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Rifles, Reloading, Optics, Equipment
Reloading
primer failure
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<blockquote data-quote="Mikecr" data-source="post: 457860" data-attributes="member: 1521"><p>CCI's require better strike than sufficient for others. But they are good primers, and you can work out the bugs in your striking with them.</p><p>Explosives react to peak energy. Not just amount, but amount applied at once.</p><p>This is why you can slowly crush a primer completely without setting it off(but not always).</p><p>And you might have normal dimpling on the back of your primers, but they can still fail to fire.</p><p></p><p>-It's cold out, the bolt/pin lube viscosity is slower. This means energy applied slower.</p><p>-Your pin depth or spring might need adjusting. It might not be traveling with sufficient speed on strike, or far enough to crush the primer pill in a way that sets it off. I've found that there can be a sweet spot between too deep, and too shallow for a primer/cartridge/action.</p><p>-You might not be seating primers to the bottom of their pockets, at a slight pre-crush amount. This allows the primers to move on strike, reducing peak of the energy applied.</p><p></p><p>People try different primers during load development until happening into a combo that works best for some reason.. No consistency to this.. In fact, this is just opposite of a method.</p><p>I suggest that ANY primer can work just as well, once the bugs are worked out.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 457860, member: 1521"] CCI's require better strike than sufficient for others. But they are good primers, and you can work out the bugs in your striking with them. Explosives react to peak energy. Not just amount, but amount applied at once. This is why you can slowly crush a primer completely without setting it off(but not always). And you might have normal dimpling on the back of your primers, but they can still fail to fire. -It's cold out, the bolt/pin lube viscosity is slower. This means energy applied slower. -Your pin depth or spring might need adjusting. It might not be traveling with sufficient speed on strike, or far enough to crush the primer pill in a way that sets it off. I've found that there can be a sweet spot between too deep, and too shallow for a primer/cartridge/action. -You might not be seating primers to the bottom of their pockets, at a slight pre-crush amount. This allows the primers to move on strike, reducing peak of the energy applied. People try different primers during load development until happening into a combo that works best for some reason.. No consistency to this.. In fact, this is just opposite of a method. I suggest that ANY primer can work just as well, once the bugs are worked out. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
primer failure
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