary