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I'm making my first foray into wildcatting brass. I'm making .300 Blackout from LC 5.56 brass. This entails trimming about 1cm off the brass after initial forming. Is there a trick to doing this relatively quickly? I don't mind doing the trimming in two steps, getting the finish cut on my Lyman case trimmer, but it is not suitable for large stock removal. I've trimmed a few with a fine blade hobby saw, but what a PITA.