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Rifles, Reloading, Optics, Equipment
Reloading
Dang! Starting over with the kinetic bullet puller...
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<blockquote data-quote="Deleted member 107796" data-source="post: 1763333"><p>The WSM line has about the shortest neck length around which results in not much bearing surface. I crimp for a few of my magnum calibers when I have a cannelured bullet and has resulted in excellent precision and accuracy. There are a few threads that show data as to the effect of crimping bottleneck cases, on several different calibers. It is undeniable that in many cases, it can and does improve grouping. It's all about uniform neck tension. In this case, I just set the crimp from my RCBS die, which works well, 1/8th turn too much. It happens, no biggie.</p><p></p><p>It's a side issue, but I just revisited the crimp thread. Most of the mystery and hem and hawing of crimping seems to come from those with little crimping experience. I am quoting our friend, Reloader, here, which sums it up well:</p><p></p><p>"Like I said in my post, I've found crimped loads to produce slightly better accuracy and slightly better SD. The paper and chrono don't lie. You can't knock it until you've tried it.</p><p>This link pretty much sums it up:</p><p></p><p><a href="http://www.accuratereloading.com/crimping.html" target="_blank">http://www.accuratereloading.com/crimping.html</a></p><p></p><p>My results were very much the same.</p><p>There's another link on AR showing the lowered SD values when using the Lee FCD with a 308. Saeed could point you to it.</p><p>The fact is Crimping can improve things. May not make every rifle shoot better but, I'd venture to say it will not hurt anything if done properly."</p></blockquote><p></p>
[QUOTE="Deleted member 107796, post: 1763333"] The WSM line has about the shortest neck length around which results in not much bearing surface. I crimp for a few of my magnum calibers when I have a cannelured bullet and has resulted in excellent precision and accuracy. There are a few threads that show data as to the effect of crimping bottleneck cases, on several different calibers. It is undeniable that in many cases, it can and does improve grouping. It's all about uniform neck tension. In this case, I just set the crimp from my RCBS die, which works well, 1/8th turn too much. It happens, no biggie. It's a side issue, but I just revisited the crimp thread. Most of the mystery and hem and hawing of crimping seems to come from those with little crimping experience. I am quoting our friend, Reloader, here, which sums it up well: "Like I said in my post, I've found crimped loads to produce slightly better accuracy and slightly better SD. The paper and chrono don't lie. You can't knock it until you've tried it. This link pretty much sums it up: [URL]http://www.accuratereloading.com/crimping.html[/URL] My results were very much the same. There's another link on AR showing the lowered SD values when using the Lee FCD with a 308. Saeed could point you to it. The fact is Crimping can improve things. May not make every rifle shoot better but, I'd venture to say it will not hurt anything if done properly." [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Dang! Starting over with the kinetic bullet puller...
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