I would try get the reamer print, a couple of us had 6 creeds chambered with .124 freebore, dtac perfect base of boatail just above neck shoulder, 110 could fall out of the case, 105 hybrid 1/3 the way up.
I'd think .105 freebore ideal.
108 eld match feeds perfect here too.
I have the reamer. It is a .160 free bore from the print but I don't have an accurate way to measure the reamer itself. I also have a brand new JGS .183 freebore that I am thinking about throating out my chamber with. I am shooting several loads today ranging from .010 off to .10 off. If I get a good group, I'm leaving it alone.