Hey guys, I ran some sit in bore cleaner through my ak (bottle said it's corrosive), but i've also shot corrosive 7n6 since then so im not sure which it is. I cleaned it very well after both though, as always, and i've never had a problem with rust before. When i shine a flashligt down it, the throat is a matte color, and my dad's 47 doesn't look like that. When i shine a light down the end of the barrel, I can see red/orange stuff in the grooves. However, when i shine it from the bottom, the barrel is still shiny like it always has been. I've been soaking it and scrubbing with wd-40 for a good hour and no rust colored stuff is coming out. Is this rust?