So yuns don't think I'm crazy....Google Ed's red bore cleaner for yuns that don't Google here is the recipe
1-quart kerosene
1-quart mineral spirits
1-quart acetone
1-quart type III automatic transmission fluid

Won't harm wood stock finishes and cleans a barrel very well and also works as a lubricant when j make it i store in pint or quart Mason jars
DISCLAIMER I don't believe I'd smoke while mixing it up or while using it but if you do please video it

And if you make a batch report back on your findings as to how well you think it works

Ed’s red stinks to high heaven. LOL If you’re gonna go that route just drop the metal in a vat of gas, hit it with a water hose and then an air compressor. Worked on M4s forever.

Slip 2000 cleaner works better on carbon than just about anything I’ve seen. They’ve got different formulations, good lubes, etc. The cleaner is citrus based, so it doesn’t stink up the world, but it needs oil behind it. You can soak an AR bolt or gas shotgun piston in slip 200 for 10min, and 99% of the cooked on carbon will wipe off with a paper towel. ProTec is good, too. There’s a myriad of good bore cleaners. Synthetic refer truck oil is some of the slickest, non smelly, non toxic, cold/hot proof stuff around if you can find some.