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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Help with a start/stop load for RL 17/HV100
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<blockquote data-quote="gbp" data-source="post: 257853" data-attributes="member: 6340"><p>Cartridge : .300 Rem SA Ultra Mag</p><p>Bullet : .308, 208, Hornady A-MAX 30712</p><p>Useable Case Capaci: 68.011 grain H2O = 4.416 cm³</p><p>Cartridge O.A.L. L6: 3.005 inch = 76.33 mm</p><p>Barrel Length : 26.0 inch = 660.4 mm</p><p>Powder : Alliant Reloder-17</p><p></p><p>Predicted data by increasing and decreasing the given charge,</p><p>incremented in steps of 2.0% 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>-20.0 72 47.22 2335 2518 34651 7821 99.3 1.658</p><p>-18.0 74 48.40 2385 2626 36839 7974 99.6 1.619</p><p>-16.0 75 49.58 2434 2736 39162 8113 99.9 1.572</p><p>-14.0 77 50.76 2483 2847 41619 8237 100.0 1.529</p><p>-12.0 79 51.94 2531 2958 44221 8347 100.0 1.487</p><p>-10.0 81 53.12 2578 3071 46981 8453 100.0 1.447</p><p>-08.0 83 54.30 2625 3183 49904 8557 100.0 1.409</p><p>-06.0 84 55.48 2672 3297 53008 8659 100.0 1.372</p><p>-04.0 86 56.66 2718 3411 56298 8759 100.0 1.336 ! Near Maximum !</p><p>-02.0 88 57.84 2763 3527 59793 8857 100.0 1.302 ! Near Maximum !</p><p>+00.0 90 59.02 2808 3643 63497 8952 100.0 1.269 ! Near Maximum !</p><p>+02.0 92 60.20 2853 3760 67446 9046 100.0 1.237 !DANGEROUS LOAD-DO NOT USE!</p><p>+04.0 93 61.38 2898 3878 71612 9136 100.0 1.206 !DANGEROUS LOAD-DO NOT USE!</p><p>+06.0 95 62.56 2942 3997 76025 9225 100.0 1.177 !DANGEROUS LOAD-DO NOT USE!</p><p>+08.0 97 63.74 2986 4117 80711 9310 100.0 1.148 !DANGEROUS LOAD-DO NOT USE!</p><p>+10.0 99 64.92 3030 4239 85689 9393 100.0 1.121 !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 90 59.02 2881 3833 75066 8679 100.0 1.194 !DANGEROUS LOAD-DO NOT USE!</p><p>Data for burning rate decreased by 10% relative to nominal value:</p><p>-Ba 90 59.02 2698 3363 52381 9349 99.9 1.370</p></blockquote><p></p>
[QUOTE="gbp, post: 257853, member: 6340"] Cartridge : .300 Rem SA Ultra Mag Bullet : .308, 208, Hornady A-MAX 30712 Useable Case Capaci: 68.011 grain H2O = 4.416 cm³ Cartridge O.A.L. L6: 3.005 inch = 76.33 mm Barrel Length : 26.0 inch = 660.4 mm Powder : Alliant Reloder-17 Predicted data by increasing and decreasing the given charge, incremented in steps of 2.0% 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 -20.0 72 47.22 2335 2518 34651 7821 99.3 1.658 -18.0 74 48.40 2385 2626 36839 7974 99.6 1.619 -16.0 75 49.58 2434 2736 39162 8113 99.9 1.572 -14.0 77 50.76 2483 2847 41619 8237 100.0 1.529 -12.0 79 51.94 2531 2958 44221 8347 100.0 1.487 -10.0 81 53.12 2578 3071 46981 8453 100.0 1.447 -08.0 83 54.30 2625 3183 49904 8557 100.0 1.409 -06.0 84 55.48 2672 3297 53008 8659 100.0 1.372 -04.0 86 56.66 2718 3411 56298 8759 100.0 1.336 ! Near Maximum ! -02.0 88 57.84 2763 3527 59793 8857 100.0 1.302 ! Near Maximum ! +00.0 90 59.02 2808 3643 63497 8952 100.0 1.269 ! Near Maximum ! +02.0 92 60.20 2853 3760 67446 9046 100.0 1.237 !DANGEROUS LOAD-DO NOT USE! +04.0 93 61.38 2898 3878 71612 9136 100.0 1.206 !DANGEROUS LOAD-DO NOT USE! +06.0 95 62.56 2942 3997 76025 9225 100.0 1.177 !DANGEROUS LOAD-DO NOT USE! +08.0 97 63.74 2986 4117 80711 9310 100.0 1.148 !DANGEROUS LOAD-DO NOT USE! +10.0 99 64.92 3030 4239 85689 9393 100.0 1.121 !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 90 59.02 2881 3833 75066 8679 100.0 1.194 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 90 59.02 2698 3363 52381 9349 99.9 1.370 [/QUOTE]
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Help with a start/stop load for RL 17/HV100
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