Perhaps I can explain.....The 543R funnel fits inside the neck of small 25 caliber cases such as 25-20.
However, when I went to install this funnel in my die, and lock it down with the set screw, I noticed that the funnel part that fits inside the case was almost sticking out of the die body. No problem says I, I will just adjust the whole die upward in the press. Wrong...I ran out of threads in the top of the press when the ram had reached it's full stroke.
Perhaps some kind of adapter could be made that I could screw into the press to give me more 7/8x14 threads on the inside of it to mount correctly?!