I bought a new Traditions .50 cal Pennsylvania Long rifle. I bought it NIB. Took it out on Sunday two weeks ago and she shot flawlessly.I really enjoyed shooting her and I am "hooked"...again.Shooting 3F black-powder. Anyway I knew enough that I had to clean her right away, so I swabbed the bore with "Moose Milk" from Dixie Gun-works while at the range. Then I got her home and ran Moose Milk soaked patches down her bore until they came out clean (or so I thought)then I hung her on her hooks in my den. Life is good, happy as a lark. Until today. I got to looking at her and noticed a white "fungus" forming around the nipple area, so I took her down and ran another "Moose Milk" soaked patch down her. OMG! I could barley get the patch down her and when I pulled the patch out it was DARK brown. I panicked and started soaking patches with Moose Milk and running them through her. The first 4-5 patches were very brown then they started to lighted in color some. All in all I ran at least 20 patches down her and they came out what looks clean in the end. I had since bought some T/C Bore Butter and I ran a few dry patches down her bore, then I saturated a clean patch with the T/C Bore Butter and ran that in and out a few times. My question is. Do you think I have ruined my bore? The thought of this almost makes me sick.I love this muzzle loader. Please advise. Thanks.