Primer issue

[gspn]

Have you ever seen a sizing/decapper leave a primer like this? The primer wasn't fully punched out, which jammed my press, and it looks like the decapper tried to push through the primer, and actually pushed out the dent left by the firing pin.

PRIMER by s s, on Flickr

PRIMER-2 by s s, on Flickr


This happened only periodically, and only on one brand of brass (MXT). Some MXT brass worked fine, others did this and jammed my machine.

I made some adjustments to the die, and worked fine after that, but I've never run into this before. Anyone else seen it?

 

[CoalCrackerAl]

Yes from heavy crimped primers.

 

[Seedy Character]

I have had it happen. Adjusted deprime pin and kept going.

Very few times, didn't look at brass brand, but the result was the same.

 

[gspn]

Yes from heavy crimped primers.

Thanks. This was brass that got collected as I picked up my empties at the range. Learn something new every day.

 

[BBarn]

Sometimes a primer gets stuck on the de-priming pin and is pulled back into the case as the case is pulled from the de-capper/sizing die.

 

[mdi]

Yep, not uncommon. Pocket crimps, corrosion, misadjusted stem, and anvils sticking to pin and withdrawn back into the pocket. Readjust decapping stem and continue...

 

[Soonerpesek]

Sometimes a primer gets stuck on the de-priming pin and is pulled back into the case as the case is pulled from the de-capper/sizing die.

Yep, not uncommon. Pocket crimps, corrosion, misadjusted stem, and anvils sticking to pin and withdrawn back into the pocket. Readjust decapping stem and continue...

Had it happen many a time, until I sanded/ground/eased (whatever the correct term is for the all knowers) the end of the decapping pin to a blunt shape........worked for me........then I got the Mighty Armory device....

 

[BIZERKO666]

Been there. It happens

 

[Walkalong]

Yes, even seen one with the bottom of the cup pushed out of it.

That primer didn't want to come out of the primer pocket, either cold welded from time, corrosion, or crimped, but whatever it was, lots of friction coming out.

 

[alfsauve]

Dillion and others make a deprimer/resizer die that has a spring loaded punch. I use it with .38spl and it help tremendously with making sure the primer is not drawn back into the case.

 

[EricBu]

Have you ever seen a sizing/decapper leave a primer like this? The primer wasn't fully punched out, which jammed my press, and it looks like the decapper tried to push through the primer, and actually pushed out the dent left by the firing pin.

View attachment 1132752PRIMER by s s, on Flickr

View attachment 1132753PRIMER-2 by s s, on Flickr


This happened only periodically, and only on one brand of brass (MXT). Some MXT brass worked fine, others did this and jammed my machine.

I made some adjustments to the die, and worked fine after that, but I've never run into this before. Anyone else seen it?

Sometimes that happens when primers "suck back in" because they stick on some taper type decapper pins. That plays absolute hell on an automated press. Hence the invention of the FW Arms and Mighty Armory spring loaded decappers which eliminated the problem, and help make sure the spent primer get's completely ejected and makes it into the spent primer pick up.

 

[CQB45ACP]

Had it happen many a time, until I sanded/ground/eased (whatever the correct term is for the all knowers) the end of the decapping pin to a blunt shape........worked for me........then I got the Mighty Armory device....

“For all the knowers”

 

[buck460XVR]

Yes, even seen one with the bottom of the cup pushed out of it.

...same here. Have had the decapping pin make a hole right thru the primer and leave it in place. Just another piece for the scrap bucket.

 

[mdi]

When the end of the primer cup is pushed off. they are called "ringers".Just a ring of brass, the primer body is left in the primer pocket and often pretty difficult to remove, BTDT. Some brass, like 9mm it often isn't worth the trouble, but I have fought some 303 British ringers to save a case......

 

[Tilos]

OK, I just posted this in another thread yesterday:

Just something I do, that I have found stops crimped primers from getting stuck on the pin and sucked back into the primer pocket.
I put the primer pin in my drill and stone the end down to about half its diameter at the same angle as a sharpened pencil.
Then I stone a ball end onto the remaining diameter.

Not only does that stop primer sucking back into the primer pocket, but the smaller pin end can also "find" any offset flash hole easier too.
So, try it, nothing to lose,
jmo,
https://www.thehighroad.org/index.php?threads/decapping-pin-torque.915365/page-5#post-12547984
...

 

[Riomouse911]

I’ve only had it when the recapping pin slipped over time and was a hair too short. A quick adjustment and tightening the nut solved it.

Stay safe.

 

[GeoDudeFlorida]

When the end of the primer cup is pushed off. they are called "ringers".Just a ring of brass, the primer body is left in the primer pocket and often pretty difficult to remove, BTDT. Some brass, like 9mm it often isn't worth the trouble, but I have fought some 303 British ringers to save a case......

Reloadable .303 and 7.65 Argentine used to be pretty hard to come by. I picked up a lot at the range in Ft. White and stored it up. Now it’s getting used and every once in a while I get seized primers. That’s when I use the pocket reamer and uniforming tools. The reamer reshapes the stuck primer body and the uniform tool cuts away any excess material. Takes about a minute. I will also rescue 9mm and .45ACP - no reason.