Im using one of their first dies and have no bolt click until hot loads. The thou larger at the 200 line won't change anything since the brass starts out significantly smaller than the 200 line of the improved chambers. The BC die sizes it quite a bit smaller than the chamber dimension.I wonder if I have one those first dies Ryan. I have a 33° BC die from the first run, and I still have clickers. I wasn't going to say anything because it's not what's being conversed here. I may have to contact them and find out. Idk if you're still using the chamber body dimensions from Bjays 33° version or if things changed recently, but Wheelers chamber is a thou larger at 200 line and almost 3 thou larger at the shoulder.