I have a new RTI Prophet in .22. I accidently fired it with the bolt not fully forward. It popped next to my ear and was loud. Now, although it still shoots accurately, it seems to be more noisy next to my head. I was wondering if I may have blown out the breach seal. The schematic says a #7 o-ring goes there. Has anyone had experience with this? I was wondering if pulling the barrel would be needed to repair.