Breech Plug Drill Bit Size?

[HawgHunter]

What size drill bit do you use to clean a TC Pro Hunter breech plug? I seem to get build up when using Blackhorn 209. I didn't check it when it was new and don't want to assume I'm using the right size.

How about the size for the Lehigh Gen II breech plug? I just order 4 replacements but I might as well make sure that I have the right size bit for cleaning out that stubborn build up inside the flash hole.

Thanks

 

[Lee 9]

The standard size is .125 I open mine up with a #21 drill and thread with a 10-32 tap and install a Lehigh vent liner.

 

[Anonymous]

1/8th bit for TC and Knight to get rid of the carbon in the flash channel.