I use a different technique to set up my resizing dies using Larry Willis' "Digital Headspace Gauge". I set it up for a .002" bump on the shoulder using the following procedure:
1. I take a case fire formed in my firearm. The case should be a tight fit so that it's as close as possible to chamber dimensions.
2. Set the case in the Digital Headspace Gauge and zero the gauge (can use Hornady or RCBS gauges). Here's the link:
Innovative Technologies - Reloading Equipment
3. Insert a .003" shim on the FL or redding body die and screw the die in the press till it's snug on the shellholder. Here's the link for the set of shims:
SINCLAIR INTERNATIONAL : Skip's die shim kit - (7/8-14) (22-400 ) -
4. Resize the case with that set up.
5. Place the case in the Digital Headspace Gauge and get a measurement of the amount of shoulder bump.
6. If the bump measures .005" all you need to do is replace the .003" shim with a .006" shim and you get a .002" bump.
The beauty of this set up is that you don't need to touch the die even if you have multiple guns of the same caliber - you just change the shim in accordance with the bump you need. Also you can use another shim if you want more or less bump.
Occasionally, you get a minimal dimension chamber where you can only get less than .001" with the FL or body die. When this occurs, I use a dedicated shell holder which I sand on a flat surface to take off .001" or so.