Bullet. I noticed in an old post about you having a 257wby in accumark. I have the same rifle and am currently working on some loads with 100grTTSX. What powders did you have success with? I have started with Ramshot Magnum and Fed 215M norma brass. Any tips? Thanks
Hey bullet! Was wondering about some 257wby loads
- Thread starter CAhunter
- Start date
- Oct 30, 2004
- 24,399
- 3,336
Reloader 25 retumbo IMR 7828.
Enjoy!
Cartridge : .257 Weath. Mag
Bullet : .257, 100, Barnes 'TSX'BT 25742
Cartridge O.A.L. L6: 3.170 inch or 80.52 mm
Barrel Length : 26.0 inch or 660.4 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 63500 psi, or 437 MPa
or a maximum loading ratio or filling of 105 %
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 !
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Vihtavuori N570 103.5 78.1 5.06 3674 97.0 63500 16059 1.139 ! Near Maximum !
Vihtavuori N560 95.2 69.6 4.51 3619 99.2 63500 14677 1.133 ! Near Maximum !
IMR 7828 99.6 69.2 4.49 3613 99.5 63500 14258 1.122 ! Near Maximum !
IMR 7828 SSC 94.2 69.2 4.49 3613 99.5 63500 14258 1.122 ! Near Maximum !
Ramshot Magnum (Big Boy) 97.4 74.6 4.84 3612 99.7 63500 14344 1.134 ! Near Maximum !
Norma MRP 2 102.7 73.5 4.76 3612 99.7 63500 14570 1.147 ! Near Maximum !
Norma MRP 93.3 69.6 4.51 3611 100.0 63500 14130 1.141 ! Near Maximum !
PB Clermont PCL 517 97.8 74.7 4.84 3611 99.7 63500 14331 1.134 ! Near Maximum !
SNPE Vectan SP 12 97.6 74.6 4.83 3610 99.8 63500 14302 1.134 ! Near Maximum !
Alliant Reloder-25 100.6 71.6 4.64 3607 100.0 63500 13565 1.134 ! Near Maximum !
Accurate MAGPRO 95.4 72.5 4.70 3604 98.3 63500 14765 1.142 ! Near Maximum !
ADI AR 2213 95.4 69.0 4.47 3602 99.4 63500 14146 1.118 ! Near Maximum !
ADI AP 2214 99.1 73.6 4.77 3598 99.7 63500 13918 1.118 ! Near Maximum !
Hodgdon H1000 104.2 73.8 4.78 3595 99.7 63500 13877 1.118 ! Near Maximum !
Alliant Reloder-22 95.5 69.1 4.48 3590 99.9 63500 14045 1.138 ! Near Maximum !
Raufoss RA15 95.5 69.1 4.48 3590 99.9 63500 14045 1.138 ! Near Maximum !
Bofors RP5/NP ~approximation 95.5 69.1 4.48 3590 99.9 63500 14045 1.138 ! Near Maximum !
ADI AR 2218 105.0 80.0 5.19 3588 96.1 57904 16032 1.165 ! Near Maximum !
Winchester WXR 98.1 69.4 4.50 3588 99.8 63500 14062 1.138 ! Near Maximum !
Hodgdon Retumbo 105.0 75.5 4.90 3571 100.0 58725 14145 1.170 ! Near Maximum !
Rottweil R905 96.9 68.8 4.46 3563 99.1 63500 13853 1.134 ! Near Maximum !
ADI AR 2209 92.6 65.9 4.27 3561 99.8 63500 13455 1.120 ! Near Maximum !
Alliant Reloder-19 93.1 66.6 4.32 3555 99.8 63500 13494 1.127 ! Near Maximum !
Winchester 760 83.9 63.5 4.12 3548 100.0 63500 13090 1.133 ! Near Maximum !
Hodgdon H4350 88.6 63.1 4.09 3547 100.0 63500 12830 1.125 ! Near Maximum !
Bofors RP14 ~approximation 93.8 67.1 4.35 3547 99.8 63500 13396 1.128 ! Near Maximum !
IMR 4350 91.0 62.4 4.04 3540 100.0 63500 12848 1.126 ! Near Maximum !
Ramshot Hunter 88.8 65.6 4.25 3540 100.0 63500 12952 1.135 ! Near Maximum !
Raufoss RA4 91.4 65.4 4.24 3536 99.8 63500 13221 1.125 ! Near Maximum !
Bofors RP4 ~approximation 91.4 65.4 4.24 3536 99.8 63500 13221 1.125 ! Near Maximum !
Norma 204 88.5 65.4 4.24 3536 99.8 63500 13221 1.125 ! Near Maximum !
