What your gun would be best at depends on what chokes the gun has. You can make about any gun ok for trap or skeet by picking the right shells. For sure your gun was built to hunt with and should work ok for all shooting sports if you are just shooting for fun and not trying to become the world champ. The Browning Citori is based on your gun.
You will have to contact Miroku to find out.
You will have to contact Miroku
Try Blue Book of Gun Values.
stirling miroku shotguns were manafactured by miroku for fuller firearms sydney Australia in the 1960s and 70s they were overlooked at the time but now are considered a good gun
No published sn data I know of
No published sn data.
If it was made for Browning you can tell by the serial number.
The letters NZ in the serial number indicate that your Miroku made Browning was made in the year 1991.
No way to tell from just the serial number.
YES
1500 au
I believe it was known as the "Black Shadow".