Answer

Volquartsen makes a great product. Green Mountain barrels impressed Bob awhile back. No one sets out to make a bad barrel so I think you will not be disappointed with whatever brand you choose. The Butler Creek barrels are quite popular in this area and they seem to work well but I have seen one or two that had some issues. Clark, Hart and Lilja are pricey, but top of the line. Check your Brownells catalog. Expect to do some fitting on any barrel you get for your gun.