I had this happen to a mossberg I traded for without checking the tube. Of course it was a flush mounted tube and i tried light heat and soaking with liquid wrench. All I had was the mossberg type wrench and it doesnt grip very well. Well the tube won the battle. I called mossberg and explained it was stuck. I sent it to them and they removed the tube, installed a new one, and even replaced the front bead I had heated and melted. All I paid for was shipping it to them. Check with a gunsmith and see what they would charge. If a gun smith does any damage you may have a legal case on your hands unless they would stand by their work. I myself would call browning and explain the situation. It may be cheaper to send it to browning and I am sure they are set up to deal with problems like these. If the choke is damaged taking it out im sure browning would replace it like mossberg did if it is a browning tube. Some manufacturers are good for taking care of their customers as I found out. Good Luck!!!