I just had a 386 Mountain gun milled for moonclips by Tom at TKCustoms. It cost about $100 and took 4 weeks. Since there are few speedloaders for 7-shot revolvers, I felt moonclips was the way to go.
I have several revolvers that use moonclips: 610, 625, 646, 940, and 2 627's. The 627's are...