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Rifles, Reloading, Optics, Equipment
Reloading
270 win reloading help - 150gr partitions
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<blockquote data-quote="jeremy.b" data-source="post: 1677670" data-attributes="member: 108117"><p>From my experience, you're probably sneaking up on the top-end of 4831SC with 150's at that velocity, depending on barrel length.</p><p></p><p>If it were me at this point id' probably play with seating depth at 58.5 for now in 1-2 tenth increments.</p><p></p><p>Another option would be to stick with your current seating depth and try slower powders RL26 (if you have some), 7828, etc. This would let you have a bit more headroom on the velocity department to either expand your current velocity node or find another one.</p><p></p><p>For reference (and assuming that you have a 26" barrel) here's a Quickload run with SAAMI specs if you consider trying other powders:</p><p></p><p>[code]</p><p>Cartridge : .270 Win. (SAAMI)</p><p>Bullet : .277, 150, Nosler PART SP 16323</p><p>Useable Case Capaci: 60.142 grain H2O = 3.905 cm³</p><p>Cartridge O.A.L. L6: 3.340 inch = 84.84 mm</p><p>Barrel Length : 26.0 inch = 660.4 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 108 %</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>68 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>ReloadSwiss RS 76 *C*T 108.0 64.4 4.18 3152 100.0 58933 11850 1.221 ! Near Maximum !</p><p>Alliant Reloder-26 *C 102.9 61.3 3.97 3146 100.0 64000 11328 1.190 ! Near Maximum !</p><p>Norma MRP *C 103.8 60.0 3.89 3123 100.0 64000 11489 1.189 ! Near Maximum !</p><p>Vihtavuori N560 *C 105.5 59.8 3.87 3117 98.7 64000 11838 1.185 ! Near Maximum !</p><p>ReloadSwiss RS 70 *C 100.5 59.4 3.85 3110 100.0 64000 11114 1.177 ! Near Maximum !</p><p>Accurate MAGPRO 105.8 62.3 4.04 3107 97.7 64000 11911 1.192 ! Near Maximum !</p><p>IMR 7828 SSC 104.1 59.3 3.84 3101 99.0 64000 11424 1.177 ! Near Maximum !</p><p>Alliant Reloder-22 *C 105.8 59.3 3.84 3092 99.7 64000 11355 1.192 ! Near Maximum !</p><p>ADI AR 2213 105.0 58.9 3.81 3085 98.9 64000 11335 1.176 ! Near Maximum !</p><p>ReloadSwiss RS 60 *T 94.2 54.8 3.55 3078 100.0 64000 10190 1.185 ! Near Maximum !</p><p>Winchester WXR 108.0 59.2 3.84 3072 99.5 62707 11336 1.203 ! Near Maximum !</p><p>Ramshot Magnum 105.4 63.6 4.12 3069 99.9 64000 10796 1.184 ! Near Maximum !</p><p>Alliant Reloder-17 *T 93.1 54.1 3.51 3053 100.0 64000 10118 1.194 ! Near Maximum !</p><p>Alliant Reloder-16 *C *T 98.2 53.0 3.43 3053 100.0 64000 10106 1.186 ! Near Maximum !</p><p>ADI AP 2214 108.0 62.2 4.03 3047 98.9 62101 11105 1.190 ! Near Maximum !</p><p>ADI AR 2209 101.9 56.2 3.64 3046 99.6 64000 10756 1.184 ! Near Maximum !</p><p>Alliant Reloder-19 *C 102.5 56.8 3.68 3044 99.6 64000 10822 1.192 ! Near Maximum !</p><p>Alliant Reloder-23 *C *T 108.0 58.6 3.80 3043 100.0 63114 10181 1.206 ! Near Maximum !</p><p>IMR 7828 108.0 58.2 3.77 3040 98.5 59878 11288 1.212 ! Near Maximum !</p><p>Ramshot Hunter 98.0 56.1 3.63 3036 100.0 64000 10410 1.198 ! Near Maximum !</p><p>ReloadSwiss RS 62 96.5 56.1 3.63 3035 100.0 64000 10192 1.210 ! Near Maximum !</p><p>Hodgdon H414 92.5 54.3 3.52 3034 100.0 64000 10456 1.200 ! Near Maximum !</p><p>Winchester 760 92.5 54.3 3.52 3034 100.0 64000 10456 1.200 ! Near Maximum !</p><p>Vihtavuori N565 *C 108.0 61.5 3.99 3022 98.2 58794 11527 1.250 ! Near Maximum !</p><p>Norma 204 *C 97.2 55.6 3.61 3019 99.5 64000 10542 1.193 ! Near Maximum !</p><p>Hodgdon H4831 SC *T 103.6 58.1 3.76 3018 98.4 64000 10691 1.190 ! Near Maximum !</p><p>[/code]</p></blockquote><p></p>
