https://www.youtube.com/watch?v=WMuUpI8ro_g
Saw this today - the chap firing is one of my schoolfriends grandad - Major Robert Turp. At the end of the war he was tasked with travelling round Germany / occupied countries to all the arms factories to find any interesting designs they were working on. After that he worked for Sterling, then became an arms dealer. He wrote a book called Gunrunner : The Confessions of an Arms Dealer' which is worth a read.
https://www.abebooks.co.uk/first-edi.../1410291870/bd
We used to go round and see him & he'd spend ages telling us stories of his travels! He used to give me loads of catalogues from various arms companies - including this one from Sterling: https://www.dropbox.com/s/7mkpx9rxkd...logue.pdf?dl=0
Another shooting friend of mine had a Para Pistol - it broke and Maj Turp arranged a free repair via Manroy Engineering. I should have asked him for an apprenticeship!!