9mm Depriming

[jimmyj]

When depriming once fired 9mm brass the spend primer "Shoot" out of the primer pocket with force.
Is the normal or does my dies need adjusting ?

Jimmy

[505Gibbs]

I don't think you have any problems - IMO.
The force depends on the dimensional stack up of the pocket and the primer size and perhaps the hardness of the primer.
I've encountered this on other calibers as well.
Now, if you feel very little force you might consider setting that shell/case aside.

[max503]

They might be crimped primers. Don't they do that with some military rounds? Might make de-priming more of an effort.

[stansdds]

Yes, what brass are we talking about? Crimped primers require more effort and when the primer leaves the pocket, it can pop out smartly. Also, tight pockets, like those of S&B brass, can behave similar to crimped pockets.

[max]

Your decapping pin may be set a little too low.

[vinn]

they make a primer pocket reamer for some of those military staked in primers. or -- don't reload those cases.

[Nevada Ed]

That happens to me with rifle, revolver and pistol cases...... no big thing.

I just hate to have to sweep them up, after the job is finished, since we have pets in the house and the Mrs likes things kept nice.

I try placing a thumb or finger in front of the relese area to keep the spent primers
in the tray........ but now and then they jump past me.... usually with a "Pop".

1 love............ etc.

[lrrifleman]

I am finding a number of brands of commercial brass that have crimped primers. When I deprime these cases, the primers usually overshoot the spent primer tray on my press, due to the force required. (Note: I deprime my pickup brass on a single stage press.) After my pickup brass is deprimed, I usually swage the primer pockets, whether they need it or not.

What I am finding amazing is the number of pickup cases that have been previously reloaded that still have crimped primer pockets! I can't imagine what it took to reload cases where the primer pockets haven't had the crimps removed.

[mikld]

Just last week I had nuttin' to do so I sized/deprimed about 200 9mm mixed cases. I got in a rhythm and just picked up a case, set it in my Co-Ax and pulled the handle. I heard the "pop" and the "tink" when the dead primer fell into the spent primer catcher cup on a few. I have a habit of glancing at the headstamp when I pick it up and I cannot remember any one case/headstamp that would audibly "shoot" out a primer. While some have militaty brass that is harder to deprime, I cannot tell any difference. I have Lee dies, mostly handgun dies, RCBS, Hornady, and IIRC Pacific rifle dies, 30-06, and no difference in depriming. I have decrimped many, many military cases with a simple countersink (9mm, 45 ACP, 30-06, 7,62x51, 7.62x54r, and 303 British) and no, zero problems...

[Golphin]

I have never noticed that.

[STORMINORMAN]

The plastic tube on the bottom of my LEE Classic Cast Iron (single stage) is the main reason I use it to deprime almost all my fired cases: the LEE Universal Depriming / Decapping die works great on .223/5.56 cases, but I like the RCBS one even better for pistol & revolver calibers because of the replaceable pins.

Then it is off to the Thumlers...

Cheers!

P.S. Using these also helps keep my resizing dies pristine and unscathed.

[Hair Trigger]

Originally Posted by max

Your decapping pin may be set a little too low.

My first thought as well.

[Beemer-mark]

Originally Posted by max503

They might be crimped primers. Don't they do that with some military rounds? Might make de-priming more of an effort.

You'll de-prime very few crimped primers before the decapping pin breaks. 3 or 4 at most.

[Chubbs103]

Originally Posted by Beemer-mark

You'll de-prime very few crimped primers before the decapping pin breaks. 3 or 4 at most.

I have to disagree here. I've deprimed plenty of crimped primers in 9mm and never broken the pin.

A while ago, I picked up a a bunch of Win 9mm brass at the outdoor range near my house. Same headstamp as most of my other Win brass. I never expected these to be crimped. I had to deprime, sort, and swage them.

I crushed a few primers in ones that snuck past. That's enough to bring tears to your eyes these days.

[Johnnu2]

Originally Posted by Chubbs103

I have to disagree here. I've deprimed plenty of crimped primers in 9mm and never broken the pin.

A while ago, I picked up a a bunch of Win 9mm brass at the outdoor range near my house. Same headstamp as most of my other Win brass. I never expected these to be crimped. I had to deprime, sort, and swage them.

I crushed a few primers in ones that snuck past. That's enough to bring tears to your eyes these days.

ME TOO.... the pins have lasted me 'forever' and I'm mighty OLD

p.s. to answer the ops question... like most above "No Problem" pops !!

J.

[just plain joe]

Over the years this has occurred with both factory loaded empty cases as well as my reloads. I see it as a non-issue. The only problem for me is when they bounce out of the tray that holds the expended primers and fall onto the floor. I then have to pick them up by hand.

HTH.

JPJ