l would bore scope it especially looking in throat area. then no matter what it looked like id 1 patch with butches and 10 or 20 strokes with a bronze brush then a few patches with butches to clean all the gook the brush has loosened. then 10 strokes or so with some jb on a patch/jag then butches/patches and look again. i dont always clean this way but on a used gun i just got chances are good they havent been cleaned to well if at all and i wanna see how much i can get out.Bought a used rifle. Used Butche’s to run patches through bore . 3 patched came out black- then 5 patches came out with bright blue (copper ) then after a few more patches they came out clean. What would be next step to assure bore was clean? Rifle is a Remington .308 .
Using a ivy cleaning rod- no brass jagJust wondering are you using a brass jag?
