Primer problem

[Alantoo]

The pocket photos are still not clear enough, but are you still sure the suspect pockets are silver lined?

And there were no dimpled discs and loose tripod/anvils in the pile?

Sorry to bang on about it but some of the primers shown have been severely distorted, the firing pin dimples are reversed and appear to have fracture lines forming around them as though they were being held in by more than just the usual crimp...I have not had that happen even with crimped rounds but haven't done many of them.


Just try comparing diameters of the pockets or try your pocket cleaner / reamer in one of the suspect pockets?

Alan

 

[Rory]

@mikesy - Looking at the 2nd lot of pictures, it looks like the way Hornady do their primer crimp - a circular band that squeezed in/around the primer. This differs to a military crimp which is usually three stakes of displaced brass.
I have had similar on my Hornady .308, damaged a few primers until I used a chamfer tool to remove the crimped 'lip'. Once it was done, the primers could slip in positively and without distortion.
What I thought (and I'm sure Alantoo was) was occurring was that the base of the primer was seperating and leaving the primer walls stuck to the primer pocket walls. From the pics of your primers, I can't see any 'hubcap' disks, so I think they are coming out ok, and it's just the crimp around the pocket that needs chamfering.

Edit - Just read @Alantoo latest post, do have a look at the primers for some 'hubcap' disks and measure those primer pockets to compare and see if primer walls are being left inside.

 

[mikesy]

Yes, if you just put a chamfer on the crimp, that's the bit you can see lining the primer hole, don't go digging deep or into the case head. I've done loads of Fed brass in 222 this way, without a problem. New Lapua is the way to go though, less than £60 gets you god knows how many reloads out of them. I can't put a number on it because mine is yet to fail. But yes, you'll be ok with the Fed.

cjs

I'll go for the Lapua brass on my next purchase. I also have my own PPU once fired as well as the Federal.
It'll be interesting to see how many reloads I get from each.

 

[cjs66]

I'll go for the Lapua brass on my next purchase. I also have my own PPU once fired as well as the Federal.
It'll be interesting to see how many reloads I get from each.

I find PPU better than Fed and they are not crimped. You’ll not regret a nice new box of Lapua. Hope you get sorted, ya gota love the 222.

 

[mikesy]

I find PPU better than Fed and they are not crimped. You’ll not regret a nice new box of Lapua. Hope you get sorted, ya gota love the 222.

Well, its my first centerfire and so far I'm really happy with it as it ticks all the boxes for my needs.
I'm hoping once I start using my reloads I'll find out if it can be even better than it is now.
Thanks to all who offered their advice, it's all been informative and helpful.

 

[Muir]

I just looked again. I have never seen 222 cases with any kind of factory primer crimp. It is definitely something else.~Muir

 

[mikesy]

What are you thinking.
Could it be too much pressure damaging the primers?

 

[J.kerslake]

@mikesy are these the ones you bought from me? If they are, they’ll be different batches as they were bought at various points last year. I’ve got about 50 federal cases that I’m reloading and haven’t had any do that!

 

[A Guy Out West]

I just looked again. I have never seen 222 cases with any kind of factory primer crimp. It is definitely something else.~Muir

Isn’t primer crimping a military round thing? I can’t ever recall seeing a non military cartridge having its primer crimped. Why would fed crimp a .222?

 

[Rory]

Isn’t primer crimping a military round thing? I can’t ever recall seeing a non military cartridge having its primer crimped. Why would fed crimp a .222?

My Hornady .308 Whitetail have a similar circular 'crimp' which I've had to chamfer out when reloading the cases.

 

[Fosbery Holster]

What are you thinking.
Could it be too much pressure damaging the primers?

Have you in your possession a set of dial callipers ? if so measure the internal diameter of an obviously clean primer pocket, then measure the internal diameter of the case with the silver ring and let us know your findings .

 

[Alantoo]

Have you in your possession a set of dial callipers ? if so measure the internal diameter of an obviously clean primer pocket, then measure the internal diameter of the case with the silver ring and let us know your findings .

Third time it has been suggested...maybe third time lucky.

Alan

 

[Fosbery Holster]

Third time it has been suggested...maybe third time lucky.

Alan

Sorry didn’t look back into previous posts, would love to find a definitive answer, when the problem is not in your hands it’s so awkward.

 

[Alantoo]

Sorry didn’t look back into previous posts, would love to find a definitive answer, when the problem is not in your hands it’s so awkward.

I agree...frustrating...trying to follow a logical deductive system but not getting full feed back. I guess the OP is not answering some of the questions because he can't see the relevance or doesn't understand the way the question was posed.

His OP description of a "silver ring visible inside the recess" and his request for a way of removing them, seems quite clear that there is a bit of primer remaining in the pocket...



Alan

 

[mikesy]

Third time it has been suggested...maybe third time lucky.

Alan

I'm getting there, had to go get some new batteries for my calipers

 

[Fosbery Holster]

I'm getting there, had to go get some new batteries for my calipers

Good luck...... please let us know.

 

[mikesy]

The internal diameter of the clean primer pocket is between
4.40mm and 4.42mm.
The one with the ring is
Between 4.35 mm and 4.37mm

 

[mikesy]

The internal diameter of the clean primer pocket is between
4.40mm and 4.42mm.
The one with the ring is
Between 4.35 mm and 4.37mm

@mikesy are these the ones you bought from me? If they are, they’ll be different batches as they were bought at various points last year. I’ve got about 50 federal cases that I’m reloading and haven’t had any do that!

Hi there, yes they are.

 

[mikesy]

The internal diameter of the clean primer pocket is between
4.40mm and 4.42mm.
The one with the ring is
Between 4.35 mm and 4.37mm


Hi there, yes they are.

It's just one of these things, only about 30 have done this, I'm more curious in what's caused this as all the other brass I've deprimed has been fine.

 

[A Guy Out West]

My Hornady .308 Whitetail have a similar circular 'crimp' which I've had to chamfer out when reloading the cases.

I’m not sure in the manufacture process when they stamp the case head with the cartridge data. Could it be that they are 7.62 brass blanks that were stamped .308 Win? One of my boys came home from NRA camp a few years ago with some Hornady 30/06 brass that had crimps too. I figured it was surplus military contract ammo that they donated to the NRA. As they say on the North end of the kingdom, I duknow???