That'd be appreciated. no the reloader doesn't know how hence the reason the reloader is part of a forum that has many more experienced members.
How does one measure taper. When the die is set up to push the shoulder back only 0.002 the die does not take in all of the case. much of the web is left outside so i really wouldn't be surprised if it is the web dimensions after firing.
in fact i recall the unsized (unsized by me but sized by the factory) factory brass from prvi fitting into the chamber fine.
Now the question is - how do i deal with this assuming i only want to push the shoulder back 0.002?