I have a Green mountain 38-55 barrel that I would like to chamber for the longer brass. The barrel is a 1 in 12 twist with .375 bore and .368 groove diameter. Can anyone tell me what I want for a reamer ?
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I have a Green mountain 38-55 barrel that I would like to chamber for the longer brass. The barrel is a 1 in 12 twist with .375 bore and .368 groove diameter. Can anyone tell me what I want for a reamer ?