JDinFbg
Member
I completed the next step in my work to clean up and seal the bore of my rifle. I shot the 50-bullet series in the Tubb's Final Finish kit, cleaning the rifle in the field using Bore Tech Eliminator after each grit classification as per Tubb's instructions. After getting home, I did a final clean using Bore Tech CU+2. For the cleanings in the field and at home, I still seemed to get a fair amount of copper out. I'm not sure if the Tubb's bullets themselves deposited some copper or if the scrubbing action of the abrasive bullets released some copper that had been embedded in the bore. Looking at the bore with my borescope, it appears that the Tubb's Final Finish did clean up some marks in the bore. The attached file shows before Tubb's (BT) and after Tubb's (AT) pictures at the same points in the bore. I used tape on the borescope flex probe to mark the location of the before pictures so I could get to the same point in the barrel for the after pictures, although it's difficult to assure I reached the exact same spot. However, in places I had seen some transverse marks in the rifling before firing the Tubb's bullets, I could find no such transverse marks afterwards. The Tubb's bullets did not remove much of the pitting (and I didn't expect then to), it appears that some of the pitting now looks a little more subdued and a little less pronounced. My next step will be to acquire and apply the JTI Bore Shield I noted in post #18 of this thread to seal up some of the micro pits of the barrel.