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Old 11-21-2010, 1:27 PM
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231, Remember .40 is a high pressure round. I reload 357 Sig & 10mm and use AA-7 & AA-9, and only a published load. My best accuracy was always 90-95% max. You may be asking the cartridge to do something outside it's parameters.
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Last edited by f4tweet; 11-21-2010 at 2:04 PM..
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