Thread: CIP vs SAAMI

Originally Posted by Shearer

They definitely do differ. That was why I asked.
In the 223rem CIP is 7000psi higher then SAAMI, and in the 308win CIP is 2000psi lower???

CIP is not measured in PSI but in M Pa or Bar so they have been converted. The US is the only country still using PSI. There are good descriptions on the differences on the net. For many years pressures were measured in Copper Units of Pressure formally called PSI (pounds force per square inch often abbreviated). these are different as well with no simple conversion.
GPM.