Boots Obermeyer, Mike Rock, John Krieger, all make the best. When I was on the NRA Tech staff and later at Ruger I bought lots of industrial test and experimental barrels from Boots, highpower competition, benchrest, experimental and "wierd" stuff for military research. The best money can buy if you can get in line with the government labs.
Some of the best barrels I have are Boots tooling try-outs from set ups for government and experimental work, or stuff that was overrun from a government contract or maybe gaged up a thousandth oversize and couldn't be shipped, or a pressure test barrel with bad piston hole which could be cut off at the port, turned and put on a varmint or hunter bench gun.
