| Joined: | Fri Apr 6th, 2012 |
| Location: | Pennsylvania USA |
| Posts: | 187 |
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Has it been NEAR salt water Ed?
If so it could be expansive corrosion inside the collar. Aluminium is very prone to salt air corrosion.
I would try tapping the collar gently and trying to turn the collar with the friction lock fully loosened. Does the collar remove? I think some do some don't.
As I mentioned in an earlier reply, I tried using a strap wrench to turn the barrel after fully releasing the friction lock screw. I could move it slightly, but not to the extent it should move. It was never exposed (at least by me) to a corrosive atmosphere. Maybe I'll try tapping on the screw in the open position to see if it's just stuck somehow.