I know alot of people on here uses sweets. I have used it alot too. My gunsmith just told me that he uses " brake clean" from auto stores after using sweets to get out all the ammonia or it will etch the barrel under neath your oil you apply. I asked even if you go thru the barrel 5 times with new patches. He still is convinced that you can' t get out all ammonia. What do ya think about that statement?