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Rifles, Reloading, Optics, Equipment
Reloading
Whats the story on flat primers?
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<blockquote data-quote="Canadian Bushman" data-source="post: 982222" data-attributes="member: 41122"><p>You said you were doing barrel break in? If there is oil residue left in the chamber from cleaning it will show high pressure signs when there otherwise wouldnt be. Check the cartridge's primers after a few rounds and then see how they look. </p><p></p><p>There are other things that can cause flattened primers besides pressure so its always good to look out for the sequence of events. </p><p></p><p>Slight flattening of primers </p><p>Flattened primers</p><p>Ejector marks</p><p>Ejector swipes</p><p>Heavy bolt lift</p><p>Sticky bolt. </p><p></p><p>When your gradual increasing of loads causes these events. Typically in this order, you can bet your getting into high pressure. Also if your shooting over a chrono, you will notice jumps in velocity that again reflect the increase in powder.</p></blockquote><p></p>
[QUOTE="Canadian Bushman, post: 982222, member: 41122"] You said you were doing barrel break in? If there is oil residue left in the chamber from cleaning it will show high pressure signs when there otherwise wouldnt be. Check the cartridge's primers after a few rounds and then see how they look. There are other things that can cause flattened primers besides pressure so its always good to look out for the sequence of events. Slight flattening of primers Flattened primers Ejector marks Ejector swipes Heavy bolt lift Sticky bolt. When your gradual increasing of loads causes these events. Typically in this order, you can bet your getting into high pressure. Also if your shooting over a chrono, you will notice jumps in velocity that again reflect the increase in powder. [/QUOTE]
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Reloading
Whats the story on flat primers?
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