I have a few barrels that just keep shooting well, clean them every six months or so. I also have a barrel that is like a laser for around 200 shots then it gets weird quickly, a quick clean and its back on form with one or two pellets, I did have a trick told me and that was to shoot 2 pellets backwards at the end of a session as this would clean the barrel, I have tried this in my TX and as yet its not needed a clean, it might be 'Hocuspocus' but I wont know until it does lose its accuracy....
Cleaning it will not lose you any accuracy surely improve it
Chris
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