Thanks for the input.
I had already checked VTI Web Site and several others with no encouragement.
I also discovered that American Western Arms bought out ASM around 2000 - 2001. AWA also referred me to VTI.
So.... I decided to call this morning. VTI bought all remaining ASM parts when they sold out but did not receive any 44 Caliber cylinders?
They strongly recommended the Pietta 1860 fluted cylinder saying that it could be made to work.
I have made contact with a local Pietta Dealer and I'm waiting to hear back.