I use a large number of Rock Creek barrels. In my experience they are the best there is for 308 and 338 cal projects.
I have not used many of his other calibers, but the 308s and 338LAIs I build here all with RC barrels consistently deliver 1/4 moa accuracy, which is something I have not experienced with most barrels. Usually you get some that shoot incredibly well and others that do not. Having used about 100 of Mikes barrels in 2007, I have yet to have 1 not perform incredibly well.
From a gun makers point of view , they tool extremely well and need virtually no exterior refinishing once the machine work is done.
They clean easier than any barrel I have ever used.
Long Distance is BETTER than being there