NO.
1. Do verify that the flash holes are centered.
2. If loading boat tailed bullets, they'll take the dings out of case mouths when seated. Chamfering makes the bullets go in a little easier but with boat tailed bullets isn't entirely necessary. If seating flat based bullets and the case mouth is too out of round, you may have to break down and size it.
3. The factory verified correct case dimensions; why do you need to?
I RARELY size or check new brass before loading but, if you wish to complicate your life, go ahead and do so.