Browning O/U shotguns are very collectable when in top condition. Values have a wide range due to so many variations and grades of the Superposed and other Browning Over/Unders. 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.
500 uSD
$250-500 depending on condition
600 on up to 1100
50-250 usd
100-10000 depending on specifics.If you have the standard grade Browning BAR in this caliber it will bring between 450-650 dollars if it is between 60%-90% original condition and has a good bore.
Impossible to do without pictures.
300 or so
The only Browning Model 725 I am aware of is a knife.
50-500 usd
About 400 USD.
The grade I Browning bl-22 is valued at between 150-295 dollars based on it having between 60%-90% of its original finish remaining,and a good bore.If you have the grade II(scroll engraved blue receiver,and deluxe high gloss wood) then the value would be 160-300 dollars.
Value of small browning 25 cal. 6 shot model 266180 fair to good condition