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Rl16 with 6.5 creedmoor
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<blockquote data-quote="Bowfishn" data-source="post: 1381386" data-attributes="member: 56875"><p>Yeah it's negative 14 degrees here with only minor 5 mph winds and gust to 7 mph</p><p></p><p>Here it is with RL23, it seems it fills the case with less powder, I doubt the chart is useful past 106% fill, that seem to be the limit I get for fill with RL26 in my 6.5 CM, but my lot number has a higher ba than the default so I can get more pressure with less fill equaling more velocity. </p><p></p><p>Cartridge : .260 Rem</p><p>Bullet : .264, 143, Hornady ELD-X 2635</p><p>Useable Case Capaci: 44.760 grain H2O = 2.906 cm³</p><p>Cartridge O.A.L. L6: 2.800 inch = 71.12 mm</p><p>Barrel Length : 24.0 inch = 609.6 mm</p><p>Powder : Alliant Reloder-23</p><p></p><p>Predicted data by increasing and decreasing the given charge,</p><p>incremented in steps of 1.179% of nominal charge.</p><p>CAUTION: Figures exceed maximum and minimum recommended loads !</p><p></p><p>Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time</p><p> % % Grains fps ft.lbs psi psi % ms</p><p></p><p>-11.8 93 37.40 2312 1697 31915 8447 97.0 1.595</p><p>-10.6 94 37.90 2344 1744 33155 8560 97.5 1.570</p><p>-09.4 95 38.40 2376 1792 34449 8667 98.0 1.545</p><p>-08.3 96 38.90 2408 1841 35792 8768 98.4 1.521</p><p>-07.1 98 39.40 2440 1890 37198 8864 98.7 1.497</p><p>-05.9 99 39.90 2472 1940 38667 8953 99.1 1.470</p><p>-04.7 100 40.40 2503 1990 40196 9036 99.3 1.443</p><p>-03.5 101 40.90 2535 2041 41793 9112 99.6 1.417</p><p>-02.4 103 41.40 2567 2092 43459 9181 99.7 1.392</p><p>-01.2 104 41.90 2598 2143 45201 9243 99.9 1.367</p><p>+00.0 105 42.40 2630 2195 47020 9298 100.0 1.343</p><p>+01.2 106 42.90 2661 2248 48922 9346 100.0 1.319</p><p>+02.4 108 43.40 2692 2301 50911 9387 100.0 1.296</p><p>+03.5 109 43.90 2723 2354 52994 9427 100.0 1.273 ! Near Maximum !</p><p>+04.7 110 44.40 2753 2407 55173 9466 100.0 1.251 ! Near Maximum !</p><p>+05.9 111 44.90 2784 2461 57455 9503 100.0 1.229 ! Near Maximum !</p><p></p><p>Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge</p><p>Data for burning rate increased by 10% relative to nominal value:</p><p>+Ba 105 42.40 2751 2404 58432 8870 100.0 1.234 ! Near Maximum !</p><p>Data for burning rate decreased by 10% relative to nominal value:</p><p>-Ba 105 42.40 2448 1902 37556 9308 95.6 1.484</p></blockquote><p></p>
[QUOTE="Bowfishn, post: 1381386, member: 56875"] Yeah it's negative 14 degrees here with only minor 5 mph winds and gust to 7 mph Here it is with RL23, it seems it fills the case with less powder, I doubt the chart is useful past 106% fill, that seem to be the limit I get for fill with RL26 in my 6.5 CM, but my lot number has a higher ba than the default so I can get more pressure with less fill equaling more velocity. Cartridge : .260 Rem Bullet : .264, 143, Hornady ELD-X 2635 Useable Case Capaci: 44.760 grain H2O = 2.906 cm³ Cartridge O.A.L. L6: 2.800 inch = 71.12 mm Barrel Length : 24.0 inch = 609.6 mm Powder : Alliant Reloder-23 Predicted data by increasing and decreasing the given charge, incremented in steps of 1.179% of nominal charge. CAUTION: Figures exceed maximum and minimum recommended loads ! Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time % % Grains fps ft.lbs psi psi % ms -11.8 93 37.40 2312 1697 31915 8447 97.0 1.595 -10.6 94 37.90 2344 1744 33155 8560 97.5 1.570 -09.4 95 38.40 2376 1792 34449 8667 98.0 1.545 -08.3 96 38.90 2408 1841 35792 8768 98.4 1.521 -07.1 98 39.40 2440 1890 37198 8864 98.7 1.497 -05.9 99 39.90 2472 1940 38667 8953 99.1 1.470 -04.7 100 40.40 2503 1990 40196 9036 99.3 1.443 -03.5 101 40.90 2535 2041 41793 9112 99.6 1.417 -02.4 103 41.40 2567 2092 43459 9181 99.7 1.392 -01.2 104 41.90 2598 2143 45201 9243 99.9 1.367 +00.0 105 42.40 2630 2195 47020 9298 100.0 1.343 +01.2 106 42.90 2661 2248 48922 9346 100.0 1.319 +02.4 108 43.40 2692 2301 50911 9387 100.0 1.296 +03.5 109 43.90 2723 2354 52994 9427 100.0 1.273 ! Near Maximum ! +04.7 110 44.40 2753 2407 55173 9466 100.0 1.251 ! Near Maximum ! +05.9 111 44.90 2784 2461 57455 9503 100.0 1.229 ! Near Maximum ! Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge Data for burning rate increased by 10% relative to nominal value: +Ba 105 42.40 2751 2404 58432 8870 100.0 1.234 ! Near Maximum ! Data for burning rate decreased by 10% relative to nominal value: -Ba 105 42.40 2448 1902 37556 9308 95.6 1.484 [/QUOTE]
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Rl16 with 6.5 creedmoor
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