How about some tips you may have?

[Billy Boy]

Files are actually manual milling machines. Brush them clean after every 2-3 strokes. Chalk them, it will prevent a lot of galling, gouges, and scratches that you will spend a lot of time later taking care of. Never apply pressure on the back stroke. Have files for aluminum, brass, steel and cast iron. Don’t mix them up. Old files can be moved over to the wood working area. Still need to brush them before storage, the wood always attracts moisture.
When going for a flat profile, change where you file from, at least 3 different positions. Always make a handle for every file, it helps control.

 

[BJHabermehl]

When soldering any thing to a gun barrel remember to oil the inside of the barrel after your done. The heat from soldering will often evaporate the protective film of oil in the bore. Promoting rust later. BJH