I have an old Knight MK-85 that has a pretty small flash hole. A 1/8" bit will not fit to clean it. Would I do more harm than good to drill it to 1/8"? I don't get misfires with BH209, but I want to be able to keep the hole clean.

When drilling the breach plug flash hole, any special tips? I would be concerned about breaking off that small bit when using my drill press.

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dogzapper

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