Whats the best thing you ever used to clean leading?

[Arenko]

The best thing I found to clean was a trainee. I’m not sure what he used, maybe Hoppes and a toothbrush?

 

[Cdog]

I rarely have to use it these days.

I've successfully cleaned some horribly leaded barrels using a combo of Kroil soaking and Copper Chore Boy.