I have a Shilen barrel .It's also Melonited.It has alot of rounds through it and virtually no wear. Actually Shilen is my favorite barrel maker.I like Brux too but I'm high on Shilen.In the past 2-3 months I have had the opportunity to bore scope several (5) Shilen Match barrels. These have been customer supplied barrels, and I haven't chambered 1 yet, as I have other work I need to finish. They scope good, no tool marks. This has been a 'mix' of both SS and CM. There seems to be no mention of Shilen on this forum. Many other button rifled manufactures get mentioned, some that aren't even lapped.