Tony Williams wrote:It was quite a few years ago now, but I can't recall noticing the blast. I was wearing double ear protection (as always at Shrivenham) which probably helped!
I do recall observing the muzzle flash from the FG 42, though - a ball of fire about a foot in diameter, clearly visible even in broad daylight!
Here is my Fg42 -

It is a Krieghoff 1944 parts kit, that has been reconstituted as a 922r compliant semi-automatic - (it is not one of the ones made by SMG in Texas)