I have cleaned this rifle (Traditions .54 caliber Deerhunter) the same as any other rifle I have owned and never had this problem before. I can't seem to get it to go away. The cleaning patches keep coming out with a brownish color on them. The sabots I have been using are orange in color. Could they be leaving a plastic residue behind causing this coloration to be on the patches? When I shine a light down the bore it looks shiny and no sign of rust. I just can't believe it to be rust, but as a precaution I am soaking the barrel in EVAPO-RUST. Could the color be coming from the orange plastic sabots?