Taylor, Bill didn't spend a lot of time on details. I once bought a barrel from him that was 8 sided, but was not even close to octagonal. Another really senior shooter in my area once ordered a .54 cal half stock type barrel & received exactly what he ordered. The only problem was that it appeared as if Bill had used it as some type of a backer for something else that he was drilling, or perhaps used it to check his drill stop with, & it basically looked like a Swiss cheese. Nothing into the bore mind you, just riddled. Full retail. He exchanged it without comment.
Roger B.