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Rifles, Reloading, Optics, Equipment
Reloading
Flattened primers acceptable pressure sign?
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<blockquote data-quote="Hugnot" data-source="post: 2282015" data-attributes="member: 115658"><p>Pressure is what drives the bullet thru the barrel & there will always be signs of it. Excessive pressure is not welcome and might occur from any number of causes and be shown in different ways. I look for difficult bolt lifts, leaking primers, expanded primer pockets, case head swipe marks, imprints of ejector slots & ejectors, Yes, I sure look at my primers & use a 10X Hasting Triplet (fancy name for small magnifier) to look for primers with no radii (assuming correct head-space), cratered primers with tight bolt face holes, or leaking primers and any number of other things. Excessive pressure can blow the primer out of the primer pocket. I also have a 6.5X47 Lapua (super hard brass head & small primer pocket) and think what are acceptable pressures for it would probably cause problems with other cartridges. </p><p></p><p>The pics shown above are probably what most max loads show - minor scuffing, flattened primer, no cratering and no leaking. Good pics!</p><p></p><p>Get one of those little magnifiers & get a good detailed look at stuff.</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2282015, member: 115658"] Pressure is what drives the bullet thru the barrel & there will always be signs of it. Excessive pressure is not welcome and might occur from any number of causes and be shown in different ways. I look for difficult bolt lifts, leaking primers, expanded primer pockets, case head swipe marks, imprints of ejector slots & ejectors, Yes, I sure look at my primers & use a 10X Hasting Triplet (fancy name for small magnifier) to look for primers with no radii (assuming correct head-space), cratered primers with tight bolt face holes, or leaking primers and any number of other things. Excessive pressure can blow the primer out of the primer pocket. I also have a 6.5X47 Lapua (super hard brass head & small primer pocket) and think what are acceptable pressures for it would probably cause problems with other cartridges. The pics shown above are probably what most max loads show - minor scuffing, flattened primer, no cratering and no leaking. Good pics! Get one of those little magnifiers & get a good detailed look at stuff. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Flattened primers acceptable pressure sign?
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