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Cartridge : .257 Weath. Mag
Bullet : .257, 115, Nosler BalTip 25115
Useable Case Capaci: 75.551 grain H2O = 4.905 cm³
Cartridge O.A.L. L6: 3.100 inch = 78.74 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26
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 72 54.16 2740 1917 31239 11982 97.7 1.654
-18.0 74 55.51 2809 2015 33530 12273 98.5 1.612
-16.0 76 56.87 2878 2115 35992 12533 99.2 1.572
-14.0 78 58.22 2946 2216 38598 12760 99.6 1.525
-12.0 80 59.58 3014 2319 41358 12953 99.9 1.476
-10.0 81 60.93 3080 2423 44298 13110 100.0 1.429
-08.0 83 62.28 3146 2528 47431 13247 100.0 1.384
-06.0 85 63.64 3211 2633 50768 13381 100.0 1.341
-04.0 87 64.99 3275 2739 54323 13511 100.0 1.300 ! Near Maximum !
-02.0 89 66.35 3338 2846 58113 13637 100.0 1.260 ! Near Maximum !
+00.0 90 67.70 3401 2953 62152 13759 100.0 1.222 ! Near Maximum !
+02.0 92 69.05 3463 3062 66461 13877 100.0 1.185 !DANGEROUS LOAD-DO NOT USE!
+04.0 94 70.41 3524 3171 71060 13992 100.0 1.150 !DANGEROUS LOAD-DO NOT USE!
+06.0 96 71.76 3585 3281 75972 14102 100.0 1.116 !DANGEROUS LOAD-DO NOT USE!
+08.0 98 73.12 3645 3393 81221 14207 100.0 1.084 !DANGEROUS LOAD-DO NOT USE!
+10.0 99 74.47 3705 3506 86837 14308 100.0 1.052 !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 90 67.70 3527 3177 75926 13307 100.0 1.122 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 90 67.70 3207 2626 48448 14363 99.7 1.359
Cartridge : .257 Weath. Mag
Bullet : .257, 115, Nosler BalTip 25115
Useable Case Capaci: 75.551 grain H2O = 4.905 cm³
Cartridge O.A.L. L6: 3.100 inch = 78.74 mm
Barrel Length : 26.0 inch = 660.4 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 63000 psi, or 434 MPa
or a maximum loading ratio or filling of 110 %
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 !
37 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
--------------------------------- -----------------------------------------------------------------
ADI AR 2218 106.4 78.9 5.12 3524 98.6 63000 16559 1.172 ! Near Maximum !
Vihtavuori N570 102.3 75.1 4.87 3489 98.1 63000 16183 1.198 ! Near Maximum !
ReloadSwiss RS 80 105.3 79.5 5.15 3477 98.9 63000 15880 1.198 ! Near Maximum !
Alliant Reloder-33 104.0 78.6 5.09 3470 98.4 63000 15938 1.202 ! Near Maximum !
Alliant Reloder-50 108.5 81.7 5.29 3460 98.0 63000 16230 1.228 ! Near Maximum !
Hodgdon H870 108.4 78.0 5.05 3460 99.3 63000 15559 1.204 ! Near Maximum !
ADI AR 2225 106.0 74.2 4.81 3451 100.0 63000 14154 1.190 ! Near Maximum !
Hodgdon Retumbo 106.0 74.2 4.81 3451 100.0 63000 14154 1.190 ! Near Maximum !
Norma 217 108.3 74.3 4.81 3448 100.0 63000 14568 1.214 ! Near Maximum !
Vihtavuori N560 94.0 66.9 4.34 3426 99.7 63000 14617 1.192 ! Near Maximum !
Bofors RP30 101.5 70.7 4.58 3420 100.0 63000 14501 1.208 ! Near Maximum !
Norma MRP 2 101.5 70.7 4.58 3420 100.0 63000 14501 1.208 ! Near Maximum !
PB Clermont PCL 517 96.6 71.8 4.66 3419 100.0 63000 14259 1.194 ! Near Maximum !
SNPE Vectan SP 12 96.5 71.7 4.65 3417 100.0 63000 14225 1.195 ! Near Maximum !
