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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Cooper 280AI Chamber question.
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<blockquote data-quote="Ridgerunner665" data-source="post: 1001146" data-attributes="member: 12660"><p>[code]Cartridge : .280 Ack Imp Nosler brass</p><p>Bullet : .284, 168, Berger Hunt VLD G7 #28501</p><p>Useable Case Capaci: 63.212 grain H2O = 4.104 cm³</p><p>Cartridge O.A.L. L6: 3.244 inch = 82.40 mm</p><p>Barrel Length : 24.0 inch = 609.6 mm</p><p></p><p>Predicted Data for Indicated Charges of the Following Powders.</p><p>Matching Maximum Pressure: 64000 psi, or 441 MPa</p><p>or a maximum loading ratio or filling of 107 %</p><p>These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.</p><p>C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested</p><p>loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand</p><p>that all of the listed powders can be unsuitable for the given combination of cartridge, bullet</p><p>and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.</p><p>USE ONLY FOR COMPARISON !</p><p></p><p>57 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.</p><p>Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time</p><p> % Grains Gramm fps % psi psi ms</p><p>--------------------------------- -----------------------------------------------------------------</p><p>Norma MRP 101.8 61.9 4.01 2979 100.0 64000 12419 1.180 ! Near Maximum !</p><p>Vihtavuori N560 103.6 61.7 4.00 2977 98.9 64000 12830 1.175 ! Near Maximum !</p><p>Accurate MAGPRO 103.8 64.3 4.17 2969 97.9 64000 12935 1.181 ! Near Maximum !</p><p>IMR 7828 SSC 102.3 61.2 3.97 2965 99.2 64000 12396 1.165 ! Near Maximum !</p><p>Alliant Reloder-22 103.8 61.2 3.96 2952 99.8 64000 12290 1.181 ! Near Maximum !</p><p>Winchester WXR 106.6 61.5 3.98 2951 99.7 64000 12312 1.181 ! Near Maximum !</p><p>ADI AR 2213 103.3 60.8 3.94 2951 99.1 64000 12298 1.164 ! Near Maximum !</p><p>ADI AP 2214 107.0 64.7 4.19 2942 99.3 63745 12118 1.163 ! Near Maximum !</p><p>Ramshot Magnum 103.6 65.7 4.26 2934 100.0 64000 11714 1.173 ! Near Maximum !</p><p>IMR 7828 107.0 60.6 3.93 2933 99.0 61718 12315 1.184 ! Near Maximum !</p><p>Alliant Reloder-17 91.3 55.8 3.62 2910 100.0 64000 10928 1.184 ! Near Maximum !</p><p>ADI AR 2209 100.1 58.0 3.76 2910 99.7 64000 11646 1.172 ! Near Maximum !</p><p>Alliant Reloder-19 100.7 58.7 3.80 2908 99.7 64000 11714 1.180 ! Near Maximum !</p><p>Alliant Reloder-25 107.0 62.0 4.02 2902 100.0 58156 11813 1.220 ! Near Maximum !</p><p>Ramshot Hunter 96.2 57.9 3.75 2897 100.0 64000 11249 1.187 ! Near Maximum !</p><p>Hodgdon H414 90.8 56.0 3.63 2896 100.0 64000 11299 1.188 ! Near Maximum !</p><p>Winchester 760 90.8 56.0 3.63 2896 100.0 64000 11299 1.188 ! Near Maximum !</p><p>Hodgdon H4831 105.9 60.0 3.89 2885 98.6 64000 11604 1.177 ! Near Maximum !</p><p>Hodgdon H4831 SC 101.8 60.0 3.89 2885 98.6 64000 11604 1.177 ! Near Maximum !</p><p>Norma 204 95.5 57.5 3.72 2884 99.6 64000 11416 1.181 ! Near Maximum !</p><p>Vihtavuori N550 93.0 55.4 3.59 2873 100.0 64000 10897 1.198 ! Near Maximum !</p><p>Norma URP 95.7 55.2 3.57 2872 100.0 64000 10754 1.194 ! Near Maximum !</p><p>Accurate 4350 94.8 55.2 3.58 2867 100.0 64000 10700 1.211 ! Near Maximum !</p><p>Winchester Supreme 780 99.2 61.0 3.95 2862 99.6 64000 11134 1.185 ! Near Maximum !</p><p>Vihtavuori N165 106.1 61.2 3.96 2856 99.9 64000 10907 1.190 ! Near Maximum !