Tea Drinking Prop Guns and Baguet Launchers

Sorry this vid is so long but such is the nature of a deep dive.
here's some time stamps so you can find whatever gun you're looking for:
7.5mm MG Mess demo - 5:42
20mm HS.9 hangar - 7:21
20mm HS.9 demo - 11:09
20mm HS.404 hangar - 12:10
20mm HS.404 demo - 17:48
40mm Vickers E hangar - 18:52
40mm Vickers E demo - 21:14
7.7mm Browning hangar - 22:52
7.7mm Browning demo - 27:28
40mm Rolls-Royce/Vickers S hangar - 29:10
40mm Rolls-Royce/Vickers S demo - 33:02
40mm Vickers p - 34:10
57mm Molins - 35:53
20mm Hispano mk 1 hangar - 37:02
20mm Hispano mk 1 demo - 41:58
20mm Hispano mk 2 hangar - 45:26
20mm Hispano mk 2 demo - 47:07
20mm Hispano mk 5 hangar - 49:58
20mm Hispano mk 5 demo - 49:27