RCBS Mini Grand Instruction Manual - Manual (Page 12)

STEEL SHOT CONVERSION UNIT
The Steel Shot Conversion unit consists of a larger inner diameter wad seating/shot drop tube. This larger inner diameter
allows for the dispensing of large diameter steel shot (#5 and greater). This unit replaces the installed assembly which
accommodates #5 shot or smaller.
Installation of Steel Shot Conversion Unit. To prevent a messy mishap, first, remove and empty the Hopper assembly.
Using a 15/16” wrench (not provided), remove the Wad Seating/Shot drop assembly from station 4. Install the one piece
Steel Shot tube and tighten with the 15/16” wrench. Slide the white O ring onto the drop tube. Re-install the Hopper
assembly. Install proper Powder and Shot Bushings.