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Rifles, Reloading, Optics, Equipment
Reloading
R-26 and 143 eld-x in 6.5 creedmoor
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<blockquote data-quote="Bowfishn" data-source="post: 1333859" data-attributes="member: 56875"><p><a href="http://www.longrangehunting.com/threads/reloder-26.172482/page-6" target="_blank">http://www.longrangehunting.com/threads/reloder-26.172482/page-6</a> Post #83</p><p>This was my testing with Hornady 143 ELDX bullets in my 6.5 Creedmoor.</p><p>26" barrel Nosler brass BR2 Primers 2.890"OAL</p><p>I tested with a Magnetospeed installed. Three shot groups.</p><p></p><p>46gr. 2872 fps average vel. ES 13 SD 6.5</p><p>46.5gr 2908 fps average vel. ES 6 SD 3</p><p>47gr 2939 fps average vel. ES 10 SD 5.5</p><p>47.5gr 2954 fps average vel. ES 11 SD 5.85</p><p>48gr 2999 fps average vel. ES 12 SD 6.6</p><p>Although the 48.5 and 49 grain load showed no pressure signs, according to the velocity Quick Loads shows them as over pressure.</p><p><strong>48.5gr 3029 fps average vel. ES 13 SD 6.65 (QL 66,678 psi)</strong></p><p><strong>49gr 3054 fps average vel. ES 19 SD 9.6 (QL 69,485 psi)</strong></p><p></p><p>You may want to start lower than 46 maybe 44 or 45 depending on case and oal you go with, and watch velocity closely I will list QL values for Hornady case and average COAL with 24" barrel bellow for you, as a reference. Also note that I am also listing it with the default values for RL26. Note the velocity and compare it to the velocity on chart as that will be your pressure line.</p><p></p><p>Cartridge : 6.5 Creedmoor Hornady</p><p>Bullet : .264, 143, Hornady ELD-X 2635 G7</p><p>Useable Case Capaci: 46.285 grain H2O = 3.005 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-26</p><p></p><p>Predicted data by increasing and decreasing the given charge,</p><p>incremented in steps of 0.961% 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>-09.6 95 43.39 2580 2113 40242 10298 98.5 1.441</p><p>-08.7 96 43.85 2610 2164 41688 10385 98.9 1.417</p><p>-07.7 97 44.31 2641 2215 43194 10464 99.1 1.393</p><p>-06.7 98 44.77 2672 2266 44762 10538 99.4 1.370</p><p>-05.8 99 45.23 2702 2319 46396 10604 99.6 1.348</p><p>-04.8 100 45.69 2733 2371 48099 10663 99.8 1.325</p><p>-03.8 101 46.15 2763 2424 49874 10715 99.9 1.304</p><p>-02.9 102 46.62 2793 2478 51728 10760 100.0 1.282</p><p>-01.9 103 47.08 2824 2531 53663 10797 100.0 1.261 ! Near Maximum !</p><p>-01.0 104 47.54 2854 2586 55683 10828 100.0 1.240 ! Near Maximum !</p><p>+00.0 105 48.00 2884 2640 57792 10856 100.0 1.220 ! Near Maximum !</p><p>+01.0 106 48.46 2913 2695 59999 10883 100.0 1.200 ! Near Maximum !</p><p>+01.9 107 48.92 2943 2750 62303 10910 100.0 1.180 ! Near Maximum !</p><p>+02.9 108 49.38 2973 2806 64718 10935 100.0 1.161 !DANGEROUS LOAD-DO NOT USE!</p><p>+03.8 109 49.85 3002 2862 67240 10958 100.0 1.142 !DANGEROUS LOAD-DO NOT USE!</p><p>+04.8 110 50.31 3032 2918 69891 10981 100.0 1.123 !DANGEROUS LOAD-DO NOT USE!</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 48.00 3018 2893 73665 10311 100.0 1.115 !DANGEROUS LOAD-DO NOT USE!</p><p>Data for burning rate decreased by 10% relative to nominal value:</p><p>-Ba 105 48.00 2674 2271 45067 11097 96.6 1.359</p><p></p><p>Start low work up slowly, if you gave me more info on your setup I would run the numbers for you, Case brand and H2O capacity, COAL as well as your barrel length. Lot to lot powder variation can only be told by velocity obtained. Velocity is also affected by chamber (H2O will allow for adjustment) and tight(higher vel) or loose (slower vel) barrel.</p></blockquote><p></p>
