I've had trouble with 44 magnum and 44 special remington nickel plated brass too. It doesn't split but it really messes up my sizing die. No matter how clean I get the brass, it leaves some nickel in the die that scratches the regular brass when I go back to use my dies. So I have a separate sizing die I use for only plated cases. But I too only use the plated stuff for carry and long term storage. The 210 silvertips and nickel brass stay clean a long time.

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