There's a lot of great information on barrels in the forum, but I don't see a lot of discussion about where to source barrels. I'm looking for a barrel blank for a RimX (NRL22 build). I'd love to find a Mullerworks or a Shilen, but it seems they're hard to come by. What's the best way to get a quality barrel? Order and wait? What kind of wait times can I expect for the better rimfire barrels?