No offense taken. You're 100% right. I did put the rifle up w/o giving it a good cleaning, which is bad on my part.
I gave it a thorough cleaning with Barnes copper solvent and used their instructions and cleaned till all patches came out clean. I then ran dry patches through it till they were dry, then oiled the barrel.
The gun wasn't wet when I put it up and my safe is sealed up pretty tight. I lined the doors with foam tape sealer and have an oversized dry rod in it (Although thinking about it now, I need to check and make sure it is still working).
So am I correct it was just my own negligence and there is most likely nothing wrong with the barrel (at least there wasn't when I locked it up).
Thanks for the responses guys.