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Rifles, Reloading, Optics, Equipment
Reloading
Help identify preasure signs ?
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<blockquote data-quote="J E Custom" data-source="post: 356503" data-attributes="member: 2736"><p>There are several good indicators . The first is any bright places on the case head. This</p><p>is normally caused by the case head being pushed into the the ejector hole and then when</p><p>the bolt is operated it scrapes of some of the bulge leaving a round bright spot on the case </p><p>head the same size as the ejector .</p><p></p><p>Different primers will flatten differently because of cup thickness and hardness, So it is diffacult</p><p>to read them accuratly but if they are smashed flat with no radius on the primer edges it is</p><p>probably on the hot side.</p><p></p><p>Normally If you have heavy bolt lift it is hot and should be backed of by 1/2 to 1 grain of powder</p><p>and you will probably see all of the other signs mentioned.</p><p></p><p>When you really push them the brass will flow and looks kind of like galvanize but only a</p><p>different color and the cases get longer and have to be trimmed more often.</p><p></p><p>Velocity is also another indicator.(If you are getting quite a bit more velocity than the listed</p><p>Max loads) then you are pushing it.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 356503, member: 2736"] There are several good indicators . The first is any bright places on the case head. This is normally caused by the case head being pushed into the the ejector hole and then when the bolt is operated it scrapes of some of the bulge leaving a round bright spot on the case head the same size as the ejector . Different primers will flatten differently because of cup thickness and hardness, So it is diffacult to read them accuratly but if they are smashed flat with no radius on the primer edges it is probably on the hot side. Normally If you have heavy bolt lift it is hot and should be backed of by 1/2 to 1 grain of powder and you will probably see all of the other signs mentioned. When you really push them the brass will flow and looks kind of like galvanize but only a different color and the cases get longer and have to be trimmed more often. Velocity is also another indicator.(If you are getting quite a bit more velocity than the listed Max loads) then you are pushing it. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Help identify preasure signs ?
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