CDH wrote:Extend your depriming pin more. They can protrude quite far before the stem begins to hit the case inside. There is no reason to keep the pin only sticking out 'just enough'.
I have had a couple pop the center out of the primer and leave the sides in the primer hole, but maybe one in 2 hundred and they looked like they had a little corrosion starting in the seam between the primer and case.
I have extended it some and it helps but I'm cautious about having too much pin sticking out because you run the risk of bending or breaking it.
Which brand of die is it? The lee dies have the decapping pin in a collet mechanism that will pop out if too much pressure is exerted on the decapper, so that it's very unlikely that the decapping pin will break or bend from a stubborn primer or accidental use on a Berdan primer. If it does pop out, it can be easily reset without damage to the die or pin.
I'm using RCBS dies and a Dillon 650. I've also re-seated the old primer but I noticed the brass colored primer in with all the silvers. Totally lucked out. Normally I would have found it shooting a critical IDPA stage.
I just found this thread and remembered having a problem decapping some .380 Auto cases recently.
Not remembering for sure which head stamp was causing the problem for me but I was thinking it was PPU. I headed off to the reloading shop but found no PPU brass in my range stock. However, I noticed 3 ea. S&B .40 S&W cases with red sealant on the primers. To my surprise, the decapping pin "puckered" all 3 of the primers and one primer actually set back the decapping pin in my Lee die.
I also found 10 ea. S&B .380 Auto cases with red sealant on the primers. Only one of these "puckered" the primer while decapping.
So, I'm thinking it is very possible that the PPU cases had a sealant on the primers. Possibly a clear sealant which was not very visible.
Extending the pin a bit farther should solve your problem. I don't see much chance of bending the pin since it is being stabilized by the case web as it passes through the flash hole .
"You cannot depend on your eyes when your imagination is out of focus." - Mark Twain
I carry always not because I go places trouble is likely, but because trouble has a habit of not staying in its assigned zone.
I had almost the opposite problem with my 9mm PPU cases. The old primers came out pretty easily, but the new ones took quite a bit of force to seat. I've found (with Winchester SPPs anyway) that Federal, PMC and Remington are real easy to reprime, while Winchester, NATO and PPU are the hardest. This is with my Lee Auto-Prime, and priming 1000 cases in one day makes for sore fingers.
"I don't know how that would ever be useful, but I want two!"
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