You will have to call Browning with the serial number.
Magnum
Browning did not make the Model 70, Winchester did. Also, the serial number is not a valid Browning serial number for a 7mm Magnum rifle. Please doublecheck your information.
Your serial number indicates that you have a Browning auto-5 Magnum shotgun that was made in the year 1965.
Your serial number indicates that you have a Browning auto-5 magnum shotgun that was produced in the year 1965.
The letters PY that are in the middle of your serial number,indicate that your Browning Auto-5 Magnum shotgun was made in the year 1982.
It is a Magnum made in 1966.
Your browning auto-5 magnum shotgun was made by FN of belguim for browning in 1965.
Check the receiver and barrel.
This gun is a 12ga Magnum made in 1963.
Where will be marked on the barrel or receiver. When is 1977.
You Have a Browning auto-5 shotgun that is a Magnum chambering which was made in the year 1968.