Hodgdon H4831 98.2 68.3 4.42 3533 99.0 63500 13419 1.125 ! Near Maximum !
Hodgdon H4831 SC 94.4 68.3 4.42 3533 99.0 63500 13419 1.125 ! Near Maximum !
Alliant Reloder-17 81.9 61.5 3.98 3530 100.0 63500 12318 1.120 ! Near Maximum !
Hodgdon H414 82.1 62.6 4.06 3528 100.0 63500 12933 1.136 ! Near Maximum !
Vihtavuori N550 86.0 62.9 4.07 3518 100.0 63500 12599 1.141 ! Near Maximum !
Norma URP 88.4 62.6 4.05 3518 100.0 63500 12468 1.138 ! Near Maximum !
Bofors RP19 ~approximation 88.4 62.6 4.06 3518 100.0 63500 12464 1.138 ! Near Maximum !
Rottweil R904 92.5 65.2 4.23 3511 99.4 63500 12995 1.124 ! Near Maximum !
Accurate 4350 91.3 62.5 4.05 3507 100.0 63500 12414 1.158 ! Near Maximum !
Somchem S385 93.1 67.3 4.36 3507 100.0 63500 12845 1.148 ! Near Maximum !
Somchem S365 89.6 63.7 4.13 3505 100.0 63500 12046 1.150 ! Near Maximum !
Vihtavuori 24N41 105.0 80.0 5.19 3499 90.9 60613 14347 1.152 ! Near Maximum !
Winchester Supreme 780 91.9 69.3 4.49 3498 99.8 63500 12820 1.136 ! Near Maximum !
Ramshot BigGame 82.7 61.1 3.96 3496 100.0 63500 12069 1.133 ! Near Maximum !
SNPE Vectan SP 11 82.8 61.2 3.97 3494 100.0 63500 12052 1.134 ! Near Maximum !
IMR 4831 92.6 63.5 4.11 3493 100.0 63500 12190 1.148 ! Near Maximum !
Lovex-S0701 88.7 62.8 4.07 3492 100.0 63500 12488 1.141 ! Near Maximum !
Alliant Reloder-15 81.0 57.9 3.75 3491 100.0 63500 12013 1.133 ! Near Maximum !
Raufoss RA11 81.0 57.9 3.75 3491 100.0 63500 12013 1.133 ! Near Maximum !
Bofors RP11 ~approximation 81.0 57.9 3.75 3491 100.0 63500 12013 1.133 ! Near Maximum !
Vihtavuori N165 98.1 69.4 4.50 3489 100.0 63500 12564 1.140 ! Near Maximum !
IMR 4895 81.8 56.6 3.67 3487 100.0 63500 11527 1.115 ! Near Maximum !
Vihtavuori N160 98.6 67.7 4.38 3487 99.4 63500 12729 1.129 ! Near Maximum !
Hodgdon H380 82.2 60.1 3.90 3485 100.0 63500 12140 1.139 ! Near Maximum !
Rottweil R907 87.2 61.2 3.97 3484 100.0 63500 12421 1.131 ! Near Maximum !
IMR 4007 SSC 84.4 61.3 3.97 3483 100.0 63500 12413 1.131 ! Near Maximum !
Norma 203B 81.3 58.2 3.77 3482 100.0 63500 11905 1.136 ! Near Maximum !
PB Clermont PCL 516 79.5 60.6 3.93 3480 100.0 63500 12018 1.128 ! Near Maximum !
Accurate 3100 101.1 68.4 4.43 3478 100.0 63500 12379 1.167 ! Near Maximum !
IMR 4320 82.9 58.4 3.78 3473 100.0 63500 11622 1.120 ! Near Maximum !
Lovex-D1001 103.8 80.0 5.18 3469 92.4 63500 13487 1.143 ! Near Maximum !
Lovex-S0651 87.9 61.5 3.99 3468 100.0 63500 12038 1.139 ! Near Maximum !
Hodgdon Hybrid 100V 93.9 62.8 4.07 3465 100.0 63500 11548 1.139 ! Near Maximum !
SNPE Vectan SP 9 79.4 58.6 3.80 3462 100.0 63500 11647 1.128 ! Near Maximum !
Hodgdon VARGET 84.2 58.3 3.78 3462 100.0 63500 11656 1.119 ! Near Maximum !
ADI AR 2208 83.9 58.3 3.78 3462 100.0 63500 11656 1.119 ! Near Maximum !
Hodgdon BL-C2 76.3 59.6 3.86 3461 100.0 63500 11687 1.142 ! Near Maximum !
