Hello, I purchased a Tikka T3 HB SS varmint rifle about 2 months ago, however upon looking at the barrel a few nights ago, I noticed that there is some rust beginning, is this normal for this gun being so new?, this is a range gun and has never seen the outdoors yet, and it is stored in a low humidity area, I was going to put some gun oil on the barrel but was wondering if I should treat the rust first.