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Rifles, Reloading, Optics, Equipment
Reloading
Pressure Signs Help Needed
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<blockquote data-quote="Blackhawk" data-source="post: 1836488" data-attributes="member: 105459"><p>Just looking at the case heads. The second one shows a slight indication on the case head ,which usually means that the cartridge case is being slammed back into the bolt face. Couple that with the primer being slightly flattened indicates you you are on the threshold of exhibiting the classic signs of over pressure. If I were you I would back off at least 10 precent on your powder and then using your 2 best friends your chrono,and the latter test determine your E.S.& S.D. Once you have established this as a baseline you can work up to your most accurate load, assuming that you have already established the optimum seating depth for your bullet(known as the jump factor). Again by using a simple test with chronograph determine your best E.S. & S.D. Please don't be fooled by the fastest MV, but rather work with your chronograph. If it is accurate it will serve you well and guide you into the best possible combination of powder, case, and bullet for your weapon of choice.</p></blockquote><p></p>
[QUOTE="Blackhawk, post: 1836488, member: 105459"] Just looking at the case heads. The second one shows a slight indication on the case head ,which usually means that the cartridge case is being slammed back into the bolt face. Couple that with the primer being slightly flattened indicates you you are on the threshold of exhibiting the classic signs of over pressure. If I were you I would back off at least 10 precent on your powder and then using your 2 best friends your chrono,and the latter test determine your E.S.& S.D. Once you have established this as a baseline you can work up to your most accurate load, assuming that you have already established the optimum seating depth for your bullet(known as the jump factor). Again by using a simple test with chronograph determine your best E.S. & S.D. Please don't be fooled by the fastest MV, but rather work with your chronograph. If it is accurate it will serve you well and guide you into the best possible combination of powder, case, and bullet for your weapon of choice. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Pressure Signs Help Needed
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