What I have here is a FBI Ideal mold created by Elmer Keith. The father of the 357 mag.
It is a hollow point mold, used by the FBI and other police from 1936 until 1966.
The punch is not original, I had this one custom made to make a more expanding boolit.
I shot these out of a Ruger Blackhawk 357 at 1530fps! They are easier to hold on to at about 1300fps.
$125 to your door Thats what I paid for the punch, you get the mold for free, and shipped.
I have a boat load of 38sp and 357 mag cases too, but I have to get a count before I can list them.