Start is 39, max is 43.3 on Hodgdon's website.
I'm using a Redding BR-30 measure. What I was getting at is there's mostly no need to weigh charges to a gnat's eyelash. If your Lyman 55 does that well for you then you're all set to load straight from the measure too.
I'll be away from the computer for a few hours, but I'll check back later.
