It would best if you could trade or sell and get another used one. Browning barrels are notoriously extremely difficult to remove. A rebarreling and reblueing job can run ya around 400 dollars when its said and done.
If it was a 700, or 70, it would be easy to find a barrel someone removed new cause they are customized most often. So all a smith would have to do is set your headspace and touch up. But I jsut don't know too many people customizing a A-Bolt.
You can try to go to
www.gunbroker.com and others and look for a take off barrel from a A-Bolt would be your best choice.