Lyman Fine Powdered Mica is used to prolong case life and makes resizing easier. It is used to lubricate the interior of bottleneck cases but can be used as a general lubricant where dry lubricant is used. This is the same mica that is shipped with the Lyman Case Neck Dipper (256-493)
Function: Used to lubricate case necks before sizing Size: 1/10 oz Material: Mica Powder Notes: Not used to lubricate the outside of the cartridge case
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