Having the cylinder on my 638 rechambered to 9mm has opened up so many possibilities. The reloads of course are so much quicker (147gr jump into the cylinder). Reliability has been unaffected. One range session, I purposely varied between 9mm and .38 and never had a hiccup. No stuck cases, no problems loading .38s after several cylinders of 9mm. And with the greater availability and variety of 9mm; I won’t need to curb my sessions.

It works! Really adds a layer of fungibility to my .357 revolver.