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Rifles, Reloading, Optics, Equipment
7mm STW
Questions regarding properly sizing belted cases
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<blockquote data-quote="7stw" data-source="post: 802017" data-attributes="member: 22854"><p>Cerwin, I read your thread starter the day you wrote it, but have been busy,so here goes. First of all, congrats on the new rifle. Those " macs" are art forms, and are usually tack drivers in what ever caliber they come in. </p><p>And, of course, Welcome to the Brotherhood! </p><p>As to concentricity issues, for the MOST part, it happens on the resizing stage, and more then probable, when you are on the expander. Better put, when you are pulling down on the case neck. It CAN happen during seating, but is more likely to be in the resizer set up. It can be as little as slightly worn press linkage, play in the die threads, or the shell holder not perfectly square with the ram. Remember, the taller the case, the more deviation is possible. I have driven myself nuts with it before, and finally, I was able to keep it below .002. </p><p>My best explanation is just cross tees, and dot eyes!!! This cartridge is NOT hard to load for. It is very readable, and SHOOTABLE. And I must stress proper initial die set up. That is a integral part of case life, and accuracy as well. Enjoy the ride, and don't be afraid to ask a question or two if needed. This is a " kick *** " round, make no mistake about it! And extremely accurate too!</p></blockquote><p></p>
[QUOTE="7stw, post: 802017, member: 22854"] Cerwin, I read your thread starter the day you wrote it, but have been busy,so here goes. First of all, congrats on the new rifle. Those " macs" are art forms, and are usually tack drivers in what ever caliber they come in. And, of course, Welcome to the Brotherhood! As to concentricity issues, for the MOST part, it happens on the resizing stage, and more then probable, when you are on the expander. Better put, when you are pulling down on the case neck. It CAN happen during seating, but is more likely to be in the resizer set up. It can be as little as slightly worn press linkage, play in the die threads, or the shell holder not perfectly square with the ram. Remember, the taller the case, the more deviation is possible. I have driven myself nuts with it before, and finally, I was able to keep it below .002. My best explanation is just cross tees, and dot eyes!!! This cartridge is NOT hard to load for. It is very readable, and SHOOTABLE. And I must stress proper initial die set up. That is a integral part of case life, and accuracy as well. Enjoy the ride, and don't be afraid to ask a question or two if needed. This is a " kick *** " round, make no mistake about it! And extremely accurate too! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
7mm STW
Questions regarding properly sizing belted cases
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