Many years ago, I purchased a cannalure tool to try in various reloading experiments. I use it 100% on all of the .308in. jacketed bullets for the 30 Luger brass. Once seated, on a separate station of my press, I have a Lee Factory Crimp die(#90175) that applies a collet crimp into the cannalure. I also use this type of crimping die for 38-40 brass(bottleneck brass) and it applies a uniform, thin 360 degree crimp. I don't use the Lee FCD for any other brass, just the bottleneck brass.
My press toolhead has a variety of brands of dies, as I kept experimenting to find out what works the best for me in my press. I believe that I have found the formula.
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