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<blockquote data-quote="Hugnot" data-source="post: 2817045" data-attributes="member: 115658"><p>My SRP use is with - .20P, .204R, .223, 6mm CM & 6.5 CM. Ball powders used are CFE223, R-S Hunter & Staball.</p><p></p><p>I use CCI 41's & Rem 7 1/2's mostly.</p><p>I used CCI 41's with my 6.5X47 Lapua with Re 15 & Varget. I spun my Lee decap pin in a cordless and ground it down with a Dremel to preserve the small flash hole.</p><p></p><p>I avoid using ball powder charges over 28 grains with SRP that limits their use to .20P, .204R & .223 - just me, others may have no problems.</p><p>No charge weight problems with extruded powders & CCI41's, like up to 44 grains or SW4350 in 6mm & 6.5 CM - performance like LRP.</p><p></p><p></p><p>CCI 41's are used to load zillions of 5.56 rounds used in all sorts of conditions with a variety of powders.</p><p></p><p>An exception may be the frisky little Rem 7 1/2, it has done well in the 6.5 CM with up to 47 grains of R-S Hunter & 120 grain bullets, performance approaches 6.5-06. CCI 41's have produced big velocity spreads with the same components & conditions.</p><p></p><p>More info on the frisky Rem 7 1/2 - Table 1:</p><p></p><p>[URL unfurl="true"]https://arxiv.org/ftp/arxiv/papers/1203/1203.2701.pdf[/URL]</p><p></p><p>Apparently, they put a lot of explosive mix in the 7 1/2.</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2817045, member: 115658"] My SRP use is with - .20P, .204R, .223, 6mm CM & 6.5 CM. Ball powders used are CFE223, R-S Hunter & Staball. I use CCI 41's & Rem 7 1/2's mostly. I used CCI 41's with my 6.5X47 Lapua with Re 15 & Varget. I spun my Lee decap pin in a cordless and ground it down with a Dremel to preserve the small flash hole. I avoid using ball powder charges over 28 grains with SRP that limits their use to .20P, .204R & .223 - just me, others may have no problems. No charge weight problems with extruded powders & CCI41's, like up to 44 grains or SW4350 in 6mm & 6.5 CM - performance like LRP. CCI 41's are used to load zillions of 5.56 rounds used in all sorts of conditions with a variety of powders. An exception may be the frisky little Rem 7 1/2, it has done well in the 6.5 CM with up to 47 grains of R-S Hunter & 120 grain bullets, performance approaches 6.5-06. CCI 41's have produced big velocity spreads with the same components & conditions. More info on the frisky Rem 7 1/2 - Table 1: [URL unfurl="true"]https://arxiv.org/ftp/arxiv/papers/1203/1203.2701.pdf[/URL] Apparently, they put a lot of explosive mix in the 7 1/2. [/QUOTE]
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