I have a quantity of 5.56 tracers (pulled),. but before I went to extrenes like that,.. I have about 500 ea 556mm 62 gr pulled with the same compound,..
And for general info,.. I ran them thru the brass tumbler for 2 hours and all that happened is the shiny parts are shinier and the blackened parts are black,.. but drier.
I do have a sack of pecan shells and may crumble them and proceed in that direction on the pulled bullets,. the pecan shells are harder than the corncob media... will let ya know what happens,,