my rusty duck solvent..think thats the name..is ether and alcohol...i can get you the direct ingredients if you wish.....they printed them on the label i think i remember.......seems like good stuff....i was almost tempted to not use the traditional water when i used it the first time......maybe try that bore foam stuff? seen it in cabelas or walmart.....guess you fill the bore with the foam solvent.....let it sit a half an hour and run a few dry patches through it and your done......dont know how it works but thats the directions from what i got..........i dont know if a chamber type thing like your talking would be a good idea..im with cayugad....i dont like the idea of my barrels sitting in chemicals.....or even plain water.....only takes 10-20 mins to clean a gun.....ill spare the time and get it done as soon as i get home...i hate doing it once in a while......but i like to know my bore isnt going to rust......seen to many guns rusted to pieces from guys not believing BP is corrosive.....my buddy shot his flintlock......told him to make sure it got cleaned.....offered to do it for him since he never did it....and id show him how..."nah my grandfather will show me"..it will be fine in the dehumidifier in the gun safe.....no it wont clean it now! ill show you!.....i will i will.....few days later.....Whys my gun all rusted!?!?! i cleaned it like a normal gun today...and the rust wont come out!?!