I have had mine for 15 to 16 years.
Call Browning with the serial number and they will tell you.
This question is not answerable as Browning made dozens of different bolts.
your browning T-bolt was made in 1967.
Browning does not make an A bolt shotgun, they sell an A bolty rifle
Your Browning model safari bolt action rifle was made by FN of belguim for Browning in 1969,with the serial number that you provided.
Your Browning T bolt was made in the year 1971.
Try e-gunparts.com, Midwest Gun Works, Browning.
You will have to call Browning with the sn to find out.
Your browning T-bolt with the X6 suffix to the serial number indicates that this browning was made in 1966.
Your browning safari bolt action rifle was made by FN for browning in 1963.
Japan
Marked on the barrel where it is made.
your browning safari bolt action was made in 1969.