I've used Lewis Lead removers since the early '70s but have mostly drifted away from them. Tufts torn off solid copper dish scrubbing pads wrapped around a bronze bore brush are at least as effective and are quicker to use. In normal times it would be quicker to pick up Chore Boy pads than to wait on Brownell's. The pads being less expensive does not hurt. Take a magnet to be sure any pads you buy are not copper washed steel.

Fine bronze wool pads are great for lighter duty scrubbing. Most Ace Hardware Stores have them in the paint department. Brownells also has them as do yachting supply stores around marinas.