Hodgdon H870 105.0 77.6 5.03 3461 96.6 53832 14924 1.235
Norma 203 old 82.1 59.4 3.85 3457 100.0 63500 11667 1.153 ! Near Maximum !
Winchester 748 74.2 57.1 3.70 3455 100.0 63500 11379 1.133 ! Near Maximum !
Somchem S355 84.4 59.1 3.83 3455 100.0 63500 11626 1.143 ! Near Maximum !
IMR 4064 84.5 57.1 3.70 3454 100.0 63500 11474 1.123 ! Near Maximum !
Rottweil R903 83.9 59.4 3.85 3453 100.0 63500 11590 1.152 ! Near Maximum !
PB Clermont PCL 507 76.5 57.1 3.70 3444 100.0 63500 11364 1.129 ! Near Maximum !
Vihtavuori N530 76.1 54.8 3.55 3444 100.0 63500 11305 1.125 ! Near Maximum !
Ramshot TAC 74.4 57.0 3.69 3443 100.0 63500 11343 1.129 ! Near Maximum !
Somchem S341 77.8 59.9 3.88 3441 100.0 63500 11355 1.132 ! Near Maximum !
Somchem S321 75.0 57.7 3.74 3435 100.0 63500 11351 1.137 ! Near Maximum !
Vihtavuori N170 105.0 74.3 4.82 3432 94.7 59627 13552 1.186 ! Near Maximum !
Lovex-S0621 82.1 57.1 3.70 3431 100.0 63500 11259 1.141 ! Near Maximum !
Accurate 2700 85.6 63.3 4.10 3430 100.0 63500 11764 1.134 ! Near Maximum !
Norma 201 76.5 55.9 3.62 3427 100.0 63500 11248 1.141 ! Near Maximum !
Hodgdon H4895 83.4 57.8 3.74 3424 100.0 63500 11038 1.127 ! Near Maximum !
Lovex-S0601 80.3 55.9 3.62 3420 100.0 63500 11077 1.117 ! Near Maximum !
Enjoy!
Cartridge : .257 Weath. Mag
Bullet : .257, 100, Barnes 'TSX'BT 25742
Cartridge O.A.L. L6: 3.170 inch or 80.52 mm
Barrel Length : 26.0 inch or 660.4 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 63500 psi, or 437 MPa
or a maximum loading ratio or filling of 105 %
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 !
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Vihtavuori N570 103.5 78.1 5.06 3674 97.0 63500 16059 1.139 ! Near Maximum !
Vihtavuori N560 95.2 69.6 4.51 3619 99.2 63500 14677 1.133 ! Near Maximum !
IMR 7828 99.6 69.2 4.49 3613 99.5 63500 14258 1.122 ! Near Maximum !
IMR 7828 SSC 94.2 69.2 4.49 3613 99.5 63500 14258 1.122 ! Near Maximum !
Ramshot Magnum (Big Boy) 97.4 74.6 4.84 3612 99.7 63500 14344 1.134 ! Near Maximum !
Norma MRP 2 102.7 73.5 4.76 3612 99.7 63500 14570 1.147 ! Near Maximum !
Norma MRP 93.3 69.6 4.51 3611 100.0 63500 14130 1.141 ! Near Maximum !
PB Clermont PCL 517 97.8 74.7 4.84 3611 99.7 63500 14331 1.134 ! Near Maximum !
SNPE Vectan SP 12 97.6 74.6 4.83 3610 99.8 63500 14302 1.134 ! Near Maximum !
Alliant Reloder-25 100.6 71.6 4.64 3607 100.0 63500 13565 1.134 ! Near Maximum !
Accurate MAGPRO 95.4 72.5 4.70 3604 98.3 63500 14765 1.142 ! Near Maximum !
ADI AR 2213 95.4 69.0 4.47 3602 99.4 63500 14146 1.118 ! Near Maximum !
ADI AP 2214 99.1 73.6 4.77 3598 99.7 63500 13918 1.118 ! Near Maximum !
Hodgdon H1000 104.2 73.8 4.78 3595 99.7 63500 13877 1.118 ! Near Maximum !
Alliant Reloder-22 95.5 69.1 4.48 3590 99.9 63500 14045 1.138 ! Near Maximum !
Raufoss RA15 95.5 69.1 4.48 3590 99.9 63500 14045 1.138 ! Near Maximum !
Bofors RP5/NP ~approximation 95.5 69.1 4.48 3590 99.9 63500 14045 1.138 ! Near Maximum !
ADI AR 2218 105.0 80.0 5.19 3588 96.1 57904 16032 1.165 ! Near Maximum !
