From my experience, first thing I think that you should do is read the directions that came with the die. I don`t say this to be rude, but because I found out the hard way that they`re not all set up the same.
I have a couple of dummy rounds set up for a couple load combos that work well for me.
You will have to `sneak up` on your desired COAL, for the first round, meaning adjust it down a little bit at a time.
Once you have it set they should be all realitively close, within a few thousands, maybe better with an ogive guage.
Of course different bullets will require re adjustments.
Does that help?