40mm Bofors gun operation mechanism question

[Tony Smith]

Originally posted by Godwin Hampton
As the autoloader pulls the rounds down towards the feed rolls, the clip travels in a groove down the autoloader's curved rear guide. This groove becomes progressively narrower at the front, forcing the buttons inward and releasing the hooks' grip on the cartridge. Thus the rounds are one by one freed from the clip. Godwin

Here you can see the clip being fed into the Autoloader, and the ramp which lifts the retaining claw buttons as they are drawn down.