My first experience with Citric Acid, Dawn and hot water was amazing! I have since heard caveats regarding Citric acid removing the zinc from brass, leaving it tinted pink and weakened, indicating necessary short cleaning times...maybe 1 hour max. (?)
I have also heard that Citric Acid "passivates" brass, retarding corrosion/darkening for a long while.
It seems to me that adding a layer wax of any type, no matter how light on brass would act as a lubricant, increasing pressure against bolt faces during firing, similar to lightly oiling cartridges for proof testing.
Somebody educate me, please!