[QUOTE="jeremy.b, post: 1677670, member: 108117"] From my experience, you're probably sneaking up on the top-end of 4831SC with 150's at that velocity, depending on barrel length. If it were me at this point id' probably play with seating depth at 58.5 for now in 1-2 tenth increments. Another option would be to stick with your current seating depth and try slower powders RL26 (if you have some), 7828, etc. This would let you have a bit more headroom on the velocity department to either expand your current velocity node or find another one. For reference (and assuming that you have a 26" barrel) here's a Quickload run with SAAMI specs if you consider trying other powders: [code] Cartridge : .270 Win. (SAAMI) Bullet : .277, 150, Nosler PART SP 16323 Useable Case Capaci: 60.142 grain H2O = 3.905 cm³ Cartridge O.A.L. L6: 3.340 inch = 84.84 mm Barrel Length : 26.0 inch = 660.4 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 108 % 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 ! 68 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 --------------------------------- ----------------------------------------------------------------- ReloadSwiss RS 76 *C*T 108.0 64.4 4.18 3152 100.0 58933 11850 1.221 ! Near Maximum ! Alliant Reloder-26 *C 102.9 61.3 3.97 3146 100.0 64000 11328 1.190 ! Near Maximum ! Norma MRP *C 103.8 60.0 3.89 3123 100.0 64000 11489 1.189 ! Near Maximum ! Vihtavuori N560 *C 105.5 59.8 3.87 3117 98.7 64000 11838 1.185 ! Near Maximum ! ReloadSwiss RS 70 *C 100.5 59.4 3.85 3110 100.0 64000 11114 1.177 ! Near Maximum ! Accurate MAGPRO 105.8 62.3 4.04 3107 97.7 64000 11911 1.192 ! Near Maximum ! IMR 7828 SSC 104.1 59.3 3.84 3101 99.0 64000 11424 1.177 ! Near Maximum ! Alliant Reloder-22 *C 105.8 59.3 3.84 3092 99.7 64000 11355 1.192 ! Near Maximum ! ADI AR 2213 105.0 58.9 3.81 3085 98.9 64000 11335 1.176 ! Near Maximum ! ReloadSwiss RS 60 *T 94.2 54.8 3.55 3078 100.0 64000 10190 1.185 ! Near Maximum ! Winchester WXR 108.0 59.2 3.84 3072 99.5 62707 11336 1.203 ! Near Maximum ! Ramshot Magnum 105.4 63.6 4.12 3069 99.9 64000 10796 1.184 ! Near Maximum ! Alliant Reloder-17 *T 93.1 54.1 3.51 3053 100.0 64000 10118 1.194 ! Near Maximum ! Alliant Reloder-16 *C *T 98.2 53.0 3.43 3053 100.0 64000 10106 1.186 ! Near Maximum ! ADI AP 2214 108.0 62.2 4.03 3047 98.9 62101 11105 1.190 ! Near Maximum ! ADI AR 2209 101.9 56.2 3.64 3046 99.6 64000 10756 1.184 ! Near Maximum ! Alliant Reloder-19 *C 102.5 56.8 3.68 3044 99.6 64000 10822 1.192 ! Near Maximum ! Alliant Reloder-23 *C *T 108.0 58.6 3.80 3043 100.0 63114 10181 1.206 ! Near Maximum ! IMR 7828 108.0 58.2 3.77 3040 98.5 59878 11288 1.212 ! Near Maximum ! Ramshot Hunter 98.0 56.1 3.63 3036 100.0 64000 10410 1.198 ! Near Maximum ! ReloadSwiss RS 62 96.5 56.1 3.63 3035 100.0 64000 10192 1.210 ! Near Maximum ! Hodgdon H414 92.5 54.3 3.52 3034 100.0 64000 10456 1.200 ! Near Maximum ! Winchester 760 92.5 54.3 3.52 3034 100.0 64000 10456 1.200 ! Near Maximum ! Vihtavuori N565 *C 108.0 61.5 3.99 3022 98.2 58794 11527 1.250 ! Near Maximum ! Norma 204 *C 97.2 55.6 3.61 3019 99.5 64000 10542 1.193 ! Near Maximum ! Hodgdon H4831 SC *T 103.6 58.1 3.76 3018 98.4 64000 10691 1.190 ! Near Maximum ! [/code] [/QUOTE]
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270 win reloading help - 150gr partitions
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