Educate me on this infamous thing called a Carbon Ring.

[Tanner]

I have no dog in the fight as I like to observe objectivity, but it is interesting that something that can be observed clearly with a bore scope causes such a huge amount of arguing and wiener measuring.

So many factors at play in carbon rings and if or when they ever cause an issue, that it seems like it would make sense to ignore them if they aren’t giving you problems, and address them if they do.

 

[slm9s]

I shoot dozens of rifles and rarely clean them. I'd never had a carbon ring cause a problem until 1.5 years ago. The rifle is a custom 8 twist 7saum on a 700, I shoot 197s with RL26 (common theme?). It shot AMAZING until rounds started to get hard to chamber and then wouldn't chamber at all. Borescope showed a large carbon ring. I've tried several times to get the ring out, but several products have been unsuccessful (including electric drills being used!). I might have to try the hand-turned throater.

 

[Formidilosus]

An actual HELPFUL response would be to outline your theories on what can cause it (or not, can’t tell if you even think it’s real). Instead you just brag about rounds down range and problems you don’t have.

COOL COOL COOL

What? I have stated repeatedly for years on threads what causes it.

Minimal spec chambers
Short throats
Minimally resized cases
Excessive trimming of cases
Loading bullets into, or close to lands
Loading to “pressure signs” (aka hot)
Etc, etc.


Just because you your rifle/barrel came from a “known” shop, or is supposed to be a good prefit- does not mean it doesn’t have all or some of those issues. If you are having problems- you can BS yourself that “it just happens, or go through that list above and find the cause(s).