Originally Posted by
chainsaw
Yep, that Boretech is great in taking out copper and carbon fouling. But remember its pretty aggressive solvent so dont leave it in barrel too long, my rule of thumb is 10 -20 mins max. And put several dry patches thru after to get it out, then best to neutralise with Hoppes, followed by more dry patches. Bronze brush is your best friend when it comes to carbon removal, but make sure you've dry patched out any Boretech or Hoppes before running the bronze brush thru. You should also consider using a nylon brush with the Boretech to get it into the grooves of the lanz.