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Rifles, Reloading, Optics, Equipment
Reloading
7 twist 3.50" COL 270 winchester quickload request
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<blockquote data-quote="assasinator" data-source="post: 2943744" data-attributes="member: 127853"><p>Cartridge : .270 Win. (SAAMI)</p><p>Bullet : .277, 150, Nosler Accubond LR 58836</p><p>Useable Case Capaci: 60.976 grain H2O = 3.959 cm³</p><p>Cartridge O.A.L. L6: 3.500 inch = 88.90 mm</p><p>Barrel Length : 27.0 inch = 685.8 mm</p><p>Powder : Accurate MAGPRO</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 49.60 2272 1720 23222 8524 80.8 1.907</p><p>-18.0 85 50.84 2346 1834 25231 8885 82.9 1.834</p><p>-16.0 87 52.08 2421 1952 27404 9235 84.8 1.764</p><p>-14.0 89 53.32 2495 2073 29756 9574 86.7 1.697</p><p>-12.0 91 54.56 2570 2199 32303 9900 88.4 1.633</p><p>-10.0 93 55.80 2644 2328 35062 10210 90.0 1.573</p><p>-08.0 95 57.04 2718 2461 38057 10504 91.5 1.515</p><p>-06.0 98 58.28 2793 2598 41309 10781 92.9 1.460</p><p>-04.0 100 59.52 2867 2737 44843 11037 94.2 1.407</p><p>-02.0 102 60.76 2941 2881 48694 11273 95.4 1.356</p><p>+00.0 104 62.00 3015 3027 52893 11486 96.4 1.308</p><p>+02.0 106 63.24 3088 3176 57479 11676 97.3 1.261 ! Near Maximum !</p><p>+04.0 108 64.48 3161 3329 62466 11840 98.1 1.217 ! Near Maximum !</p><p>+06.0 110 65.72 3234 3484 67897 11978 98.7 1.174 !DANGEROUS LOAD-DO NOT USE!</p><p>+08.0 112 66.96 3307 3642 73824 12089 99.2 1.133 !DANGEROUS LOAD-DO NOT USE!</p><p>+10.0 114 68.20 3379 3803 80305 12170 99.6 1.094 !DANGEROUS LOAD-DO NOT USE!</p><p></p><p>these closely match what i saw at the range.</p><p></p><p></p><p>i also ran the numbers in a variety of ways. ordered retumbo. only wasted 45.00. i'll use it for other things.</p></blockquote><p></p>
[QUOTE="assasinator, post: 2943744, member: 127853"] Cartridge : .270 Win. (SAAMI) Bullet : .277, 150, Nosler Accubond LR 58836 Useable Case Capaci: 60.976 grain H2O = 3.959 cm³ Cartridge O.A.L. L6: 3.500 inch = 88.90 mm Barrel Length : 27.0 inch = 685.8 mm Powder : Accurate MAGPRO 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 49.60 2272 1720 23222 8524 80.8 1.907 -18.0 85 50.84 2346 1834 25231 8885 82.9 1.834 -16.0 87 52.08 2421 1952 27404 9235 84.8 1.764 -14.0 89 53.32 2495 2073 29756 9574 86.7 1.697 -12.0 91 54.56 2570 2199 32303 9900 88.4 1.633 -10.0 93 55.80 2644 2328 35062 10210 90.0 1.573 -08.0 95 57.04 2718 2461 38057 10504 91.5 1.515 -06.0 98 58.28 2793 2598 41309 10781 92.9 1.460 -04.0 100 59.52 2867 2737 44843 11037 94.2 1.407 -02.0 102 60.76 2941 2881 48694 11273 95.4 1.356 +00.0 104 62.00 3015 3027 52893 11486 96.4 1.308 +02.0 106 63.24 3088 3176 57479 11676 97.3 1.261 ! Near Maximum ! +04.0 108 64.48 3161 3329 62466 11840 98.1 1.217 ! Near Maximum ! +06.0 110 65.72 3234 3484 67897 11978 98.7 1.174 !DANGEROUS LOAD-DO NOT USE! +08.0 112 66.96 3307 3642 73824 12089 99.2 1.133 !DANGEROUS LOAD-DO NOT USE! +10.0 114 68.20 3379 3803 80305 12170 99.6 1.094 !DANGEROUS LOAD-DO NOT USE! these closely match what i saw at the range. i also ran the numbers in a variety of ways. ordered retumbo. only wasted 45.00. i'll use it for other things. [/QUOTE]
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7 twist 3.50" COL 270 winchester quickload request
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