sinclair
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Neck turning: Trying to turn full neck but seeing cutting high on shoulder (280 AI)
I'm new to neck turning and am using Sinclair 4000 toolset on once-fired and FL sized Nosler 280 AI brass. The problem I'm having is that on some of my cases I see cut marks high on the shoulder (junction of shoulder to sidewall), even when the cutter isn't cutting near right at the junction of...