Personally, I never use a bipod anymore. I got sick and tired of that thing unbalanceing my rifle and digging into my back dureing carry mode when going over hill and dale.
I found a great little invention that with a little practice, is almost as steady as a bipod, and can be used with great effect with any position, from standing fully upright to lying on your belly or sitting on you butt. Very easy and quick to adjust as well.
It's a monopod that doesn't attach to the rifle.
There is a wide "V" on top to rest the rifle in for whichever position you are useing, it's made out of aluminum/tifanium, very tough and doubles as a great walking stick. It also has a handy wrist strap.
A nice thing about it, it only costs $30.
I don't hunt without it anymore, it is one of the slickest hunting aids to come out in a long time. It's always been useful, even when it only gets used as a walking stick.
bearhunter