I am sure that Keith is right and that like most custom rifles, there are a lot of guys (there is at least one gal I have seen building custom .22 bench rest rifles also) out there that can build a quality gun. Now that I am a member of Williamsport 1,000 yard club, I want to not only shoot 50 yard Rim Fire Bench Rest, but also their 200 yard Bench Rest shoots. I looked at a few used Rim Fire Custom Builds at The Shooters Corner and will probably buy one for 50 yards, but I talked to Bob White about getting a custom Long Range one built. He told me HIS go to guy (Bob is an accomplished gunsmith that has built a lot of winning rifles) for Rim Fire is, Gordon Eck. 845-985-0001.
I have a Stiller 2500x action coming and it will go to Gordon for the barreled action work, including barrel tuner. In talking to him, he no longer does stocks, but I have had great results with Doyle Anglin so the barreled action will go to him for the BR stock.
Bob