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Rifles, Reloading, Optics, Equipment
Reloading
280 ai speed
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<blockquote data-quote="Ridgerunner665" data-source="post: 979881" data-attributes="member: 12660"><p>[code]Cartridge : .280 Ack Imp</p><p>Bullet : .284, 140, Barnes 'TTSX'BT 28474</p><p>Useable Case Capaci: 65.489 grain H2O = 4.252 cm³</p><p>Cartridge O.A.L. L6: 3.340 inch = 84.84 mm</p><p>Barrel Length : 24.0 inch = 609.6 mm</p><p>Powder : IMR 7828 SSC</p><p></p><p>Predicted data by increasing and decreasing the given charge,</p><p>incremented in steps of 0.769% 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>-07.7 97 60.00 2934 2676 48475 11806 94.2 1.226</p><p>-06.9 98 60.50 2961 2726 49799 11913 94.6 1.210</p><p>-06.2 98 61.00 2988 2776 51157 12018 95.0 1.195</p><p>-05.4 99 61.50 3016 2827 52565 12119 95.4 1.180</p><p>-04.6 100 62.00 3043 2878 54013 12218 95.8 1.165</p><p>-03.8 101 62.50 3070 2930 55493 12313 96.2 1.151 ! Near Maximum !</p><p>-03.1 102 63.00 3097 2982 57048 12405 96.5 1.136 ! Near Maximum !</p><p>-02.3 102 63.50 3125 3035 58638 12493 96.9 1.122 ! Near Maximum !</p><p>-01.5 103 64.00 3152 3088 60280 12578 97.2 1.108 ! Near Maximum !</p><p>-00.8 104 64.50 3179 3142 61976 12659 97.5 1.094 ! Near Maximum !</p><p>+00.0 105 65.00 3207 3196 63727 12737 97.8 1.080 ! Near Maximum ! [/code]</p></blockquote><p></p>
[QUOTE="Ridgerunner665, post: 979881, member: 12660"] [code]Cartridge : .280 Ack Imp Bullet : .284, 140, Barnes 'TTSX'BT 28474 Useable Case Capaci: 65.489 grain H2O = 4.252 cm³ Cartridge O.A.L. L6: 3.340 inch = 84.84 mm Barrel Length : 24.0 inch = 609.6 mm Powder : IMR 7828 SSC Predicted data by increasing and decreasing the given charge, incremented in steps of 0.769% 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 -07.7 97 60.00 2934 2676 48475 11806 94.2 1.226 -06.9 98 60.50 2961 2726 49799 11913 94.6 1.210 -06.2 98 61.00 2988 2776 51157 12018 95.0 1.195 -05.4 99 61.50 3016 2827 52565 12119 95.4 1.180 -04.6 100 62.00 3043 2878 54013 12218 95.8 1.165 -03.8 101 62.50 3070 2930 55493 12313 96.2 1.151 ! Near Maximum ! -03.1 102 63.00 3097 2982 57048 12405 96.5 1.136 ! Near Maximum ! -02.3 102 63.50 3125 3035 58638 12493 96.9 1.122 ! Near Maximum ! -01.5 103 64.00 3152 3088 60280 12578 97.2 1.108 ! Near Maximum ! -00.8 104 64.50 3179 3142 61976 12659 97.5 1.094 ! Near Maximum ! +00.0 105 65.00 3207 3196 63727 12737 97.8 1.080 ! Near Maximum ! [/code] [/QUOTE]
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