I have a new Savage 12fv in .223, I fired about 7 monarch .223s (not 5.56) through her, and after cleaning it, I keep seeing what looks like oxidized copper coming through on the patches. I am using Hoppes #9, a wire bore brush for the first couple of strokes, and I have used at least 7 patches, and they are just as dirty as the first!...Is this normal? My Mark 2 has MANY more rounds through it, and I only had to use the wire bore brush, and 2 patches for it until the patches would exit the barrel cleanly.