Value is too difficult to be accurate without seeing the gun. Condition which includes the amount of original finish and original configuration will determine value. Recommend taking it to a gun shop for appraisal.
You can tell if you have a Browning Gold Medallion Boss Rifle by looking at the stamp on the barrel. It lists the model of the rifle as well as its serial number.
Browning.com has a sn function under customer service.
The only way to know is to shoot both.
No but there is a octagon barrel
You can tell if you have a Browning Gold Medallion 7mm Mag Bos rifle by checking the stamp on the side of the barrel. It will list the model, serial number, and where it was manufactured.
Without a better description, 300-900
Need to know the finsih, condition, accessories, box, papers, etc..
Octagan
Although both are interchangeable, a true Sweet 16 barrel will have three holes drilled through the barrel band. This was one of the ways Browning lightened the barrel. The rib will also be a smidge thinner than on a regular barrel.
You will have to ask Browning.
You need a trained Browning gunsmith
Contact Browning.