picking up grit
Point taken on excessive cleaning... I'm kinda' mostly a swab cleaner, leaving the bronze alone unless really needed. I just zeroed a new Savage 116 Weather Warrior in 30-06, and a Marlin 336 in 30-30. Sure don't want to ruin the good parts!
As to brass picking up grit... I worry about that with vinyl coated steel rods or even graphite, since the resin holding the graphite together is relatively soft and could, itself pick up grit.
Go figger... I guess I need to 'Air' rod!