Hello, Leadville:
I now use only Accurate for bored cavity and tight tolerances.
There have been serious quality control problems with "cherried" (not bored) moulds. I have had three new Lyman 515's with different ogives, different front band shape, .002" parting line shift, and up to .008" (not a typo) out-of-roundness. QC on some RCBS moulds has been frustrating, with sprue plate hole alignment so far off center that the outer edge was opposite the base edge. When questioned, the customer service rep. said "meets spec's".
Sizing will not correct out-of-roundness issues because the nose and lube grooves will remain out.
Two Flints has a Spencer Oft Requested Info ("SORI")section here. Lots of helpful info in it.
Smiles.
El Supremo/Kevin Tinny