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Rifles, Reloading, Optics, Equipment
Reloading
Flattened primers acceptable pressure sign?
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<blockquote data-quote="30BR" data-source="post: 2280941" data-attributes="member: 64079"><p>You should be able to tell if they are hard to push into a case holder. Plus, the manufacturer of the case makes a difference. I am comfortable with loads in Lapua brass that I would never try in Federal or Remington brass. The expansion at the base means the primers will be more likely (not "certain to") get blown out. Because if one loading pushed the bases out, a second load at that pressure will do more "damage", as the head is now not as strong as it once was. Why tempt fate?</p><p></p><p>FWIW, I fireform my brass twice at lower loadings to harden up that area of the case before pushing them to my max load. My first fireform will be about 300 fps slower, and I try to use the slowest safe powder I have on hand for that ctg. That will not blow the case out fully; cases will still be a couple/3 thou shy of fully formed match brass. The 2nd load is usually only about 100 fps slower, and after that the brass can be F/L resized to yield about 1.5 thou clearance. CAUTION: I'm a <strong>TARGET </strong>shooter, NOT a hunter. I don't recommend keeping hunting resized brass so tight. .003" I feel is a better field round, and a touch more if using an autoloader.</p><p>I find I get better life out of the cases when I don't push them to within an inch of their life on the first firing.</p></blockquote><p></p>
[QUOTE="30BR, post: 2280941, member: 64079"] You should be able to tell if they are hard to push into a case holder. Plus, the manufacturer of the case makes a difference. I am comfortable with loads in Lapua brass that I would never try in Federal or Remington brass. The expansion at the base means the primers will be more likely (not "certain to") get blown out. Because if one loading pushed the bases out, a second load at that pressure will do more "damage", as the head is now not as strong as it once was. Why tempt fate? FWIW, I fireform my brass twice at lower loadings to harden up that area of the case before pushing them to my max load. My first fireform will be about 300 fps slower, and I try to use the slowest safe powder I have on hand for that ctg. That will not blow the case out fully; cases will still be a couple/3 thou shy of fully formed match brass. The 2nd load is usually only about 100 fps slower, and after that the brass can be F/L resized to yield about 1.5 thou clearance. CAUTION: I'm a [B]TARGET [/B]shooter, NOT a hunter. I don't recommend keeping hunting resized brass so tight. .003" I feel is a better field round, and a touch more if using an autoloader. I find I get better life out of the cases when I don't push them to within an inch of their life on the first firing. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Flattened primers acceptable pressure sign?
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