Flattest primer award

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Interesting... thanks for posting.
I wonder if they didn't blow and instead extruded like that because there is something unusual with the primer itself like too soft or thin. ??
high pressure signs come in two or three normally so it is hard to say w/o measuring but also it would be interesting to poke at those primers
to see what's up with them.
 
in my opinion the primers show evidence of the beginning of high pressure. .

F. Guffey

If you have pictures or links - please post what a 'scary flat' or wildly over-pressured case looks like to you... Anyone new to reloading should appreciate what exactly to look for without creating any of these over-pressured scenarios themselves.
 
22 responses without a mention of case head expansion, news to me? When the subject of high pressure is discussed case head expansion/diameter is always omitted.

F. Guffey

Well, you mentioned it on #25. :)
 
When the subject of high pressure is discussed case head expansion/diameter is always omitted.
Is that what you were trying to say the first time around?

But yes, it isn't usually mentioned. Not that the OP was about measuring for pressure, just showing over pressure rounds some morons shot. No need to measure on those.
 
And while it may be news to you, not every "internet reloader" is incapable of using micrometers. :)
I use my micrometers often & while I can easily measure .001" +/- 1/2. I can only get a close guess at .0001". When you get down to .00025 then that is out of the reach of my tools & I thought I had pretty good measuring tools. I just don't have a need to measure that small. I wouldn't trust it anyways without a standard.

As far as the primers I was thinking the pocket is probably lose. That has be the case when I've seen others like it. Now the second picture I seen looks like high pressure & I've seen brass extruded into the injector before also.
 
I can only get a close guess at .0001".
Measuring to the nearest .0001 is tough if you don't do it regularly, no doubt, but can be done reasonably well by those who only do it occasionally. We have a lot of folks here proficient with micrometers, standard, blade, ball, etc, with more than a few machinists. I simply take umbrage to fguffey poor mouthing "internet" reloaders all the time. I am sure he is one smart cookie, but he isn't the only one here. Hmm, does posting here, and elsewhere, make him an "internet" reloader? Inquiring minds want to know. :)
 
Lol
I do understand. I've followed his post for years & actually enjoy them. I may be wrong but I think they are just misunderstood by the way they are written.

There are several here I have great respect for their amount of knowledge. I don't always agree with everything they proclaim. I also at times don't like the way they come off. But at the end of the day I don't really know anyone here enough to get upset with them.

I'll try to quit side tracking the thread now.
 
Honestly, I'm surprised those rounds held together during firing. They must be pushing the ragged edge of letting loose.
 
A while back I found a magnum rifle casing (don't recall the caliber) that obviously didn't belong in the rifle it was fired in. Case was split open from the shoulder to the head and the shoulder had a fire formed radius in the wrong spot that suggested the rifle in question was chambered in a Weatherby caliber. The destroyed case was not a Weatherby round.

I wish I'd have kept it and posted some pictures here. The forensic analysis and discussion would have been interesting

I have picked a quite a few .223 cases at the range that indicated to me that the loads were way too hot (brass flowing around the ejector), but noting that looked like the OPs pics.
 
A while back I found a magnum rifle casing (don't recall the caliber) that obviously didn't belong in the rifle it was fired in. Case was split open from the shoulder to the head and the shoulder had a fire formed radius in the wrong spot that suggested the rifle in question was chambered in a Weatherby caliber. The destroyed case was not a Weatherby round.

I wish I'd have kept it and posted some pictures here. The forensic analysis and discussion would have been interesting

I have picked a quite a few .223 cases at the range that indicated to me that the loads were way too hot (brass flowing around the ejector), but noting that looked like the OPs pics.

Reminded me of my "300winchester-weatherby" ....

2q3ozkl.jpg
 
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