I had a 4" 686 rechambered to .38 Super and also had the cylinder milled to accept moonclips. Works great. Someone has already pointed out the .38 Super has a larger OD than .357 cases, but the bullet specs are the opposite. The .38 Super takes .356" bullets vs. .357 for .38/.357 cartridges. These differences are immaterial if you shoot jacketed bullets. Lead bullets would require trial and error testing.
It is silly to fret about the minor difference in pressure for .38 Super vs. .357 Magnum. That's the kind of comment you get from 'armchair' shooters.
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Bob.
SWCA 1821
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