Beware of scammers.

Thanks for the response. I knew I would get some help here.

Hello, I recently acquired a 16 ga. 870 with a plain 28" modified barrel. The barrel markings on the left side are S B 60. I can't make that combination of letters work with the commonly published aging chart. The serial number is S012529W. This is a Remington barrel, but I have no way of knowing if ...