I Broke a 9mm case ram priming.

[358429]

An interesting case failure.

I am ram priming blazer brass 9x19 on my lee hand press with lee breech lock ram prime.

I have never seen this before.
What's your alls thoughts on this?

[nhyrum]

My first thought is one, how the hell did the ram have that much travel to push the primer in that far. Two, how did the primer not go off, and... How hard were you reefing on it

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[358429]

My first thought is one, how the hell did the ram have that much travel to push the primer in that far. Two, how did the primer not go off, and... How hard were you reefing on it

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The low force to seat the primer was my notice something was not right.

I turned the casing upside-down and the round brass piece fell out.

[tankgunner59]

My first thought was, I'm glad you didn't find that while firing.

[358429]

My first thought was, I'm glad you didn't find that while firing.

Yes! My fears exactly!

A jet of burning powder in the face is to be avoided

[Winger Ed.]

Wow.

I've recently seen a few brass Blazer cases, but since back in the old Berdan/ Alum. case days.
I always thought of them as 'el cheapo', throw away cases that weren't really
stout enough to be reloaded even though some are now Brass/Boxer primed.

[Finster101]

I have reloaded plenty of blazer brass without issue.

[Hogdaddy]

I have reloaded plenty of blazer brass without issue.

^^^^Ditto^^^^^^^^ ; )
H/D

[Plate plinker]

Where did you get the brass? I’m wondering if it was used in a open class gun to make Major 9?

[Sasquatch-1]

I have not had this problem but I have had a couple pieces of Blazer .38 spl. cases com through with NO recess in the rim so that I couldn't get them in a shell holder.

[Murphy]

An oddity for sure. Looking at the photos, I noticed the primer edges were still rounded and look fine, not like it took a lot of pressure for the case to give.

I wonder if CCI/Speer would be interested in the case for examination? Something went wrong some where for sure. It doesn't look like it was during the primer seating process.


Murphy

[GregLaROCHE]

Where those brand new cases? If so, I would think it was a manufacturing defect.

[beagle]

You might research and see how 9mm cases are formed initially. Saw a clip one time but forget the actual details. The 9mm case goes through multiple forming steps and especially the head. I was testing some loads once involving Red Dot and got a lttle exhuberient on either the charge or bullet seating depth. Botton line is I opened some primer pockets and labeled that load as "do not use" due to pressure. A by product of this experience is that a small ring was formed on the bullet base about halfway between the primer pocket and the edge of the case ring. This was a definite case void and occurred on aboy 90% of the cases. R-P brass comes to mind. This was in a 9mm Blackhawk convertible and strong as a bank vault.
I then researched case forming and it seems as if the 9mm head goes through some strange forming steps. This might give you some insight as to why this happened. I've loaded tens of thousands of 9mm cases and never seen it but who's to say when and why it happened. The forming steps might give you a clue./beagle

[Castaway]

I’m having trouble with what I’m seeing. The first pic appears to show the case head separated but I don’t see the primer. The second pic shows the case head with primer deeply inserted but i don’t see the separation along the case. Is the first pic a piece of flat brass the was supposed to be the “stop” or bottom of the primer pocket that was pushed loose by the priming tool?

[358429]

That's exactly it. The small brass piece is the bottom of the primer pocket.

[Alstep]

That looks to me as a major manufacturing flaw in the drawing process. Good thing it gave way while priming, and not when you fired it.

[gwpercle]

How deep are those primer pockets ?
I have never seen a primer seated so deeply ... the firing pin can't reach the primer .
So what's going on to let this situation happen ?
I've only got questions at this stage of the investigation .
Gary

[Castaway]

I’m with Murphy on contacting CCI. I seriously doubt this would have fired without the resistance on the primer to allow the anvil to detonate the priming material.