I recently became the caretaker of a late percussion 12GA Purdey double ML shotgun. It doesn't have a ramrod mounted beneath the barrels but the case contains an ebony loading rod. The rod has a threaded brass tip and I need a loading tip for it. The thread on the end of the rod is 12-28. Would anyone know where I could find a 12GA tip that would fit this thread? I also have a cleaning rod that came with the gun but it uses a larger thread that appears to be compatible with more modern British cleaning equipment. The cleaning rod won't fit in the case so I assume that it is a later addition to the gun. Would the gun have been originally cleaned using the loading rod with cleaning tips? If so I would also need cleaning tips threaded 12-28. I've taken photos of the gun today and I'll post them soon for all to see. One nice thing about this gun is that the dimensions are quite modern, 1-3/8 X 1-1-7/8 X 14". The bores are .732.