I have a LOT of 9mm bullets that were PC'd but the powdercoating is failing and leaving heavy leading in the barrel. No the bullets are not undersized. They are +.002" over the slug diameter, nor are they swaged down undersized leaving the brass, and the PC is properly cured. Several of us used the same PC paint and ALL of us are having the same issues with it.
I wondered if anyone has ever used HT over the top of PC and if it would solve this problem? I'll likely give it a try unless someone knows a valid reason why it won't work?