Redding has a five piece shellholder set is designed to adjust your headspace. I believe they start at +.002 and go to +.010. Sinclair International has them for about $45.00. It problem that you have is because dies are cut differently, even from the same MFG.. I believe that this is money well spent. The other alternative is to slip a feeler gauge between the shell holder and the die and adjust the die to the feeler gauge. This only works if you have a press that doesn't have a lot of slop in the linkage. This doesn't have the same degree of accuracy as the shellholders.
Best regards,
Grit