I get the same result in both Prvi & PMP brass, so I don't think its the cases.
After reading all the replies, I rather think the problem might be in my prosess
Boss Hoss, will you be so kind as to elaborate more on the process of lubing the cases. I use spray-on lube, but just sprayed on until I thought it was enough and pressed away..... In another thread I enquired about dents on case shoulders, and again the answer was the incorrect use of lube..
Seems than there's a lot more to lubing cases than I thought!
BTW, while trying to "bump the shoulder" on my .270Win to get them to 0.002' under "chamber size", I managed to get a case stuck in the Hornady die I was using, and all but destroyed the die when trying to remove it. - Let me guess.. the reason is the case wasn't correctly lubed...... ouch!
I got I new Lee F/L die since then..... ignorance costs money in the beautiful world of reloading