Your Browning side by side shotgun which was made in the year 1977 will bring between 725-850 dollars in the condition that you describe.If your shotgun is the sporter model which had a longer lower tang,straight grip stock,and slimmed down beaver tail forearm.The price will range between 1,225-1,500 dollars.Both figures represent a original finish of between 90-95%.
A Browning A-500g shotgun in excellent condition is worth about 900 dollars.
Depends on the condition and accessories
100-700 USD depending on EXACT configuration, condition, box, accessories, papers.
The question can not be answered without a detailed description of all markings, finish, condition, box, papers, accessories, type of action, barrel length, sights, wood, etc..
About $450, depending on exact model, and exact condition.
300-500 USD
2-20 usd
50-650 usd
500 USD
100-1000 USD depending on condition, accessories, etc..
Value depends on condition, age, accessories, box, papers.
0-500 USD depending on condition and accessories.