I have a Ruger NMBH convertible in 10mm/40 S&W. I have scoured the internet for a couple of years, looking for the 38-40 cylinder. I've seen a couple for sale, but always a day or two late (they go fast!). I found Borchardt Corp., which does Ruger cylinders, and called them about the 38-40. They sent me paperwork detailing which measurements they needed from my existing cylinders, and how to properly measure them, which I sent back to them with all of the required measurements. That was the first of this year. When I called them in June or July, they didn't have any record of my order. Not sure where it went astray, but I resubmitted the info, and I'm currently waiting for them to get to my cylinder.
By the way, no money has changed hands yet.
By the way, no money has changed hands yet.