Trying to find authentic P-47 Gunfire sound of 8×50 Calibre, anyone help?

I have managed to track down various 50 calibre gunsounds, but not an uthentic P-47, 8x50cal firing

I understand, as the guns fired left to right, de-synced, that the impression it gave was of a Buzz saw, sound

Does anyone have this sound file at all?

I have seen footage on Youtube, but again this footage had the sound added afterwards, so I cannot presume it is accurate, but I am asking here just-in-case

Cheers, MP