Some people use the chain halters to break their calves, but they are "poo-poo'd" by professionals at a show. They should have normal rope halters on at the show. And yes, the rolled nose leather show halters have chains on them.
I have always just used rope halters for all my halter breaking & training. I always make sure I try on the show halter prior to leaving the farm, because some cattle "freak out" at the chain, which wouldn't happen if they were used to the chain halters. I just feel they are too harsh for the everyday use.