Use a Sharpie to make a stripe on the top of the Lee seater cap. It makes eyeballing reasonably even increments a lot easier.
Great minds think alike. I am ahead of you on this one MAthman.. I get it dialed in with the Lee I may adjust the RCBS seater and tighten the nut down. Having the turret allows me to a have a choice of two seating dies because I don't use it for dumping powder on rifle loads. I only dump for pistols. .
Maybe I will try that .003 as a fine tuner after getting this ,04 test done.
Wish I could find thee original post here suggesting that.