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Hard carbon removing, help!

Nope - hard carbon isn't quite diamond, but it's a heavily cross-linked very large molecule and isn't soluble; you have to break it down mechanically or chemically. Unfortunately anything that will chemically degrade hard carbon will also do a number on barrel steel.

The citrid acid can sort some corrosive effect on the barrel?
 
I keep it simple. I let a Kroil soaked patch soak in the throat over night. Then take a bronze brush one size over and twirl it in the throat area and it will break up the harden rings (neck and throat) up into very small pieces. Flush out with Bore Tech CR 4 carbon remover. Then patch out throat area with JB bore paste. In about 15 minutes, the bore will be perfectly clean and ready for first shot fouling.

I inspected the throat and bore with a bore scope prior to, during and after thorough cleaning.

Easy peasy!

DJ
 
I keep it simple. I let a Kroil soaked patch soak in the throat over night. Then take a bronze brush one size over and twirl it in the throat area and it will break up the harden rings (neck and throat) up into very small pieces. Flush out with Bore Tech CR 4 carbon remover. Then patch out throat area with JB bore paste. In about 15 minutes, the bore will be perfectly clean and ready for first shot fouling.

I inspected the throat and bore with a bore scope prior to, during and after thorough cleaning.

Easy peasy!

DJ
What would be one size over for the 6.5?
270, 284, 308,...?
 
Rem Bore Cleaner already has a abrasive in it. Wrap a patch around a worn brush that is sticking out the end of the barrel. Put some cleaner on it (it is grey in color) and start by pulling it through the barrel. About 10 strokes and copper and carbon gone. Caution to shake the bottle well. It has a steel ball in it to help mix up the abrasive with the oil.
 
Rem Bore Cleaner already has a abrasive in it. Wrap a patch around a worn brush that is sticking out the end of the barrel. Put some cleaner on it (it is grey in color) and start by pulling it through the barrel. About 10 strokes and copper and carbon gone. Caution to shake the bottle well. It has a steel ball in it to help mix up the abrasive with the oil.

Thanks for the advice.
Do you know if it contains ammonia?
 
I’ve got some coming from Amazon. I hope it’s the answer to cleaning the last black carbon streaks left after patch-out and Accelerator.
I've used both Isso and JB, but find this ( fritz) work the best. Also being green colored it is easy to see when it comes to clean up. Much easier to see some left behind compared to the other two. JMO
 

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