Getting back to removing cerakote... I have found it takes little more than a damp paper towel.
LOL Going to go out on a limb and say you have no cerakoted rifles.
That would be incorrect. I have rifles done with cerakote and other coatings and in my direct experience cerakote is a joke. I have seen a rifle with cerakote applied by a well-known gunsmith with much experience and a good reputation fail badly. On a single trip on a Kodiak bear hunt the cerakote wore through on the barrel just from riding in a rubber raft with the barrel resting on a tube... i have seen other failures as well.