I had the same problem! You can send it to Benelli or you can put the tube in a padded vice clamp it down and go for it if the nut gets to rounded use channel locks or vice grips! what do you think a gun smith would do?If the cosmetic damage is to much to bear clamp the reciever in the vice and remove tube and all and replace it with stainless steel which I highly rcomend anyway!Forget the heat they use loctite in engines which get plenty hot in some areas and the glue doesn't give up!Also be carefull how you clamp the tube you can dent it which will hamper the plunger and springs function!
