I was in a local gunshop today and just before closing (for the Christmas break) a guy came in and asked if they could fix his gun, it was firing the bottom barrel now and again when he closed it.
The gunsmith was off and his father who was running the shop told him to drop it in after the break, I was chomping at the bit but I thought it'd be a bit cheeky to offer to take the job on.
I know this isn't any help to you but I thought it may not be such an unusual problem. I'm beginning to regret not saying anything now, I'm intrigued as to what causes this potentially dangerous problem.
