I am in the process of sorting and cleaning about 6K spent cases.  I have collected them over the years.

I have run across all kinds of headstamps.

I have a question.  If it is a stupid question then please forgive my ignorance.

Is PMP the same as PMC?  I have both PMP and PMC.  I am familiar with PMC but not PMP.

Also, I have separated out the FC and PMC ammo due to what I have been told is a thin web problem.  I have several different FC headstamps, all of them several years old.  Are there any good FC ammo for reloading close to mil specs?  I have about 500 cases and don't want to toss them unless I have to.

PMP is south africa.
PMC is south korean, not the same.
PMC is good brass, unlike questionable FC.
PMC does have a primer crimp.
'Borg

Check out Link. Good headstamp info.