This followed me home from Texas last week. It originally came out of an estate so I am sure there is a seating die that goes with it, at least I assume so.
It is a 30BR neck size and decapping die. It uses a bushing for the neck and a 310 die decapper rod. The thread size is.671" x 20 tpi.
The die is well made, and a good use of the Tong tool.
But, who made it?????