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primer re-seat

Loading 9mm, everything pretty much goes as intended except on occasion the spent primer doesn't fall out. When that case gets to station 2 on the up stroke I can feel the spent primer re-seat. I have adjusted the primer punch pin out really farther than what I'll call normal but still it doesn't fall free. So...is there some magic you can share with me?
Thanks in advance
John

Just curious, are you having this problem with all brass or just a specific brand?  I ask because I have the same problem but it only occurs on brass with PPU on the head stamp.

It sounds like the spent primer is sticking to the end of the decapping pin. Take medium rgit sandpaper and round off any square edges so the spent primer doesn't stick onto the end of the pin.

I don't think I have any brass with that head stamp. It seems to do it to all that I have though. I think the Dillon reply will do it.
Thanks again
John

PPU is Privi Partizan brass, made in Serbia. We do receive periodic reports of this issue with this brass, as well as S&B and Fiocchi.

I use a lot of range brass and PPU is the only stuff I have trouble with.  It dimples out the primer but doesn't punch it out.  Not all of them but I'd say better than half. I can take the dimpled-out case and use a manual punch and knock it out. I don't know if PPU uses some kind of glue/sealer but they're really in there.  I don't want to extend the punch pin any further out because I think you run the risk of bending it. 

The punch pin was too blunt, like Dillon said. However medium grit sandpaper wouldn't work, I had to use a stone and now no problems.
Thanks guys
John

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