Many years ago I bought a 9mm FCD pistol die to attempt several things I thought were causing me issues in reloading the 9mm Luger round.
Upon use I found it easily over crimped, resized every round, and boolit, and would seat boolits deeper as dirt filled up inside the die and really over worked my brass!
I had several shooting friends experience the same problems and we kind of set the FCD dies aside and quit using them.
Last year I moved into the world of the 40 S&W, bought a CZ Tactical Sport, and started reloading the 40.
With the odd failure to feed completely I started playing around with crimp and overall length, thinking I was to long and running up against the rifling leade, or over crimping or both.
I once again considered the pistol version of Lee's FCD die thinking maybe the case's were slightly Glocked, still love the rifle FCD, and so ordered a FCD die for the 40 S&W and, to help with shipping I got one for the 45 Auto as well.
Upon receiving the dies I went against my usual methods of loading and actually read the instructions!!
Several surprises were revealed to me as I looked at the instructions: gone was the ability to seat bullets! The seater plug having been replaced by a hollow plug with a very nice taper ground into the ID of one end. No crimp cut into the die itself everything was controlled with the hollow crimping plug.
I also bought the bulge buster option which replaces the top of the FCD die and removed the hollow crimping plug.
Cautions were printed concerning heavily "Glocked" Brass, why do people buy those things??, as the web of the case may have been damage in a unsupported chamber.
Fortunately I had no such problem and actual found my early Lyman carbide die set was oversizing my case except at the very base, 100 already sized case's were put through the Bulge Buster set up with almost no contact with the carbide sizer ring in the FCD die until it actually got to the rim of the case where I felt some slight resistance as the case went into the die.
Next I thought I'd run 100 already loaded rounds of 40 S&W through the FCD die and set it up according to instruction:
Run the die body down until it touched the shell holder, insert loaded round into shell holder and run it up into the die.
Held firmly against the base of the die you then adjust the crimping plug in the same manner you would a seating plug: you turn the adjustment knob in until the crimp plug touches the boolit, retract the loaded round and adjust the crimping plug in a half a turn!
According to Lee this should be set to provide all the taper crimp needed to make any round feed properly, and if not a slight turn in should be attempted.
After following the set up instructions, with the half turn in, Used a magic marker to help set up that half turn real easy, I ran 100 pre loaded rounds through the FCD die.
What a difference!! I felt the crimp hit on the first round and the case's were much smoother at the mouth after being run in the die, guess I was afraid of getting to much crimp and never got it all ironed out until the FCD die did it's job!
I have maligned Lee for the pistol version of the FCD die many times, glad I took the time to see a later production version of the FCD die.
I thought a posting explaining my experience might help others and offer an apology to Lee for not having taken a second look at the FCD die sooner.
heavyMetal