Agreed, take ownership immediately and without fail. Then deep clean, repeat, repeat if not clean yet again. It just looks properly dirty. Then if all else checks out, put some rounds through, it. The bore should be good then.
Agreed, take ownership immediately and without fail. Then deep clean, repeat, repeat if not clean yet again. It just looks properly dirty. Then if all else checks out, put some rounds through, it. The bore should be good then.