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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm/08 AI velocity confirmation
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<blockquote data-quote="jimbires" data-source="post: 1760461" data-attributes="member: 11011"><p>I didn't see Varget make the list , I'm not sure why . here is varget info . this is as close as I could get to the 60191 PSI rating </p><p></p><p>7-08 AI </p><p></p><p>Cartridge : 7 mm-08 Ack. Imp. Rem.</p><p>Bullet : .284, 140, Nosler BalTip 28140</p><p>Useable Case Capaci: 50.645 grain H2O = 3.288 cm³</p><p>Cartridge O.A.L. L6: 2.800 inch = 71.12 mm</p><p>Barrel Length : 20.0 inch = 508.0 mm</p><p>Powder : Hodgdon VARGET</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 79 35.76 2264 1593 33103 8549 92.1 1.326</p><p>-18.0 81 36.65 2317 1668 35171 8806 93.1 1.294</p><p>-16.0 83 37.55 2369 1745 37361 9056 94.1 1.263</p><p>-14.0 85 38.44 2422 1823 39680 9297 95.0 1.226</p><p>-12.0 87 39.34 2474 1903 42137 9530 95.8 1.191</p><p>-10.0 89 40.23 2526 1984 44738 9753 96.6 1.158</p><p>-08.0 91 41.12 2578 2067 47495 9966 97.2 1.126</p><p>-06.0 93 42.02 2630 2151 50416 10168 97.8 1.095</p><p>-04.0 95 42.91 2682 2236 53513 10359 98.4 1.065 ! Near Maximum !</p><p>-02.0 97 43.81 2734 2323 56798 10537 98.8 1.036 ! Near Maximum !</p><p>+00.0 99 44.70 2785 2411 60284 10701 99.2 1.009 !DANGEROUS LOAD-DO NOT USE!</p><p>+02.0 101 45.59 2836 2501 63986 10852 99.5 0.982 !DANGEROUS LOAD-DO NOT USE!</p><p>+04.0 103 46.49 2887 2591 67919 10988 99.8 0.956 !DANGEROUS LOAD-DO NOT USE!</p><p>+06.0 105 47.38 2938 2683 72103 11109 99.9 0.931 !DANGEROUS LOAD-DO NOT USE!</p><p>+08.0 107 48.28 2988 2775 76556 11215 100.0 0.907 !DANGEROUS LOAD-DO NOT USE!</p><p>+10.0 109 49.17 3038 2869 81302 11305 100.0 0.884 !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 99 44.70 2891 2597 70262 10427 100.0 0.944 !DANGEROUS LOAD-DO NOT USE!</p><p>Data for burning rate decreased by 10% relative to nominal value:</p><p>-Ba 99 44.70 2639 2166 50445 10524 94.8 1.092</p><p></p><p></p><p></p><p> straight 7-08 </p><p></p><p></p><p>Cartridge : 7 mm-08 Rem.</p><p>Bullet : .284, 140, Nosler BalTip 28140</p><p>Useable Case Capaci: 47.350 grain H2O = 3.074 cm³</p><p>Cartridge O.A.L. L6: 2.800 inch = 71.12 mm</p><p>Barrel Length : 20.0 inch = 508.0 mm</p><p>Powder : Hodgdon VARGET</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 81 34.16 2230 1545 32790 8122 91.2 1.326</p><p>-18.0 83 35.01 2282 1619 34891 8370 92.3 1.294</p><p>-16.0 85 35.87 2334 1694 37098 8612 93.3 1.261</p><p>-14.0 87 36.72 2387 1771 39433 8847 94.2 1.226</p><p>-12.0 89 37.58 2439 1849 41910 9074 95.1 1.191</p><p>-10.0 91 38.43 2491 1929 44540 9292 95.9 1.157</p><p>-08.0 93 39.28 2543 2011 47331 9500 96.6 1.125</p><p>-06.0 95 40.14 2596 2094 50295 9699 97.3 1.093</p><p>-04.0 97 40.99 2647 2179 53445 9886 97.9 1.063 ! Near Maximum !</p><p>-02.0 99 41.85 2699 2265 56793 10062 98.4 1.034 ! Near Maximum !</p><p>+00.0 101 42.70 2751 2352 60355 10225 98.9 1.006 !DANGEROUS LOAD-DO NOT USE!</p><p>+02.0 103 43.55 2802 2441 64146 10375 99.3 0.979 !DANGEROUS LOAD-DO NOT USE!</p><p>+04.0 105 44.41 2853 2531 68186 10511 99.6 0.953 !DANGEROUS LOAD-DO NOT USE!</p><p>+06.0 107 45.26 2904 2622 72494 10633 99.8 0.928 !DANGEROUS LOAD-DO NOT USE!</p><p>+08.0 109 46.12 2955 2715 77093 10740 99.9 0.903 !DANGEROUS LOAD-DO NOT USE!</p><p>+10.0 111 46.97 3006 2808 82008 10831 100.0 0.880 !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 101 42.70 2859 2541 70554 9992 100.0 0.941 !DANGEROUS LOAD-DO NOT USE!</p><p>Data for burning rate decreased by 10% relative to nominal value:</p><p>-Ba 101 42.70 2603 2106 50350 10008 94.0 1.090</p></blockquote><p></p>
