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Rifles, Reloading, Optics, Equipment
Reloading
Simple one for you pros...
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<blockquote data-quote="cdherman" data-source="post: 1428187" data-attributes="member: 12282"><p>gohring3006 explanation is spot on in my experiences too. Really hard to use primers as a valid test for pressure, UNLESS, you know from experience what they are usually looking like, and then, with a new powder or charge, all other variables (especially case) the same, they are flattened. Then I would worry....</p><p></p><p>With a new barrel, you should be breaking in with some cheap bullets and powder you don't care for anyhow. Bartlein says clean after ever shot for first 5, then every other or so. Its painful. And they rec using patches. No brush, not even nylon. So I basically get my first 50 fired brass during the breakin process. Then I start in earnest.</p><p></p><p>Alas, brass will sometimes not grow to your chamber in the first firing. You can spot those when the primer is protruding a tad. Othertimes, you will only realize your brass did not all stretch the same if you use a good base to shoulder tool (Hornady etc) and realize that your fired brass is not all the same. Pros say you cannot assume its all the same till three firings. UNTIL its all the same length, the issue of a primer popping out, then getting flattened as the case head stretches remains... </p><p></p><p>I have this old M94 6.5x55 swede that has generous headspace. And a rough chamber I think. But it also shoots bug holes on occasion. It flattened all the primers for the first 2 firings of my Lapua brass. I was totally spooked (18 years ago now), and it took me years to understand what was happening.</p><p></p><p>Ah the confusion....</p></blockquote><p></p>
[QUOTE="cdherman, post: 1428187, member: 12282"] gohring3006 explanation is spot on in my experiences too. Really hard to use primers as a valid test for pressure, UNLESS, you know from experience what they are usually looking like, and then, with a new powder or charge, all other variables (especially case) the same, they are flattened. Then I would worry.... With a new barrel, you should be breaking in with some cheap bullets and powder you don't care for anyhow. Bartlein says clean after ever shot for first 5, then every other or so. Its painful. And they rec using patches. No brush, not even nylon. So I basically get my first 50 fired brass during the breakin process. Then I start in earnest. Alas, brass will sometimes not grow to your chamber in the first firing. You can spot those when the primer is protruding a tad. Othertimes, you will only realize your brass did not all stretch the same if you use a good base to shoulder tool (Hornady etc) and realize that your fired brass is not all the same. Pros say you cannot assume its all the same till three firings. UNTIL its all the same length, the issue of a primer popping out, then getting flattened as the case head stretches remains... I have this old M94 6.5x55 swede that has generous headspace. And a rough chamber I think. But it also shoots bug holes on occasion. It flattened all the primers for the first 2 firings of my Lapua brass. I was totally spooked (18 years ago now), and it took me years to understand what was happening. Ah the confusion.... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Simple one for you pros...
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