Just to clarify, I use Parcolubrite 2 phosphating on the brackets (what Long Branch used) and they are then painted with this: Technical Info -> Zero-Rust Canada : SMJ Products & Services for High Performance Barrier Coat
I've done this to a No4 action that was then rebarreled and the smith who did it was very impressed with how the finish survived the barreling vise and wrench undamaged.
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