I have a 6x47 lapua on a rem700 SA. the action has been trued and its sitting in a macmillan A5. it has a 30" lilja #8 contour and the barrel is completely free floating. just wondering if the weight of the barrel on that action could be causing accuracy problems? cant get the rifle to shoot that well, just wondering if i cut the barrel back to 26" would it make the world of difference?