I agree with .45Guy. The only thing I've ever heard of was feeding problems.
I have a Browning B-92 in .44Mag and have fired .44 special without problems. The Browning is made by Miroku, however, and they have a reputation for better guns than Rossi..
I just obtained a Rossi "Ranch Hand" in .357Magnum and the workmanship issue is real, however I am having no problems feeding .38SP through it.
You will probably be OK.