kludge, yes you can. But only use 38spl cases to make 357 cartridges - do not load 38spl to 357 pressures. And make sure those cartridges will not chamber in a 38spl cylinder. I used to crimp just behind the first lube groove land. And that's another thing - make sure those bullets cannot be pushed back into the case to fit a 38spl. (My loads were mild anyway, using the volume to load more fast rifle powder for rifle loads).
Regards
Peter