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Rifles, Reloading, Optics, Equipment
Reloading
280 ai speed
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<blockquote data-quote="Ridgerunner665" data-source="post: 981746" data-attributes="member: 12660"><p>Or...</p><p></p><p>You could use a different powder...and get it done with less pressure.</p><p></p><p>Reloder 22, Reloder 25, Reloder 33, N570, N560, IMR 7828ssc, MRP....to name a few.</p><p></p><p></p><p>QuickLoads top 10 picks...</p><p></p><p>[code]Cartridge : .280 Ack Imp</p><p>Bullet : .284, 168, Berger Hunt VLD G7 #28501</p><p>Useable Case Capaci: 64.718 grain H2O = 4.202 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></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 114 %</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>43 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>Vihtavuori N570 112.2 70.5 4.57 3053 96.6 64000 14481 1.165 ! Near Maximum !</p><p>Alliant Reloder-33 112.3 73.6 4.77 3038 96.9 64000 14298 1.165 ! Near Maximum !</p><p>Norma MRP 2 111.3 66.4 4.30 2994 99.6 64000 13097 1.181 ! Near Maximum !</p><p>ADI AR 2218 114.0 72.4 4.69 2992 95.7 61298 14515 1.176 ! Near Maximum !</p><p>Alliant Reloder-25 109.0 64.7 4.19 2987 100.0 64000 12157 1.170 ! Near Maximum !</p><p>Norma MRP 100.9 62.8 4.07 2986 100.0 64000 12648 1.180 ! Near Maximum !</p><p>Vihtavuori N560 102.7 62.6 4.06 2985 99.0 64000 13086 1.174 ! Near Maximum !</p><p>Accurate MAGPRO 103.0 65.3 4.23 2978 98.1 64000 13201 1.181 ! Near Maximum !</p><p>IMR 7828 107.3 62.2 4.03 2974 99.3 64000 12649 1.164 ! Near Maximum !</p><p>IMR 7828 SSC 101.5 62.2 4.03 2974 99.3 64000 12649 1.164 ! Near Maximum ! [/code]</p></blockquote><p></p>
[QUOTE="Ridgerunner665, post: 981746, member: 12660"] Or... You could use a different powder...and get it done with less pressure. Reloder 22, Reloder 25, Reloder 33, N570, N560, IMR 7828ssc, MRP....to name a few. QuickLoads top 10 picks... [code]Cartridge : .280 Ack Imp Bullet : .284, 168, Berger Hunt VLD G7 #28501 Useable Case Capaci: 64.718 grain H2O = 4.202 cm³ Cartridge O.A.L. L6: 3.340 inch = 84.84 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 114 % 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 ! 43 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 --------------------------------- ----------------------------------------------------------------- Vihtavuori N570 112.2 70.5 4.57 3053 96.6 64000 14481 1.165 ! Near Maximum ! Alliant Reloder-33 112.3 73.6 4.77 3038 96.9 64000 14298 1.165 ! Near Maximum ! Norma MRP 2 111.3 66.4 4.30 2994 99.6 64000 13097 1.181 ! Near Maximum ! ADI AR 2218 114.0 72.4 4.69 2992 95.7 61298 14515 1.176 ! Near Maximum ! Alliant Reloder-25 109.0 64.7 4.19 2987 100.0 64000 12157 1.170 ! Near Maximum ! Norma MRP 100.9 62.8 4.07 2986 100.0 64000 12648 1.180 ! Near Maximum ! Vihtavuori N560 102.7 62.6 4.06 2985 99.0 64000 13086 1.174 ! Near Maximum ! Accurate MAGPRO 103.0 65.3 4.23 2978 98.1 64000 13201 1.181 ! Near Maximum ! IMR 7828 107.3 62.2 4.03 2974 99.3 64000 12649 1.164 ! Near Maximum ! IMR 7828 SSC 101.5 62.2 4.03 2974 99.3 64000 12649 1.164 ! Near Maximum ! [/code] [/QUOTE]
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