Originally Posted by
Chubbs103
Chore boy copper pads. Make sure they are all copper, not coated. Snip a couple of strands and wrap them around a bore brush (preferably one that is worn or slightly undersized). This is a similar concept to the Lewis Lead Remover and works quite well.
950 isn't very fast. Do you know the hardness? My concern would be proper fit more than hardness at those speeds.
Edited to add:
The chore boy method has always worked well enough that I do not use harsh chemicals for lead. Ever. The stuff just pulls right out. Be careful what you get on the bluing of your M29.