I purchased a Springfield 1863 from an estate. It is set up for NSSA completion shooting as it has a re-lined barrel, marked front site and epoxy bedded barrel channel in original stock. Unfortunately the previous individual has passed and the musket was left in his garage or basement so I had to unfortunately take 0000 steel wool to it all in order to remove all the surface rust and unfortunately all the patina as well. Here's my question, should Nitre Blue the lock plate and trigger guard and butt plate along with the barrel bands? Or is there another way to prevent the rust from returning? The barrel and breech still retain enough patina to leave as is. Are there rules in the NSSA for appearance finishes? Thanks in advance.