The RCBS ram priming unit is specifically designed for .50 BMG cases. This unit will allow you to prime on the upstroke for maximum efficiency. It works by holding the .50 BMG case in a shell holder on the top of the press. The press ram is fitted with a special primer holder and by moving the ram up, the primer is inserted into the case.
Specifications and Features:
RCBS Ram Priming Unit 88772
Allows you to prime a .50 BMG shell on the upstroke
Includes flat and cupped primer plugs
Single Stage .50 BMG Reloading Presses threaded 1-3/8 x 12