Hudge,
This could be the excuse you need to get a bore scope.
Here' the one I picked up off Amazon, $50.00:
https://www.amazon.com/gp/product/B07XDYN296/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1Teslong Rifle Borescope, Short Focus Gun Barrel Camera with Side-View Mirror.195 inches Caliber for All Barrel Inspection, Compatibale with Android, Mac, Windows, Linux, 1.0 Megapixel