Terry, that's what usually happens to chamberless guns here in Britain and it adds value rather than detracts from it. Your 12 bore chamberless made into a 3 1/2" 10 makes it useable. It shows how strongly made they were. CJF's 8/10 would no doubt be re-chambered to an 8 here and double its value. As 8's can't be used for wildfowling in the U.S. it is best left original as a collector's piece. As for the 'Perfect' brass case this was Kynoch's trade name for the brass cases for chamberless guns. I have quite a few of the Kynoch Perfect cartridges in my collection. One of my 3" chambered 12 bores is marked on the top of the barrels, 'For 3" Paper Cases Only' as an aid to preventing the loading of a thin brass case and upping the pressure. Lagopus.....
