Does the sonic cleaner help with the lead or just the carbon?
It "help" with lead and works good enough if you not neglect or shoot FA.
It help to pre soak, use heat setting then run 15 -30 min or so to loosen then use bronze brushes (bell brush for blast chamber on mono core, I use cordless now.
) and small cheap metal rounded screwdriver to hit tight spots then run some more and keep flipping. 50/50 purple power & water($5 a gal) (or other ) Lead/dirt settle to the bottom of container and wipes up with paper towel, can use cleaner over and over. Always wet, no lead dust from blasting, no Toxic waste of the dip, safest way I find . If really bad, 2-3 times a year soda blast or dip but sonic clean first to get much off .
Mono cores are harder to sonic clean than baffles (no flipping end to end)
Here is crappy vid on how I do it, it has a TL and Octane in the vid, the Octane is the most easy to clean ever and shares the same mounts as the 9.http://www.youtube.com/watch?v=ZTrzpFWoz0k