I use brake cleaner or carb cleaner (spray). Its cheap, works good as final cleaner, particularly areas around breech, plug and any threaded area. Run couple dry patches down barrel, light lube your bolt and breech and your ready to go blow off more smoke.

My .02 - I would never - and - why use acetone on any gun. There are so many good solvents out there for specific use on smoke poles. Besides the stuff WILL soften plastic,varnish etc...