</p><p>Accurate 3100 103.9 60.5 3.92 2855 100.0 64000 10778 1.214 ! Near Maximum !</p><p>IMR 4831 100.4 56.0 3.63 2854 100.0 64000 10517 1.203 ! Near Maximum !</p><p>Hodgdon H4350 98.2 56.0 3.63 2845 99.9 64000 10756 1.186 ! Near Maximum !</p><p>IMR 4350 96.4 55.9 3.62 2844 99.9 64000 10731 1.186 ! Near Maximum !</p><p>Vihtavuori N160 106.2 59.3 3.84 2841 99.0 64000 10965 1.185 ! Near Maximum !</p><p>Vihtavuori N570 107.0 65.7 4.26 2837 93.2 51474 13393 1.288</p><p>Norma MRP 2 107.0 62.4 4.04 2833 98.3 53427 12448 1.280</p><p>Hodgdon Hybrid 100V 98.2 55.4 3.59 2827 100.0 64000 9912 1.196 ! Near Maximum !</p><p>IMR 4007 SSC 90.5 53.5 3.47 2825 99.9 64000 10601 1.195 ! Near Maximum !</p><p>Alliant Reloder-33 107.0 68.5 4.44 2807 93.3 50521 13200 1.300</p><p>Hodgdon VARGET 90.2 50.9 3.30 2803 100.0 64000 9920 1.188 ! Near Maximum !</p><p>IMR 4064 90.6 49.9 3.23 2793 100.0 64000 9714 1.193 ! Near Maximum !</p><p>Accurate 2700 90.7 55.2 3.57 2780 99.9 64000 10029 1.199 ! Near Maximum !</p><p>Hodgdon H1000 107.0 61.7 4.00 2774 97.7 52810 11670 1.268</p><p>ADI AR 2217 107.0 61.7 4.00 2774 97.7 52810 11670 1.268</p><p>Vihtavuori N150 96.0 52.8 3.42 2763 100.0 64000 9376 1.208 ! Near Maximum !</p><p>Hodgdon Retumbo 107.0 62.7 4.06 2727 99.1 46185 12159 1.351</p><p>ADI AR 2225 107.0 62.7 4.06 2727 99.1 46185 12159 1.351</p><p>Vihtavuori N135 92.2 48.7 3.16 2711 100.0 64000 8657 1.221 ! Near Maximum !</p><p>ADI AR 2218 107.0 66.4 4.30 2689 89.5 45956 12917 1.351</p><p>Vihtavuori 24N41 107.0 66.4 4.30 2653 84.9 48662 11478 1.327</p><p>Norma 217 107.0 61.4 3.98 2637 97.2 40680 12174 1.446</p><p>Vihtavuori N170 107.0 61.7 4.00 2623 90.4 48222 11002 1.363</p><p>Hodgdon H870 107.0 64.4 4.17 2610 91.3 40985 12180 1.439</p><p>Alliant Reloder-50 107.0 67.4 4.37 2567 87.4 38314 12385 1.498</p><p>Hodgdon US 869 107.0 66.4 4.30 2470 80.6 39471 10667 1.472</p><p>Hodgdon 50BMG 107.0 63.3 4.10 2469 76.4 39728 10613 1.466</p><p>Accurate 8700 107.0 65.1 4.22 2393 83.7 35504 10437 1.538</p><p>Vihtavuori 20N29 107.0 67.1 4.35 2369 80.2 34093 10470 1.570 [/code]</p></blockquote><p></p>
[QUOTE="Ridgerunner665, post: 1001146, member: 12660"] [code]Cartridge : .280 Ack Imp Nosler brass Bullet : .284, 168, Berger Hunt VLD G7 #28501 Useable Case Capaci: 63.212 grain H2O = 4.104 cm³ Cartridge O.A.L. L6: 3.244 inch = 82.40 mm Barrel Length : 24.0 inch = 609.6 mm Predicted Data for Indicated Charges of the Following Powders. Matching Maximum Pressure: 64000 psi, or 441 MPa or a maximum loading ratio or filling of 107 % These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window. C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand that all of the listed powders can be unsuitable for the given combination of cartridge, bullet and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations. USE ONLY FOR COMPARISON ! 57 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped. Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time % Grains Gramm fps % psi psi ms --------------------------------- ----------------------------------------------------------------- Norma MRP 101.8 61.9 4.01 2979 100.0 64000 12419 1.180 ! Near Maximum ! Vihtavuori N560 103.6 61.7 4.00 2977 98.9 64000 12830 1.175 ! Near Maximum ! Accurate MAGPRO 103.8 64.3 4.17 2969 97.9 64000 12935 1.181 ! Near Maximum ! IMR 7828 SSC 102.3 61.2 3.97 2965 99.2 64000 12396 1.165 ! Near Maximum ! Alliant Reloder-22 103.8 61.2 3.96 2952 99.8 64000 12290 1.181 ! Near Maximum ! Winchester