For Sale RCBS expander die. Suit those who reload cast bullets and need to 'bell' the case mouth. Includes three case mouth expander buttons in .416, .375 and .284. I used this to slightly open the mouth of my .416 Rigby cases before loading any projectile. Cast and jacketted. Seating then closed the case mouth on the projectile. $75.00 includes postage and handling in Australia.