Watching the Colonial gunsmith of williamsburg last night, the smith stated the breech plug should have at least 6 full threads which will end up being around 1/2" long.
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Watching the Colonial gunsmith of williamsburg last night, the smith stated the breech plug should have at least 6 full threads which will end up being around 1/2" long.
breeches and vent liners are two diff'rent things entirely. the breech plug can be as long as one wants - 1/2", 5/8", 3/4" - because it's that plug that seals the pipe's butt hole and will have an attached tang. vent liners are totally at the mercy of the barrel's chamber wall thickness, and that's where things can get dicey, and where you really need to know what yer doing in terms of liner threads, countersink, and just what size the pilot hole needs to be and where to drill it. it only takes 3 solid threads for a touch hole liner, however most will be 4 or 5.
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