The RCBS Ram Priming Unit for the 50 BMG is a great priming tool for reloaders who want to prime on the upstroke for maximum sensitivity. The unit works by holding the cartridge case in a shellholder on the top of the press (where the die is typically installed) The press ram is then fitted with a special primer holder (plug assembly). By moving the press ram up, the primer is inserted into the case.
Includes rod assembly, primer cup and shellholder for 50 BMG
Fits: Single Stage Reloading Presses with 1-3/8"-12 thread (Will not fit standard size reloading presses)
Function: Priming Unit
Note that the 50 BMG ram priming unit is available in two thread sizes, thread size will need to match thread in the specific reloading press