[QUOTE="Bowfishn, post: 1333859, member: 56875"] [URL]http://www.longrangehunting.com/threads/reloder-26.172482/page-6[/URL] Post #83 This was my testing with Hornady 143 ELDX bullets in my 6.5 Creedmoor. 26" barrel Nosler brass BR2 Primers 2.890"OAL I tested with a Magnetospeed installed. Three shot groups. 46gr. 2872 fps average vel. ES 13 SD 6.5 46.5gr 2908 fps average vel. ES 6 SD 3 47gr 2939 fps average vel. ES 10 SD 5.5 47.5gr 2954 fps average vel. ES 11 SD 5.85 48gr 2999 fps average vel. ES 12 SD 6.6 Although the 48.5 and 49 grain load showed no pressure signs, according to the velocity Quick Loads shows them as over pressure. [B]48.5gr 3029 fps average vel. ES 13 SD 6.65 (QL 66,678 psi) 49gr 3054 fps average vel. ES 19 SD 9.6 (QL 69,485 psi)[/B] You may want to start lower than 46 maybe 44 or 45 depending on case and oal you go with, and watch velocity closely I will list QL values for Hornady case and average COAL with 24" barrel bellow for you, as a reference. Also note that I am also listing it with the default values for RL26. Note the velocity and compare it to the velocity on chart as that will be your pressure line. Cartridge : 6.5 Creedmoor Hornady Bullet : .264, 143, Hornady ELD-X 2635 G7 Useable Case Capaci: 46.285 grain H2O = 3.005 cm³ Cartridge O.A.L. L6: 2.800 inch = 71.12 mm Barrel Length : 24.0 inch = 609.6 mm Powder : Alliant Reloder-26 Predicted data by increasing and decreasing the given charge, incremented in steps of 0.961% 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 -09.6 95 43.39 2580 2113 40242 10298 98.5 1.441 -08.7 96 43.85 2610 2164 41688 10385 98.9 1.417 -07.7 97 44.31 2641 2215 43194 10464 99.1 1.393 -06.7 98 44.77 2672 2266 44762 10538 99.4 1.370 -05.8 99 45.23 2702 2319 46396 10604 99.6 1.348 -04.8 100 45.69 2733 2371 48099 10663 99.8 1.325 -03.8 101 46.15 2763 2424 49874 10715 99.9 1.304 -02.9 102 46.62 2793 2478 51728 10760 100.0 1.282 -01.9 103 47.08 2824 2531 53663 10797 100.0 1.261 ! Near Maximum ! -01.0 104 47.54 2854 2586 55683 10828 100.0 1.240 ! Near Maximum ! +00.0 105 48.00 2884 2640 57792 10856 100.0 1.220 ! Near Maximum ! +01.0 106 48.46 2913 2695 59999 10883 100.0 1.200 ! Near Maximum ! +01.9 107 48.92 2943 2750 62303 10910 100.0 1.180 ! Near Maximum ! +02.9 108 49.38 2973 2806 64718 10935 100.0 1.161 !DANGEROUS LOAD-DO NOT USE! +03.8 109 49.85 3002 2862 67240 10958 100.0 1.142 !DANGEROUS LOAD-DO NOT USE! +04.8 110 50.31 3032 2918 69891 10981 100.0 1.123 !DANGEROUS LOAD-DO NOT USE! 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 48.00 3018 2893 73665 10311 100.0 1.115 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 105 48.00 2674 2271 45067 11097 96.6 1.359 Start low work up slowly, if you gave me more info on your setup I would run the numbers for you, Case brand and H2O capacity, COAL as well as your barrel length. Lot to lot powder variation can only be told by velocity obtained. Velocity is also affected by chamber (H2O will allow for adjustment) and tight(higher vel) or loose (slower vel) barrel. [/QUOTE]
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R-26 and 143 eld-x in 6.5 creedmoor
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