I remember a post a few months back where, I believe it was Warbird fluted a barrel. I believe it was a heavy or medium weight though. For sustained shooting with as little shift in POI because of barrel heat I believe you will have to get a heavier barrel. The POI change on my standard weight USGI barrel is not that severe as to effect my scores a whole lot. My rifle can out shoot me in 3 position matches.JMO, but I don't believe there is enough metal on a standard contour barrel to flute.