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Rifles, Reloading, Optics, Equipment
Reloading
338 Edge Pressure Signs
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<blockquote data-quote="orwapitihunter" data-source="post: 319758" data-attributes="member: 1939"><p>I see this is somewhat of an old post but if you haven't figured out your problem, I think you have too much headspace. The crack you are seeing is a partial case head seperation. If the chamber is set up correctly then you are pushing the shoulder back when you are resizing your cases. When you do that the cartridge is moved forward by the fireing pin strike. The primer ignites, the pressure builds and the thin/soft front portion of the case grips the chamber wall. As pressure continues to build the primer is pushed back out of the primer pocket, and the rear of the case is slammed back into the bolt face. This streches the case infront of the thicker web and flattens the primer. If the case streches too much it seperates.</p></blockquote><p></p>
[QUOTE="orwapitihunter, post: 319758, member: 1939"] I see this is somewhat of an old post but if you haven't figured out your problem, I think you have too much headspace. The crack you are seeing is a partial case head seperation. If the chamber is set up correctly then you are pushing the shoulder back when you are resizing your cases. When you do that the cartridge is moved forward by the fireing pin strike. The primer ignites, the pressure builds and the thin/soft front portion of the case grips the chamber wall. As pressure continues to build the primer is pushed back out of the primer pocket, and the rear of the case is slammed back into the bolt face. This streches the case infront of the thicker web and flattens the primer. If the case streches too much it seperates. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
338 Edge Pressure Signs
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