Okay, I have read the entire thread. If I am understanding everything correctly, replacing the expander plug in my 9mm powder through die with the 38 S&W die expander plug will put me on the road to solving my problems without having to resort to bushings. I don't use the die to actuate a powder measure but I do pour the powder through the die. I set up the expander die in one single stage press and the bullet seater die in another single stage press. That way once I get everything set up I can leave it until I am done. I am currently using the Lee 124 grain 2R tumble lube bullet sized to .357 in a springfield XD subcompact. When I pulled a bullet from a case it had been swaged down to about .356 and I had leading in the barrel after only 20 test rounds and accuracy was less that stellar to say the least. Hopefully this will put me on the right track. Thanks for all the great information.