Vintage work crew photos

[bruce.desertrat]

Guessing the gun barrels are all the same length. Each gun is set a bit further back to allow the ammo to flow past them.

Yes, also to allow for the guns to be closer and also allows for better cooling. here's a link to a diagram (also shows why the wings looked so stubby...the guns are set quite far out:

https://drawingdatabase.com/wp-conte...14/09/p-47.jpg

And found this image of the guns in place http://www.368thfightergroup.com/images/Browning_1_.jpg