I shared your frustration trying to find the combination that worked for the different types of chain.
Conversion chart:
http://sixmm.com/tech/cvtcht.htm
5/32" is 3.9688mm which heavily dipped and uncored will fit a Pandora, which needs 4.3mm. Personally, I think the bead release cracks too much with this heavy of dipping. Core lining this bead will fit a Troll or AYU chain.
I use a 1/4 tube mandrel and the bead release is just enough to add for the 1/4" silver tubing. 1/4" is 6.3mm, but after allowing for the wall size in the tube, it works for Pandora and Biagi.
I have a chart on my desk at home that I will post if this isn't enough to help you.
BTW, silver is down today--I am itching to buy more tubing.