Not 356TSW... I have a 9X21 Barstow barrel for my M39-2... I see that they are no longer making barrels other than 1911. I bought 500 pieces of Starline brass but have only made up a few test rounds... before I got sick. There was a magazine article about this by... Pistolsmith John Lawson... American Hangunner May/June 1993.

I foolishly lost the factory 9mm barrel, so was in a bind as far as store bought ammo until a forum member gifted me a spare.

I'd love to learn more about how others make out with this. Maybe I'll revive this project.
Russ