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The RCBS roll crimp is the best way to go. I pitched my LFCD because it distorted my cast bullets. My 38-55's are quite finicky about bullets and the distorted LF crimp is just one more step in the process in addition to being detrimental to accuracy. LFCD work very well with jacketed bullets but not well with any cast bullet. It is extra work, is not needed, and harmful to accuracy. So, to me it was worthless for my uses. YMMV