Copper Crusher Pressure 28 5

Copper Crusher Pressure 28 5

To this day, most published chamber pressure MAP data for metallic cartridges is taken by the copper crusher method of measurement. The proper name for this type of measurement is CUP, or Copper Units of Pressure. Another, similar, method uses lead crusher pellets and the resulting pressure values are called quotLead Units of Pressure,quot or LUP.

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