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264 Mag
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<blockquote data-quote="Mike D Texas" data-source="post: 2651118" data-attributes="member: 71221"><p>I have QL. I've run RL33, N570, LRT and Retumbo in my 264 WMI with 156 Berger EOL. In order of burn rate based on actual case volume with my setup Retumbo is too fast and pressures out very early, then RL33, then N570 and finally LRT. LRT give the highest velocity before pressuring out but QL still only calculates 96% burn in a 28" barrel. N570 is perfection in this case, 101% case fill and 100% powder burn within the barrel and still gets me 3350fps avg. LRT can get over 3400 without hitting pressure but is not as accurate. </p><p></p><p>Internal ballistics are a funny thing.</p></blockquote><p></p>
[QUOTE="Mike D Texas, post: 2651118, member: 71221"] I have QL. I’ve run RL33, N570, LRT and Retumbo in my 264 WMI with 156 Berger EOL. In order of burn rate based on actual case volume with my setup Retumbo is too fast and pressures out very early, then RL33, then N570 and finally LRT. LRT give the highest velocity before pressuring out but QL still only calculates 96% burn in a 28” barrel. N570 is perfection in this case, 101% case fill and 100% powder burn within the barrel and still gets me 3350fps avg. LRT can get over 3400 without hitting pressure but is not as accurate. Internal ballistics are a funny thing. [/QUOTE]
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