Hornady microjust seating stem
 

Can anyone tell me if it is possible to fit a Hornady Microjust micrometer seating stem to another makers dies? Say RCBS instead of the Hornady new dimension dies? This item doesn't fit my Australian Simplex dies.
Thanks for any input.
PS Dont say contact hornady because all they'll say is "No way go buy a new set of Hornady dies" and RCBS will say "No way go buy a new set of RCBS custom dies"