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Rifles, Reloading, Optics, Equipment
Reloading
7WSM with H4831SC & H1000 & Retumbo
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<blockquote data-quote="jmason" data-source="post: 282440" data-attributes="member: 10486"><p>Cartridge : 7 mm WSM</p><p>Bullet : .284, 168, Berger VLD</p><p>Cartridge O.A.L. L6: 2.860 inch or 72.64 mm</p><p>Barrel Length : 26.0 inch or 660.4 mm</p><p>Powder : Hodgdon H4831 SC</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 76 50.40 2321 2010 29600 8636 89.4 1.769</p><p>-18.0 78 51.66 2378 2109 31530 8917 90.6 1.723</p><p>-16.0 79 52.92 2435 2211 33583 9191 91.8 1.678</p><p>-14.0 81 54.18 2492 2316 35772 9457 92.9 1.636</p><p>-12.0 83 55.44 2549 2423 38105 9714 93.9 1.591</p><p>-10.0 85 56.70 2606 2533 40592 9961 94.9 1.543</p><p>-08.0 87 57.96 2663 2645 43241 10197 95.8 1.498</p><p>-06.0 89 59.22 2720 2760 46073 10421 96.6 1.455</p><p>-04.0 91 60.48 2777 2876 49068 10632 97.3 1.413</p><p>-02.0 93 61.74 2834 2995 52247 10829 97.9 1.373</p><p>+00.0 95 63.00 2890 3116 55636 11011 98.5 1.334 ! Near Maximum !</p><p>+02.0 97 64.26 2947 3239 59253 11178 99.0 1.296 ! Near Maximum !</p><p>+04.0 98 65.52 3003 3365 63117 11328 99.3 1.260 ! Near Maximum !</p><p>+06.0 100 66.78 3059 3492 67247 11460 99.6 1.225 !DANGEROUS LOAD-DO NOT USE!</p><p>+08.0 102 68.04 3115 3620 71667 11575 99.8 1.191 !DANGEROUS LOAD-DO NOT USE!</p><p>+10.0 104 69.30 3171 3751 76403 11670 100.0 1.158 !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 95 63.00 3019 3399 65990 10786 100.0 1.240 !DANGEROUS LOAD-DO NOT USE!</p><p>Data for burning rate decreased by 10% relative to nominal value:</p><p>-Ba 95 63.00 2717 2754 45552 10687 92.8 1.457</p></blockquote><p></p>
[QUOTE="jmason, post: 282440, member: 10486"] Cartridge : 7 mm WSM Bullet : .284, 168, Berger VLD Cartridge O.A.L. L6: 2.860 inch or 72.64 mm Barrel Length : 26.0 inch or 660.4 mm Powder : Hodgdon H4831 SC 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 76 50.40 2321 2010 29600 8636 89.4 1.769 -18.0 78 51.66 2378 2109 31530 8917 90.6 1.723 -16.0 79 52.92 2435 2211 33583 9191 91.8 1.678 -14.0 81 54.18 2492 2316 35772 9457 92.9 1.636 -12.0 83 55.44 2549 2423 38105 9714 93.9 1.591 -10.0 85 56.70 2606 2533 40592 9961 94.9 1.543 -08.0 87 57.96 2663 2645 43241 10197 95.8 1.498 -06.0 89 59.22 2720 2760 46073 10421 96.6 1.455 -04.0 91 60.48 2777 2876 49068 10632 97.3 1.413 -02.0 93 61.74 2834 2995 52247 10829 97.9 1.373 +00.0 95 63.00 2890 3116 55636 11011 98.5 1.334 ! Near Maximum ! +02.0 97 64.26 2947 3239 59253 11178 99.0 1.296 ! Near Maximum ! +04.0 98 65.52 3003 3365 63117 11328 99.3 1.260 ! Near Maximum ! +06.0 100 66.78 3059 3492 67247 11460 99.6 1.225 !DANGEROUS LOAD-DO NOT USE! +08.0 102 68.04 3115 3620 71667 11575 99.8 1.191 !DANGEROUS LOAD-DO NOT USE! +10.0 104 69.30 3171 3751 76403 11670 100.0 1.158 !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 95 63.00 3019 3399 65990 10786 100.0 1.240 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 95 63.00 2717 2754 45552 10687 92.8 1.457 [/QUOTE]
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Reloading
7WSM with H4831SC & H1000 & Retumbo
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