IMR 7828 98.3 66.5 4.31 3417 99.9 63000 14165 1.182 ! Near Maximum !
IMR 7828 SSC 93.0 66.5 4.31 3417 99.9 63000 14165 1.182 ! Near Maximum !
Accurate MAGPRO 94.2 69.8 4.52 3417 99.1 63000 14781 1.202 ! Near Maximum !
Alliant Reloder-26 90.8 68.0 4.40 3413 100.0 63000 13783 1.214 ! Near Maximum !
Norma MRP 92.1 67.0 4.34 3412 100.0 63000 13990 1.202 ! Near Maximum !
ADI AR 2213 94.2 66.3 4.30 3407 99.9 63000 14065 1.178 ! Near Maximum !
ADI AP 2214 98.0 70.8 4.59 3406 100.0 63000 13838 1.178 ! Near Maximum !
ADI AR 2217 103.0 71.0 4.60 3403 100.0 63000 13799 1.178 ! Near Maximum !
Hodgdon H1000 103.0 71.0 4.60 3403 100.0 63000 13799 1.178 ! Near Maximum !
Alliant Reloder-25 99.4 68.8 4.46 3402 100.0 63000 13451 1.196 ! Near Maximum !
Bofors RP5/NP ~approximation 94.3 66.4 4.30 3394 100.0 63000 13916 1.198 ! Near Maximum !
Alliant Reloder-22 94.3 66.4 4.30 3394 100.0 63000 13916 1.198 ! Near Maximum !
Raufoss RA15 94.3 66.4 4.30 3394 100.0 63000 13916 1.198 ! Near Maximum !
Winchester WXR 96.9 66.7 4.32 3393 100.0 63000 13941 1.198 ! Near Maximum !
Bofors RP15 96.9 66.7 4.32 3393 100.0 63000 13941 1.198 ! Near Maximum !
Vihtavuori 24N41 105.2 78.1 5.06 3383 93.4 63000 14833 1.185 ! Near Maximum !
Bofors 12,7mmRA NC1214 Lot20115087 108.8 80.1 5.19 3382 91.4 63000 15619 1.235 ! Near Maximum !
Bofors RP5 NT ~approximation 97.8 69.5 4.50 3377 99.0 63000 14020 1.179 ! Near Maximum !
Rottweil R905 95.8 66.2 4.29 3373 99.7 63000 13791 1.194 ! Near Maximum !
ADI AR 2209 91.5 63.4 4.11 3364 100.0 63000 13315 1.180 ! Near Maximum !
Ramshot Magnum 94.1 71.4 4.63 3364 100.0 63000 13239 1.201 ! Near Maximum !
Alliant Reloder-19 91.9 64.0 4.15 3360 100.0 63000 13357 1.187 ! Near Maximum !
Hodgdon US 869 110.0 81.6 5.29 3356 93.3 62303 14790 1.206 ! Near Maximum !
Bofors RP14 ~approximation 92.6 64.5 4.18 3352 100.0 63000 13265 1.188 ! Near Maximum !
Hodgdon 50BMG 110.0 77.8 5.04 3352 89.3 61510 15006 1.207 ! Near Maximum !
Hodgdon H4831 SC 93.3 65.7 4.26 3344 99.6 63000 13371 1.185 ! Near Maximum !
Hodgdon H4831 97.0 65.7 4.26 3344 99.6 63000 13371 1.185 ! Near Maximum !
Bofors RP4 ~approximation 90.3 62.9 4.07 3341 100.0 63000 13086 1.185 ! Near Maximum !
Raufoss RA4 90.3 62.9 4.07 3341 100.0 63000 13086 1.185 ! Near Maximum !
Alliant Reloder-23 96.3 65.6 4.25 3330 100.0 63000 12498 1.210 ! Near Maximum !
Vihtavuori N170 105.9 72.9 4.73 3329 96.9 63000 13935 1.209 ! Near Maximum !
Rottweil R904 91.3 62.7 4.06 3319 99.8 63000 12892 1.184 ! Near Maximum !
Somchem S385 92.0 64.8 4.20 3313 100.0 63000 12696 1.208 ! Near Maximum !
