I have not heard of those in a while. I need to look and see. I think I have one of my grandfathers old long rifles. Its a single shot bolt action. It may shoot shorts. I cleaned it a few years ago and it was some kind of dirty. Not like my grandfather, he usually kept his guns clean. He would not like some of the cleaners now. The ones that are cleaners and oil all in one. It was hoppes cleaner and then oil. I think it was rem oil.
I still clean mine that way..