Any opinions on why my patches are this color using KG12?

[LRNut]

See photo below; I have been soaking my Savage Lapua in KG for an hour or two and then putting another wet patch down the bore. The patches are coming out a brown color, which I see on this rifle only. On my other rifles, KG12 comes out black (I first use KG1 carbon remover until the patch comes out clean) but then pretty quickly comes out clean but my other barrels are stainless and this is chrome-moly.

Opinions as to what is going on?

 

[Laelkhunter]

KG is water based. Any chance it could be rust after only an hour or two?

 

[SPitty]

Both of my Savage rifles do the same thing with wipe-out, and I think it is because the barrels are chrome-moly.

 

[Mikecr]

Looks like rust. I would stop doing that.

 

[lhsmith]

I use KG-12 and the directions state to Flush the KG-12 residue out the bore after running a patch/ brush through the bore 20 passes with KG-3. I use naptha instead of KG-3 to flush and I finish with a liberal coated patch with Marvel Mystery Oil down the bore. The KG-12 patches come out yellow once the first couple patches remove the carbon. Patch color comes out same regardless if Chrome Moly or Stn. Stl.