I bought a jug of Slip2000 choke tube cleaner and was amazed at how easy it made cleaning choke tubes. Just drop them in the solution, let them soak for a bit and wipe off with a rag, minor brushing of the inside of the tube, and they look like new. Not cheap though, about $18 for a 15 Oz bottle at Amazon.
_________________________
Socialism is almost the worst.