Carbon Ring

[garywfisher]

Does anyone on the forum have a picture of a carbon ring as seen through a bores cope that you will share? I have a bore scope but don't know what the carbon ring is supposed to look like. Thanks.

 

[lpreddick]

sorry i don't have a photo but i use my hawkeye every time i clean a gun and will describe the carbon ring as a very dull dark "ring" at the end of the neck portion of the chamber, just before you go into the bore. the leading edge can be slightly irregular and the length is equivalent to the difference between the chamber length and the length of the cartridge case. if you get at it early you can get if out completely, but if one is established there seems to be a stain left even after removing the carbon material. spinning a stiff nylon brush with a little jb will get the stuff out. good luck.

 

[Gun Man Dan]

Mine needs a real good cleaning.

 

[Chaotik]

A couple of examples:

 

[jelenko]

A couple of examples:

And, it's at the beginning of the throat, not the end of the chamber.

 

[rebs]

sorry i don't have a photo but i use my hawkeye every time i clean a gun and will describe the carbon ring as a very dull dark "ring" at the end of the neck portion of the chamber, just before you go into the bore. the leading edge can be slightly irregular and the length is equivalent to the difference between the chamber length and the length of the cartridge case. if you get at it early you can get if out completely, but if one is established there seems to be a stain left even after removing the carbon material. spinning a stiff nylon brush with a little jb will get the stuff out. good luck.

could you tell more about using a spinning brush on a carbon ring

 

[Dolomite]

It’s not very clear but this is the carbon ring in my barrel. Wrap a patch around a brush that is 1-2x larger than your caliber and use JB or thorroclean. Spin about 20-30x and the carbon ring will be vanish. Soaking a patch in C4 and leave sitting on the carbon ring will also work but let it sit for about 20 min wet.