For the Love of God, GI Joe and John Wayne.... cleaning and abrasive cleaners

[Dawhit]

Been using a concoction of 2/1 Hoppes/ Free All, works pretty well on carbon, disclaimer, I brush a lot and soak for several days when possible.
All pictures are on the same groove just in front of the end of the chamber. Barrel is a 6 PPC Bartlein with 8-900 shots.
Barrel after a thorough cleaning with solvents and Rem 40 X before putting up for winter.

After 28 shots recently, couple wet patches of H/FA, then 25 passes with a bronze brush immediately after firing the last shot at the range, then a 24hr soak.

Wet patches of Montana Extreme Copper Killer followed by 25 brush strokes and a 15 minute soak.

Decided to try a 24hr soak with the Copper Killer after brushing, same regimen as before but 24hr soak.

Finally did another Hoppes/Free All brush and 24hr soak.

The last session didn’t pull much more carbon but the first patch was definitely dirty. Going to try this routine for this upcoming season. The Copper Killer seems to do a better job than BT Eliminator but the Eliminator is old. Montana Extreme Copper Killer will knock your socks off when you open it!

 

[tekmann2377]

If you really want to remove copper chemically (instead of with abrasives) the most effective remover I have found is Barnes CR-10. I have a tried a few other products, including Sweets 7.62, and it by far works the fastest and most thoroughly. It smells horrible, and shouldn't be left in the bore long term, but it will strip every last bit of copper out of the bore. It also seems to dissolve carbon to some degree as well, although it is not advertised to do so.