Your serial number indicates that your Browning auto-5 sweet sixteen shotgun was made in the year 1966.
fn a5
Go to Browning's site, Support, Date Your Shotgun.
see the Browning website
1928
Browning's web site has a sn search function.
your browning auto 5 was made in 1922.
1950
Browning.com has a sn function under customer service.
Browning.com has serial number data under customer service.
Your shotgun was made in 1947 with the serial number you provided.
No
YOu must call Browning.