[QUOTE="jimbires, post: 1760461, member: 11011"] I didn't see Varget make the list , I'm not sure why . here is varget info . this is as close as I could get to the 60191 PSI rating 7-08 AI Cartridge : 7 mm-08 Ack. Imp. Rem. Bullet : .284, 140, Nosler BalTip 28140 Useable Case Capaci: 50.645 grain H2O = 3.288 cm³ Cartridge O.A.L. L6: 2.800 inch = 71.12 mm Barrel Length : 20.0 inch = 508.0 mm Powder : Hodgdon VARGET 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 79 35.76 2264 1593 33103 8549 92.1 1.326 -18.0 81 36.65 2317 1668 35171 8806 93.1 1.294 -16.0 83 37.55 2369 1745 37361 9056 94.1 1.263 -14.0 85 38.44 2422 1823 39680 9297 95.0 1.226 -12.0 87 39.34 2474 1903 42137 9530 95.8 1.191 -10.0 89 40.23 2526 1984 44738 9753 96.6 1.158 -08.0 91 41.12 2578 2067 47495 9966 97.2 1.126 -06.0 93 42.02 2630 2151 50416 10168 97.8 1.095 -04.0 95 42.91 2682 2236 53513 10359 98.4 1.065 ! Near Maximum ! -02.0 97 43.81 2734 2323 56798 10537 98.8 1.036 ! Near Maximum ! +00.0 99 44.70 2785 2411 60284 10701 99.2 1.009 !DANGEROUS LOAD-DO NOT USE! +02.0 101 45.59 2836 2501 63986 10852 99.5 0.982 !DANGEROUS LOAD-DO NOT USE! +04.0 103 46.49 2887 2591 67919 10988 99.8 0.956 !DANGEROUS LOAD-DO NOT USE! +06.0 105 47.38 2938 2683 72103 11109 99.9 0.931 !DANGEROUS LOAD-DO NOT USE! +08.0 107 48.28 2988 2775 76556 11215 100.0 0.907 !DANGEROUS LOAD-DO NOT USE! +10.0 109 49.17 3038 2869 81302 11305 100.0 0.884 !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 99 44.70 2891 2597 70262 10427 100.0 0.944 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 99 44.70 2639 2166 50445 10524 94.8 1.092 straight 7-08 Cartridge : 7 mm-08 Rem. Bullet : .284, 140, Nosler BalTip 28140 Useable Case Capaci: 47.350 grain H2O = 3.074 cm³ Cartridge O.A.L. L6: 2.800 inch = 71.12 mm Barrel Length : 20.0 inch = 508.0 mm Powder : Hodgdon VARGET 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 81 34.16 2230 1545 32790 8122 91.2 1.326 -18.0 83 35.01 2282 1619 34891 8370 92.3 1.294 -16.0 85 35.87 2334 1694 37098 8612 93.3 1.261 -14.0 87 36.72 2387 1771 39433 8847 94.2 1.226 -12.0 89 37.58 2439 1849 41910 9074 95.1 1.191 -10.0 91 38.43 2491 1929 44540 9292 95.9 1.157 -08.0 93 39.28 2543 2011 47331 9500 96.6 1.125 -06.0 95 40.14 2596 2094 50295 9699 97.3 1.093 -04.0 97 40.99 2647 2179 53445 9886 97.9 1.063 ! Near Maximum ! -02.0 99 41.85 2699 2265 56793 10062 98.4 1.034 ! Near Maximum ! +00.0 101 42.70 2751 2352 60355 10225 98.9 1.006 !DANGEROUS LOAD-DO NOT USE! +02.0 103 43.55 2802 2441 64146 10375 99.3 0.979 !DANGEROUS LOAD-DO NOT USE! +04.0 105 44.41 2853 2531 68186 10511 99.6 0.953 !DANGEROUS LOAD-DO NOT USE! +06.0 107 45.26 2904 2622 72494 10633 99.8 0.928 !DANGEROUS LOAD-DO NOT USE! +08.0 109 46.12 2955 2715 77093 10740 99.9 0.903 !DANGEROUS LOAD-DO NOT USE! +10.0 111 46.97 3006 2808 82008 10831 100.0 0.880 !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 101 42.70 2859 2541 70554 9992 100.0 0.941 !DANGEROUS LOAD-DO NOT USE! Data for burning rate decreased by 10% relative to nominal value: -Ba 101 42.70 2603 2106 50350 10008 94.0 1.090 [/QUOTE]
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7mm/08 AI velocity confirmation
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