Winchester WXR 98.1 69.4 4.50 3588 99.8 63500 14062 1.138 ! Near Maximum !
Hodgdon Retumbo 105.0 75.5 4.90 3571 100.0 58725 14145 1.170 ! Near Maximum !
Rottweil R905 96.9 68.8 4.46 3563 99.1 63500 13853 1.134 ! Near Maximum !
ADI AR 2209 92.6 65.9 4.27 3561 99.8 63500 13455 1.120 ! Near Maximum !
Alliant Reloder-19 93.1 66.6 4.32 3555 99.8 63500 13494 1.127 ! Near Maximum !
Winchester 760 83.9 63.5 4.12 3548 100.0 63500 13090 1.133 ! Near Maximum !
Hodgdon H4350 88.6 63.1 4.09 3547 100.0 63500 12830 1.125 ! Near Maximum !
Bofors RP14 ~approximation 93.8 67.1 4.35 3547 99.8 63500 13396 1.128 ! Near Maximum !
IMR 4350 91.0 62.4 4.04 3540 100.0 63500 12848 1.126 ! Near Maximum !
Ramshot Hunter 88.8 65.6 4.25 3540 100.0 63500 12952 1.135 ! Near Maximum !
Raufoss RA4 91.4 65.4 4.24 3536 99.8 63500 13221 1.125 ! Near Maximum !
Bofors RP4 ~approximation 91.4 65.4 4.24 3536 99.8 63500 13221 1.125 ! Near Maximum !
Norma 204 88.5 65.4 4.24 3536 99.8 63500 13221 1.125 ! Near Maximum !
Hodgdon H4831 98.2 68.3 4.42 3533 99.0 63500 13419 1.125 ! Near Maximum !
Hodgdon H4831 SC 94.4 68.3 4.42 3533 99.0 63500 13419 1.125 ! Near Maximum !
Alliant Reloder-17 81.9 61.5 3.98 3530 100.0 63500 12318 1.120 ! Near Maximum !
Hodgdon H414 82.1 62.6 4.06 3528 100.0 63500 12933 1.136 ! Near Maximum !
Vihtavuori N550 86.0 62.9 4.07 3518 100.0 63500 12599 1.141 ! Near Maximum !
Norma URP 88.4 62.6 4.05 3518 100.0 63500 12468 1.138 ! Near Maximum !
Bofors RP19 ~approximation 88.4 62.6 4.06 3518 100.0 63500 12464 1.138 ! Near Maximum !
Rottweil R904 92.5 65.2 4.23 3511 99.4 63500 12995 1.124 ! Near Maximum !
Accurate 4350 91.3 62.5 4.05 3507 100.0 63500 12414 1.158 ! Near Maximum !
Somchem S385 93.1 67.3 4.36 3507 100.0 63500 12845 1.148 ! Near Maximum !
Somchem S365 89.6 63.7 4.13 3505 100.0 63500 12046 1.150 ! Near Maximum !
Vihtavuori 24N41 105.0 80.0 5.19 3499 90.9 60613 14347 1.152 ! Near Maximum !
Winchester Supreme 780 91.9 69.3 4.49 3498 99.8 63500 12820 1.136 ! Near Maximum !
Ramshot BigGame 82.7 61.1 3.96 3496 100.0 63500 12069 1.133 ! Near Maximum !
SNPE Vectan SP 11 82.8 61.2 3.97 3494 100.0 63500 12052 1.134 ! Near Maximum !
IMR 4831 92.6 63.5 4.11 3493 100.0 63500 12190 1.148 ! Near Maximum !
Lovex-S0701 88.7 62.8 4.07 3492 100.0 63500 12488 1.141 ! Near Maximum !
Alliant Reloder-15 81.0 57.9 3.75 3491 100.0 63500 12013 1.133 ! Near Maximum !
Raufoss RA11 81.0 57.9 3.75 3491 100.0 63500 12013 1.133 ! Near Maximum !
Bofors RP11 ~approximation 81.0 57.9 3.75 3491 100.0 63500 12013 1.133 ! Near Maximum !
Vihtavuori N165 98.1 69.4 4.50 3489 100.0 63500 12564 1.140 ! Near Maximum !
IMR 4895 81.8 56.6 3.67 3487 100.0 63500 11527 1.115 ! Near Maximum !
Vihtavuori N160 98.6 67.7 4.38 3487 99.4 63500 12729 1.129 ! Near Maximum !
Hodgdon H380 82.2 60.1 3.90 3485 100.0 63500 12140 1.139 ! Near Maximum !
