Running sccs2rcs in a directory with an SCCS subdirectory will convert all the SCCS files to corresponding RCS master files in a new RCS directory; the SCCS data itself is accessed read-only. It will complain and terminate if any of the SCCS files are checked out, or if the RCS directory already exists and is non-empty. If the directory contains snapshot auxiliary data produced by Emacs VC mode for tagging, that will be used too.
