Rapier,
Not one of my better moments, eh sir? Maybe not. In my profound ignorance, I called this post Dillon 9mm as (as previously stated) the Midway flyer listed a Dillon barrel and "9 x 23 mm Dillon Ammunition".
I posed the question since I obviously knew nothing about it. Since this forum proved less than informative, I searched and found the 9 x 23 mm on other sites. You're right, it's not a Dillon and it apparently has been around for a good while. An interesting old thread on another site:
http://www.thehighroad.org/archive/i...hp/t-1667.html
Thank you,
Mike