First I'd say, "It all depends"
and then I'd say, "I think this is a question that only you can answer for yourself"
...
12 years I started a thread about this very subject, because I read the following from page 41 of the RCBS cast bullet manual #1.
I don't necessarily agree with this statement, but RCBS found it necessary to publish it, in their book.Effect of Sizing
Experience has shown that each .001" of sizing results in about an extra inch of group dispersion at 100 yards. And don't think your barrel can size any better than your sizer/lubricator. It can't. The bullets must be perfect out of the mould.
https://castboolits.gunloads.com/sho...-less-accurate