I'm deciding on a barrel contour for a hunting rifle build (300 PRC) and my research on barrels has brought to light the question of barrel whip. We know that heavier barrels are supposed to be more accurate, but I wonder what can be done to mitigate the loss of accuracy as one goes with a lighter barrel. I have a theory that fluting a barrel helps mitigate barrel whip. Any thoughts on this? I also came across a strange contraption on Amazon: "LimbSaver Sharpshooter X-Ring Barrel Dampener." For $9.99, people are swearing that this thing is helping their groups considerably. Is this for real? Is it only helpful to light-weight barrels? Why would this be okay but having a floating barrel be so important?