Not that I can tell. Though with the bipod the flex in the forend is more obvious. When I fire, the rifle kicks sideways which isn't in itself uncommon just that I wonder if in that instant there's enough flex that the stock contacts the barrel. I put my support hand under the butt when I shoot whether seated or prone. It's worked fairly well for me and I still use my backpack to some degree to help support the butt too. As you suggest with the side by side, I'll reset back to how we had been shooting before the bipod. I've also wrapped the whole thing with burlap and twine. I'll remove the variables one at a time and see what clicks.