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. Auto 5's with recoil pads (other than Mag 12's) poly-chokes and compensators will reduce value. Recommend taking it to a gun shop for appraisal.
About $550 for plain barrel, $850 for vent rib. This is for EXCELLENT condition, lesser condition less $$$.
if it is indeed in excellent condition the value would be between 550-650 dollars.
If your browning auto-5 is in excellent condition(85-90%)original finish?I would assign a value of 550-650 dollars.
What are the other markings on the barrel? Does the serial number on the bottom of the barrel match the one on the reciever? sales@countrygunsmith.net
Check on the barrel flats
Browning.com has sn data under customer service.
That would be a Model 732 2.5" barrel, Excellent condition $185-195 - add $25 for 4" barrel.
200-500 USD
$150 - $400 depending on condition and year made (barrel markings determine the period when the barrel was made)
Depends on the condition of the gun. Original stock, forearm and barrel Barrel length and choke size. Most important, was it made in Belgium Average condition $350-$500 Excellent condition, Belgium made, original componets $850-$1,000. If you still have the box add $500 to $800
With all original parts and 95% original finish, plain barrel = $625; matte rib = $825; vent rib = $950.
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..