IMR 4955 Enduron 94.8 64.2 4.16 3313 99.7 63000 12981 1.182 ! Near Maximum !
Winchester Supreme 780 90.9 66.7 4.32 3309 100.0 63000 12718 1.196 ! Near Maximum !
Lovex D100 102.9 77.1 5.00 3303 94.0 63000 13720 1.201 ! Near Maximum !
Vihtavuori N160 97.4 65.1 4.22 3298 99.8 63000 12648 1.188 ! Near Maximum !
Vihtavuori N165 96.9 66.8 4.33 3298 100.0 63000 12434 1.200 ! Near Maximum !
IMR 4831 91.5 61.0 3.95 3291 100.0 63000 12040 1.209 ! Near Maximum !
Accurate 3100 94.6 65.9 4.27 3286 100.0 63000 12263 1.227 ! Near Maximum !
Lovex S071 100.1 65.9 4.27 3286 100.0 63000 12263 1.227 ! Near Maximum !
Somchem S361 90.4 67.1 4.35 3283 99.6 63000 12664 1.196 ! Near Maximum !
Accurate 8700 110.0 79.9 5.18 3281 96.5 56180 14336 1.256 ! Near Maximum !
SNPE Vectan SP 13 110.0 78.3 5.07 3279 96.5 57600 14265 1.260 ! Near Maximum !
Vihtavuori 20N29 110.0 82.4 5.34 3268 94.3 56196 14644 1.275 ! Near Maximum !
IMR 7977 Enduron 99.4 68.5 4.44 3267 95.2 63000 12900 1.183 ! Near Maximum !
Cartridge : .257 Weath. Mag
Bullet : .257, 115, Nosler BalTip 25115
Useable Case Capaci: 76.337 grain H2O = 4.956 cm³
Cartridge O.A.L. L6: 3.160 inch = 80.26 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26
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 72 54.64 2748 1929 31562 12106 97.8 1.649
-18.0 74 56.01 2818 2027 33885 12395 98.6 1.608
-16.0 76 57.37 2887 2128 36366 12653 99.3 1.567
-14.0 78 58.74 2955 2229 38986 12878 99.7 1.519
-12.0 79 60.10 3022 2332 41769 13068 99.9 1.470
-10.0 81 61.47 3089 2437 44733 13221 100.0 1.423
-08.0 83 62.84 3155 2541 47889 13360 100.0 1.379
-06.0 85 64.20 3219 2647 51251 13496 100.0 1.336
-04.0 87 65.57 3283 2753 54831 13628 100.0 1.295 ! Near Maximum !
-02.0 88 66.93 3346 2860 58647 13756 100.0 1.255 ! Near Maximum !
+00.0 90 68.30 3409 2967 62713 13880 100.0 1.217 ! Near Maximum !
+02.0 92 69.67 3471 3076 67049 14000 100.0 1.181 !DANGEROUS LOAD-DO NOT USE!
+04.0 94 71.03 3532 3185 71675 14117 100.0 1.146 !DANGEROUS LOAD-DO NOT USE!
+06.0 96 72.40 3593 3296 76614 14228 100.0 1.112 !DANGEROUS LOAD-DO NOT USE!
+08.0 98 73.76 3653 3407 81892 14336 100.0 1.080 !DANGEROUS LOAD-DO NOT USE!
+10.0 99 75.13 3713 3520 87536 14439 100.0 1.049 !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 90 68.30 3534 3190 76503 13430 100.0 1.119 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 90 68.30 3216 2642 48973 14492 99.8 1.353
Cartridge : .257 Weath. Mag
Bullet : .257, 115, Nosler BalTip 25115
Useable Case Capaci: 76.337 grain H2O = 4.956 cm³
Cartridge O.A.L. L6: 3.160 inch = 80.26 mm
Barrel Length : 26.0 inch = 660.4 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 63000 psi, or 434 MPa
or a maximum loading ratio or filling of 110 %
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 !
39 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
--------------------------------- -----------------------------------------------------------------
ADI AR 2218 106.0 79.5 5.15 3527 98.7 63000 16699 1.173 ! Near Maximum !
