[Edmond , DCB shooting]

Hi, nickel cases cracking comes from hydrogen being trapped below nickel coating and escaping. I suggest using copper coated bullets, it does not wear out the barrel, is more practical than lead to handle and has no toxic fumes when shot. for the dies , if you use lead , I suggest using Dillon precision New Dimension dies, before to switch to copper coated bullets, I found really practical to " unclip " the internal part of dies and clean up lead without touching to critical dies adjustments.