in my opinion the primers show evidence of the beginning of high pressure. .
F. Guffey
Yeah ... my micrometer does a dandy job of reheating my coffee ...And while it may be news to you, not every "internet reloader" is incapable of using micrometers.
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
Is that what you were trying to say the first time around?When the subject of high pressure is discussed case head expansion/diameter is always omitted.
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.And while it may be news to you, not every "internet reloader" is incapable of using micrometers.
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.I can only get a close guess at .0001".
Makes you think twice about picking up range brass huh?
Ayup ... there are a LOT of us here afflicted in that way.I am physically incapable of not picking up a piece of (centerfire) brass once it's been spotted
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" ....