WXR 106.6 61.5 3.98 2951 99.7 64000 12312 1.181 ! Near Maximum ! ADI AR 2213 103.3 60.8 3.94 2951 99.1 64000 12298 1.164 ! Near Maximum ! ADI AP 2214 107.0 64.7 4.19 2942 99.3 63745 12118 1.163 ! Near Maximum ! Ramshot Magnum 103.6 65.7 4.26 2934 100.0 64000 11714 1.173 ! Near Maximum ! IMR 7828 107.0 60.6 3.93 2933 99.0 61718 12315 1.184 ! Near Maximum ! Alliant Reloder-17 91.3 55.8 3.62 2910 100.0 64000 10928 1.184 ! Near Maximum ! ADI AR 2209 100.1 58.0 3.76 2910 99.7 64000 11646 1.172 ! Near Maximum ! Alliant Reloder-19 100.7 58.7 3.80 2908 99.7 64000 11714 1.180 ! Near Maximum ! Alliant Reloder-25 107.0 62.0 4.02 2902 100.0 58156 11813 1.220 ! Near Maximum ! Ramshot Hunter 96.2 57.9 3.75 2897 100.0 64000 11249 1.187 ! Near Maximum ! Hodgdon H414 90.8 56.0 3.63 2896 100.0 64000 11299 1.188 ! Near Maximum ! Winchester 760 90.8 56.0 3.63 2896 100.0 64000 11299 1.188 ! Near Maximum ! Hodgdon H4831 105.9 60.0 3.89 2885 98.6 64000 11604 1.177 ! Near Maximum ! Hodgdon H4831 SC 101.8 60.0 3.89 2885 98.6 64000 11604 1.177 ! Near Maximum ! Norma 204 95.5 57.5 3.72 2884 99.6 64000 11416 1.181 ! Near Maximum ! Vihtavuori N550 93.0 55.4 3.59 2873 100.0 64000 10897 1.198 ! Near Maximum ! Norma URP 95.7 55.2 3.57 2872 100.0 64000 10754 1.194 ! Near Maximum ! Accurate 4350 94.8 55.2 3.58 2867 100.0 64000 10700 1.211 ! Near Maximum ! Winchester Supreme 780 99.2 61.0 3.95 2862 99.6 64000 11134 1.185 ! Near Maximum ! Vihtavuori N165 106.1 61.2 3.96 2856 99.9 64000 10907 1.190 ! Near Maximum ! Accurate 3100 103.9 60.5 3.92 2855 100.0 64000 10778 1.214 ! Near Maximum ! IMR 4831 100.4 56.0 3.63 2854 100.0 64000 10517 1.203 ! Near Maximum ! Hodgdon H4350 98.2 56.0 3.63 2845 99.9 64000 10756 1.186 ! Near Maximum ! IMR 4350 96.4 55.9 3.62 2844 99.9 64000 10731 1.186 ! Near Maximum ! Vihtavuori N160 106.2 59.3 3.84 2841 99.0 64000 10965 1.185 ! Near Maximum ! Vihtavuori N570 107.0 65.7 4.26 2837 93.2 51474 13393 1.288 Norma MRP 2 107.0 62.4 4.04 2833 98.3 53427 12448 1.280 Hodgdon Hybrid 100V 98.2 55.4 3.59 2827 100.0 64000 9912 1.196 ! Near Maximum ! IMR 4007 SSC 90.5 53.5 3.47 2825 99.9 64000 10601 1.195 ! Near Maximum ! Alliant Reloder-33 107.0 68.5 4.44 2807 93.3 50521 13200 1.300 Hodgdon VARGET 90.2 50.9 3.30 2803 100.0 64000 9920 1.188 ! Near Maximum ! IMR 4064 90.6 49.9 3.23 2793 100.0 64000 9714 1.193 ! Near Maximum ! Accurate 2700 90.7 55.2 3.57 2780 99.9 64000 10029 1.199 ! Near Maximum ! Hodgdon H1000 107.0 61.7 4.00 2774 97.7 52810 11670 1.268 ADI AR 2217 107.0 61.7 4.00 2774 97.7 52810 11670 1.268 Vihtavuori N150 96.0 52.8 3.42 2763 100.0 64000 9376 1.208 ! Near Maximum ! Hodgdon Retumbo 107.0 62.7 4.06 2727 99.1 46185 12159 1.351 ADI AR 2225 107.0 62.7 4.06 2727 99.1 46185 12159 1.351 Vihtavuori N135 92.2 48.7 3.16 2711 100.0 64000 8657 1.221 ! Near Maximum ! ADI AR 2218 107.0 66.4 4.30 2689 89.5 45956 12917 1.351 Vihtavuori 24N41 107.0 66.4 4.30 2653 84.9 48662 11478 1.327 Norma 217 107.0 61.4 3.98 2637 97.2 40680 12174 1.446 Vihtavuori N170 107.0 61.7 4.00 2623 90.4 48222 11002 1.363 Hodgdon H870 107.0 64.4 4.17 2610 91.3 40985 12180 1.439 Alliant Reloder-50 107.0 67.4 4.37 2567 87.4 38314 12385 1.498 Hodgdon US 869 107.0 66.4 4.30 2470 80.6 39471 10667 1.472 Hodgdon 50BMG 107.0 63.3 4.10 2469 76.4 39728 10613 1.466 Accurate 8700 107.0 65.1 4.22 2393 83.7 35504 10437 1.538 Vihtavuori 20N29 107.0 67.1 4.35 2369 80.2 34093 10470 1.570 [/code] [/QUOTE]
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