After borrowing the .430 expander plug from my 44 Special Cowboy die set, now in the 44-40 expander for my .430 bullets, I ordered another plug that can be dedicated to an expander setting, replacing my ".428" that came with the 44-40 set. I am posting to note that one doing the same will find the part listed as 44 Russian, while 44 Special is mentioned in the expanded description.
I have used the .430 expander and now get none of the case bulging I had with forcing .430 bullets into the .428 case mouth.
I checked all my brass and trimmed anything longer than 1.295, looking for a consistent crimp. Every round of this latest batch plunked freely in my gauge, no FCD or any other rework.