You are one brave guy! I'd never, ever try a stunt like that in my wife's stove. I once used a bottle brush on a long handle to clean black powder residue out of a set of Lefever barrels. In her kitchen sink; you should've seen the black stuff all over the ceiling, walls and everywhere else!...Geo
"Brave" might be a kind description. Thirty years ago, most of us did not have the kind of handle on the dangers of lead vapors that we do now. I would hesitate to try this experiment in a oven that is used to cook food, now, myself. Of course, those of us with non-shooting spouses are generally the beneficiaries of a certain level of tolerance.
A bottle brush? In a sink? What in the world were you thinking?