BARREL

*14. Sand the feed ramp. The goal is to reduce or remove ridges and pits, but no metal after that. Roll up a piece of 400 grit sandpaper, or wrap a piece around the end of an eraser and work the sandpaper up and down the ramp, the way the bullet moves. You can over do this, especially in the middle, so make sure not to alter the shape of the feedramp. If you want to do a real good job, go over it again with 600 grit sandpaper, or polish with a Dremel.

*15. Sand the chamber, the area inside the barrel just past the feed ramp. I find it easiest if you roll up some sandpaper. put it inside the chamber and then allow it to unwind to the size of the chamber. Sand by sliding it in and out, not rotating. (polish in the direction of movement)

16. Sand inside of the lug. This time use rotation to polish since that is the direction of movement. Be careful not to change the shape.

17. Use a wooden dowel to push a few strands of a stainless steel pot scrubber (see pic below) through the barrel from the feedramp side. Repeat a few times. The wad of pot scrubber should fit tight so it will smooth the machining marks inside the barrel.

18. Sand the entire outer surface of the barrel, except stay away from the muzzle opening.