Chris,
I'm using a bipod on my new 243 barrel with the factory rynite fore end. I figured that's what I was going to use in the field so I might as well develop loads with it on the rifle too. I also used a bipod with my 209x50 barrel and the poi did not change when I went from bags to bipod. My contender pistol barrels will most definitely change poi depending on where you are resting the fore end on the bags. Mike