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Rifles, Reloading, Optics, Equipment
Reloading
.280 Remington
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<blockquote data-quote="gbp" data-source="post: 233415" data-attributes="member: 6340"><p>From QuickLoad</p><p>Cartridge : .280 Rem.</p><p>Bullet : .284, 145, Speer BTSP 1628</p><p>Cartridge O.A.L. L6: 3.330 inch or 84.58 mm</p><p>Barrel Length : 20.0 inch or 508.0 mm</p><p>Powder : IMR 4350</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 83 45.60 2296 1697 33073 10657 85.3 1.346</p><p>-18.0 85 46.74 2354 1783 35281 11032 86.6 1.310</p><p>-16.0 87 47.88 2412 1873 37607 11401 87.9 1.273</p><p>-14.0 89 49.02 2470 1965 40067 11764 89.2 1.234</p><p>-12.0 91 50.16 2529 2060 42686 12119 90.4 1.196</p><p>-10.0 94 51.30 2588 2157 45474 12464 91.5 1.160</p><p>-08.0 96 52.44 2647 2256 48443 12799 92.6 1.126</p><p>-06.0 98 53.58 2707 2359 51606 13123 93.6 1.092 ! Near Maximum !</p><p>-04.0 100 54.72 2766 2463 54979 13433 94.6 1.060 ! Near Maximum !</p><p>-02.0 102 55.86 2826 2570 58576 13729 95.4 1.028 !DANGEROUS LOAD-DO NOT USE!</p><p>+00.0 104 57.00 2885 2680 62416 14010 96.2 0.998 !DANGEROUS LOAD-DO NOT USE!</p><p>+02.0 106 58.14 2945 2792 66519 14274 97.0 0.969 !DANGEROUS LOAD-DO NOT USE!</p><p>+04.0 108 59.28 3004 2906 70907 14520 97.6 0.941 !DANGEROUS LOAD-DO NOT USE!</p><p>+06.0 110 60.42 3064 3023 75603 14747 98.2 0.914 !DANGEROUS LOAD-DO NOT USE!</p><p>+08.0 112 61.56 3124 3142 80637 14953 98.7 0.887 !DANGEROUS LOAD-DO NOT USE!</p><p>+10.0 114 62.70 3183 3263 86040 15137 99.1 0.862 !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 104 57.00 3026 2947 73508 14082 99.6 0.927 !DANGEROUS LOAD-DO NOT USE!</p><p>Data for burning rate decreased by 10% relative to nominal value:</p><p>-Ba 104 57.00 2705 2356 51601 13325 89.4 1.090 ! Near Maximum !</p></blockquote><p></p>
[QUOTE="gbp, post: 233415, member: 6340"] From QuickLoad Cartridge : .280 Rem. Bullet : .284, 145, Speer BTSP 1628 Cartridge O.A.L. L6: 3.330 inch or 84.58 mm Barrel Length : 20.0 inch or 508.0 mm Powder : IMR 4350 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 83 45.60 2296 1697 33073 10657 85.3 1.346 -18.0 85 46.74 2354 1783 35281 11032 86.6 1.310 -16.0 87 47.88 2412 1873 37607 11401 87.9 1.273 -14.0 89 49.02 2470 1965 40067 11764 89.2 1.234 -12.0 91 50.16 2529 2060 42686 12119 90.4 1.196 -10.0 94 51.30 2588 2157 45474 12464 91.5 1.160 -08.0 96 52.44 2647 2256 48443 12799 92.6 1.126 -06.0 98 53.58 2707 2359 51606 13123 93.6 1.092 ! Near Maximum ! -04.0 100 54.72 2766 2463 54979 13433 94.6 1.060 ! Near Maximum ! -02.0 102 55.86 2826 2570 58576 13729 95.4 1.028 !DANGEROUS LOAD-DO NOT USE! +00.0 104 57.00 2885 2680 62416 14010 96.2 0.998 !DANGEROUS LOAD-DO NOT USE! +02.0 106 58.14 2945 2792 66519 14274 97.0 0.969 !DANGEROUS LOAD-DO NOT USE! +04.0 108 59.28 3004 2906 70907 14520 97.6 0.941 !DANGEROUS LOAD-DO NOT USE! +06.0 110 60.42 3064 3023 75603 14747 98.2 0.914 !DANGEROUS LOAD-DO NOT USE! +08.0 112 61.56 3124 3142 80637 14953 98.7 0.887 !DANGEROUS LOAD-DO NOT USE! +10.0 114 62.70 3183 3263 86040 15137 99.1 0.862 !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 104 57.00 3026 2947 73508 14082 99.6 0.927 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 104 57.00 2705 2356 51601 13325 89.4 1.090 ! Near Maximum ! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
.280 Remington
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