Make sure the chamber is clean and that the extractor is clean and free to move. If you know what the ejector looks like, be sure it is intact. The most likely problem is the extractor spring, but it might just be dirt.
Yes, it has a straight down bottom eject.
No
Your browning auto-5 wa made by FN of belguim for browning in 1931.
your browning auto-5 was made in 1925.
your browning auto-5 was made in 1927.
No
With the serial number that you provided,your browning auto-5 shotgun was made by FN of belguim for browning in 1907.
Your browning auto-5 magnum shotgun was made by FN of belguim for browning in 1965.
They refer to this handgun as the browning model BDA (browning double action auto) pistol.
what is the question?
your browning auto-5 was made in belguim by FN in 1914.
Your browning auto-5 shotgun was produced in 1931.