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Rifles, Reloading, Optics, Equipment
Reloading
Pressure?
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<blockquote data-quote="MagnumManiac" data-source="post: 2820735" data-attributes="member: 10755"><p>Cratered primers are a mechanical issue within the bolt face. They are e very poor indicator of pressure.</p><p>If a rifle produces cratered primers because of a bevel in the bolt face, it will crater primers always.</p><p>If a rifle doesn't normally crater primers but then does, it's a sure sign of high pressure.</p><p>Also, stiff ejector springs often show up on brass with normal loads. When you have these issues, the only safe way to determine pressure is through a chronograph, but the other way is looking at primer edges, if they are still radiused, then pressure is not excessive. You can load until the primer fills the pocket but does not show a 'top hat' appearance when removed.</p><p>Oh, and just FYI Norma brass is soft.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 2820735, member: 10755"] Cratered primers are a mechanical issue within the bolt face. They are e very poor indicator of pressure. If a rifle produces cratered primers because of a bevel in the bolt face, it will crater primers always. If a rifle doesn’t normally crater primers but then does, it’s a sure sign of high pressure. Also, stiff ejector springs often show up on brass with normal loads. When you have these issues, the only safe way to determine pressure is through a chronograph, but the other way is looking at primer edges, if they are still radiused, then pressure is not excessive. You can load until the primer fills the pocket but does not show a ‘top hat’ appearance when removed. Oh, and just FYI Norma brass is soft. Cheers. [/QUOTE]
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