Maybe it's my old eyes, but the one RC shell appeared to have a real deep RC - maybe a 1/2". I could be wrong. I realize the depth can be controlled, I've roll crimped for years. It's been commented before on this forum that deep RCs raise the pressure. I don't know - was just stating something I had read before. Has anyone sent shells in to be tested with the only difference between them, the depth of a RC ? All mine are around the 1/8" roll over. I also think, for the money, the one from Precision Reloading works very well. Round or flat roll overs - both were used back in the day and one could order the style he wanted. So please don't think only the round roll over is historically correct.
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Paul Harm
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