lagopus - that MTs109, if it was that, was indeed something to shed a tear for. One of the Best Russian guns ever, second only to MTs11 (the Beesley self-opener) and MTs9 (the Boss sidelock O/U). I don't think I'll be writing about ammunition, the book is getting out of control in term of size as it is. Intresting info, though. Explains the shock of my youth, when I came across a lot of cartridges marked Baikal, loaded in 67.5 mm case. Didn't quite make it to Britain, I presume, but at that moment I couldn't make head or tail of the strange shell length. I may ask you some questions about that catalogue, if you don't mind.