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Rifles, Reloading, Optics, Equipment
Reloading
Blown primer in .243 Ackley
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<blockquote data-quote="NEMTHunter" data-source="post: 1542452" data-attributes="member: 77631"><p>Thanks again for bringing this up. </p><p></p><p>Never did I say they were safe for the solids. Then again neither did I say they were not safe for the solids. But I do recall and maybe you did not see it. I said I suggested I would start @ 40 grains and worked up from there.</p><p></p><p>Just because it's solid copper does not in any way mean it has a longer bearing surface. There are plenty solids that have shorter bearing surfaces then the lead core bullets. Most modern solids have just as short bearing surface and in same cases even shorter. hence for the same weight they need a faster twist. they stretch the bullet out to get the weight. Again we can not make it a blanket statement. I feel there is more to it then the powder charge.</p><p></p><p></p><p></p><p></p><p>This is right. Or close to it. ANSI/SAAMI list the .243 win with a MAP of 52,000 CUP. OR 60,000 PSI.</p><p></p><p>55 to 58k PSi is below max suggested.</p></blockquote><p></p>
[QUOTE="NEMTHunter, post: 1542452, member: 77631"] Thanks again for bringing this up. Never did I say they were safe for the solids. Then again neither did I say they were not safe for the solids. But I do recall and maybe you did not see it. I said I suggested I would start @ 40 grains and worked up from there. Just because it's solid copper does not in any way mean it has a longer bearing surface. There are plenty solids that have shorter bearing surfaces then the lead core bullets. Most modern solids have just as short bearing surface and in same cases even shorter. hence for the same weight they need a faster twist. they stretch the bullet out to get the weight. Again we can not make it a blanket statement. I feel there is more to it then the powder charge. This is right. Or close to it. ANSI/SAAMI list the .243 win with a MAP of 52,000 CUP. OR 60,000 PSI. 55 to 58k PSi is below max suggested. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Blown primer in .243 Ackley
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