I have a problem with severe copper fouling in my 12FV .204 Ruger and finally called Tubbs about the Final Finish system. Based on number of rounds fired, they said I needed to use the TMS instead. Fire 7-10 rounds and then 3 about every 350-400 rounds.

I have less than 2,000 rounds thru the barrel. I can clean the barrel and after 25-30 rounds, all shots keyhole. This happens with reloads and factory. Gun has been sent back to Savage but not help there.
After the last test, with all copper removed, I fired about 30 rounds before it started keyholing. In cleaning the barrel, I was able to quickly remove carbon fouling. I then used BoreTeck Copper and it opened up a copper mine again. Still trying to get the copper out.

I checked their website again and based on what I see, I think I should be using the Final Finsh instead.

Comments?

Lago