I would take with a pinch of salt what Guy Gibson quotes, as he claims to have shot down two German bombers at night in a Hampden, with one fixed 303 Browning machine gun with 400 rounds of ammo aimed by a ring and bead sight, in the dark, at night !

I can’t find any reference to these claims. Only one claim for a probable over Lorient 24/24 August ’40 on behalf of his gunners. This is referenced to ‘Those Other Eagles’, Shores, 2004, page 210, but unless this was some form of freelance intruder op the raid certainly doesn’t show in Middlebrook/Everett for that date.

Enemy Coast Ahead (full version) mentions the incident, during a minelaying trip to Lorient, giving full credit to the gunners.

Can you point us in the direction?

Moggy