Rottweil R907 87.2 61.2 3.97 3484 100.0 63500 12421 1.131 ! Near Maximum !
IMR 4007 SSC 84.4 61.3 3.97 3483 100.0 63500 12413 1.131 ! Near Maximum !
Norma 203B 81.3 58.2 3.77 3482 100.0 63500 11905 1.136 ! Near Maximum !
PB Clermont PCL 516 79.5 60.6 3.93 3480 100.0 63500 12018 1.128 ! Near Maximum !
Accurate 3100 101.1 68.4 4.43 3478 100.0 63500 12379 1.167 ! Near Maximum !
IMR 4320 82.9 58.4 3.78 3473 100.0 63500 11622 1.120 ! Near Maximum !
Lovex-D1001 103.8 80.0 5.18 3469 92.4 63500 13487 1.143 ! Near Maximum !
Lovex-S0651 87.9 61.5 3.99 3468 100.0 63500 12038 1.139 ! Near Maximum !
Hodgdon Hybrid 100V 93.9 62.8 4.07 3465 100.0 63500 11548 1.139 ! Near Maximum !
SNPE Vectan SP 9 79.4 58.6 3.80 3462 100.0 63500 11647 1.128 ! Near Maximum !
Hodgdon VARGET 84.2 58.3 3.78 3462 100.0 63500 11656 1.119 ! Near Maximum !
ADI AR 2208 83.9 58.3 3.78 3462 100.0 63500 11656 1.119 ! Near Maximum !
Hodgdon BL-C2 76.3 59.6 3.86 3461 100.0 63500 11687 1.142 ! Near Maximum !
Hodgdon H870 105.0 77.6 5.03 3461 96.6 53832 14924 1.235
Norma 203 old 82.1 59.4 3.85 3457 100.0 63500 11667 1.153 ! Near Maximum !
Winchester 748 74.2 57.1 3.70 3455 100.0 63500 11379 1.133 ! Near Maximum !
Somchem S355 84.4 59.1 3.83 3455 100.0 63500 11626 1.143 ! Near Maximum !
IMR 4064 84.5 57.1 3.70 3454 100.0 63500 11474 1.123 ! Near Maximum !
Rottweil R903 83.9 59.4 3.85 3453 100.0 63500 11590 1.152 ! Near Maximum !
PB Clermont PCL 507 76.5 57.1 3.70 3444 100.0 63500 11364 1.129 ! Near Maximum !
Vihtavuori N530 76.1 54.8 3.55 3444 100.0 63500 11305 1.125 ! Near Maximum !
Ramshot TAC 74.4 57.0 3.69 3443 100.0 63500 11343 1.129 ! Near Maximum !
Somchem S341 77.8 59.9 3.88 3441 100.0 63500 11355 1.132 ! Near Maximum !
Somchem S321 75.0 57.7 3.74 3435 100.0 63500 11351 1.137 ! Near Maximum !
Vihtavuori N170 105.0 74.3 4.82 3432 94.7 59627 13552 1.186 ! Near Maximum !
Lovex-S0621 82.1 57.1 3.70 3431 100.0 63500 11259 1.141 ! Near Maximum !
Accurate 2700 85.6 63.3 4.10 3430 100.0 63500 11764 1.134 ! Near Maximum !
Norma 201 76.5 55.9 3.62 3427 100.0 63500 11248 1.141 ! Near Maximum !
Hodgdon H4895 83.4 57.8 3.74 3424 100.0 63500 11038 1.127 ! Near Maximum !
Lovex-S0601 80.3 55.9 3.62 3420 100.0 63500 11077 1.117 ! Near Maximum !
Hey CA Hunter,
I have shot 7828 and 4831 with AB in my 257 Wby. The accumark prefers the 4831 and the custom gun likes the 7828. Other factors, such as OAL were the same as were the other components. Primers did not matter (so I use Federals as I bought over 5000 of them. I also have really good luck with 120 gr partitions and 4831.
I can send you the actual load, but it is around max, and you want to work up to it slowly. Be nice when it gets cool enough and still enough to really do some more range work.
Best,
Hardpan
I have shot 7828 and 4831 with AB in my 257 Wby. The accumark prefers the 4831 and the custom gun likes the 7828. Other factors, such as OAL were the same as were the other components. Primers did not matter (so I use Federals as I bought over 5000 of them. I also have really good luck with 120 gr partitions and 4831.
I can send you the actual load, but it is around max, and you want to work up to it slowly. Be nice when it gets cool enough and still enough to really do some more range work.
Best,
Hardpan
- Thread starter
- #4
