What's the advantage of Ruger Mark III's fluted barrel?

[kurusu]

Originally Posted by sheepherder

4" tapered barrel, stainless. Interesting that Ruger serializes the barreled receiver rather than the grip frame. I have not seen any aftermarket 'barrels' for them, but I'd be interested to see if they are serialized...

To me yours is the perfect Ruger. Except maybe for the finish. I prefer them blued.