What size drill bit for cva breech plug

[I beagle]

I know its been asked many times, and I did a search but didn't see anything, what is the size of drill bit you are to use to clean the carbon out of a cva breech plug? Thanks in advance! Darin

 

[deermanok]

1/8" should do it.

 

[I beagle]

I couldn't find mine a couple days ago, Idk what I did with it. Have to stop at menards on way home from work so I thought I'd pick one up! Thank you very much!

 

[GM54-120]

Regular plug is 3mm
BH209 plug is 1/8"

 

[I beagle]

Thank you, this was for the bh plug.