Really, I'm just using .38SC cases to load what would be the equivalent of .38Spl. A common trick in ICORE. The reason to do this is they extract much quicker and have less "wiggle" in the moon clips. A passing trick though, what with the S&W 929 out now. Everyone at this year's (last month) ICORE Championship who was shooting a 627 will have a 929 next year.
Anyway, I'm still stuck with my 8 shot .357, so .38 SC it is. Took it out to a rogue action match last month and really had a hard time loading the moon clips. Had my smith look at the chambers and he said they were chamfered as much as possible already. But he suggest I put a significant roll crimp in my ammo. That would give less edge to hang up. Easier said than done. You can't use a .38spl die because the case isn't long enough. True .38SC dies don't roll crimp because the bullet is the same diameter as the case. The only way I can get my 9mm die to do this is by taking out and reversing the seating plunger to drive the crimping sleeve (Hornady) down far enough. This greatly improved the reload. I can "throw" the moon clip at the cylinder and with just a might of jiggle get it to drop in.
But I hate to waste a 9mm die for this. SO, possessing Michael Bane's touch with the Dremel and having access to a horizontal band saw, AND having a spare .38spl crimping die....

The band saw did great, smooth, flat work. And my chamfering with the Dremel was pretty good too. But alas still not short enough. I'm going to have to take another 1/4" off. Then I'm not sure it will screw down far enough before it reaches upper body. I will also have to re-chrono these and adjust possibly adjust loads.
Maybe I do need to just chunk it all and get the 929 at this point. One less caliber to reload for.