Vihtavuori N570 101.9 75.6 4.90 3489 98.2 63000 16315 1.199 ! Near Maximum !
ReloadSwiss RS 80 104.8 80.0 5.19 3477 99.0 63000 16006 1.200 ! Near Maximum !
Alliant Reloder-33 103.6 79.0 5.12 3470 98.5 63000 16066 1.203 ! Near Maximum !
Alliant Reloder-50 108.0 82.2 5.33 3460 98.1 63000 16361 1.229 ! Near Maximum !
Hodgdon H870 108.0 78.5 5.08 3459 99.3 63000 15681 1.205 ! Near Maximum !
Hodgdon Retumbo 105.6 74.7 4.84 3451 100.0 63000 14262 1.191 ! Near Maximum !
ADI AR 2225 105.6 74.7 4.84 3451 100.0 63000 14262 1.191 ! Near Maximum !
Norma 217 107.8 74.7 4.84 3448 100.0 63000 14678 1.215 ! Near Maximum !
Vihtavuori N560 93.7 67.3 4.36 3427 99.7 63000 14734 1.193 ! Near Maximum !
Norma MRP 2 101.1 71.2 4.61 3420 100.0 63000 14612 1.208 ! Near Maximum !
Bofors RP30 101.1 71.2 4.61 3420 100.0 63000 14612 1.208 ! Near Maximum !
PB Clermont PCL 517 96.3 72.3 4.69 3419 100.0 63000 14370 1.195 ! Near Maximum !
IMR 7828 97.9 67.0 4.34 3418 99.9 63000 14279 1.183 ! Near Maximum !
IMR 7828 SSC 92.6 67.0 4.34 3418 99.9 63000 14279 1.183 ! Near Maximum !
Accurate MAGPRO 93.9 70.2 4.55 3418 99.2 63000 14901 1.202 ! Near Maximum !
SNPE Vectan SP 12 96.1 72.2 4.68 3418 100.0 63000 14336 1.195 ! Near Maximum !
Alliant Reloder-26 90.4 68.4 4.43 3413 100.0 63000 13888 1.215 ! Near Maximum !
Norma MRP 91.8 67.4 4.37 3412 100.0 63000 14098 1.203 ! Near Maximum !
ADI AR 2213 93.8 66.8 4.33 3408 99.9 63000 14178 1.179 ! Near Maximum !
ADI AP 2214 97.6 71.3 4.62 3407 100.0 63000 13949 1.179 ! Near Maximum !
ADI AR 2217 102.6 71.4 4.63 3404 100.0 63000 13910 1.179 ! Near Maximum !
Hodgdon H1000 102.6 71.4 4.63 3404 100.0 63000 13910 1.179 ! Near Maximum !
Alliant Reloder-25 99.0 69.3 4.49 3402 100.0 63000 13555 1.197 ! Near Maximum !
Bofors RP5/NP ~approximation 94.0 66.9 4.33 3395 100.0 63000 14024 1.198 ! Near Maximum !
Alliant Reloder-22 94.0 66.9 4.33 3395 100.0 63000 14024 1.198 ! Near Maximum !
Raufoss RA15 94.0 66.9 4.33 3395 100.0 63000 14024 1.198 ! Near Maximum !
Bofors RP15 96.5 67.2 4.35 3394 100.0 63000 14049 1.198 ! Near Maximum !
Winchester WXR 96.5 67.2 4.35 3394 100.0 63000 14049 1.198 ! Near Maximum !
Vihtavuori 24N41 104.8 78.6 5.09 3385 93.5 63000 14970 1.186 ! Near Maximum !
Bofors 12,7mmRA NC1214 Lot20115087 108.4 80.7 5.23 3384 91.5 63000 15760 1.236 ! Near Maximum !
Bofors RP5 NT ~approximation 97.5 69.9 4.53 3379 99.1 63000 14137 1.180 ! Near Maximum !
Rottweil R905 95.4 66.6 4.32 3374 99.7 63000 13904 1.194 ! Near Maximum !
Hodgdon 50BMG 110.0 78.6 5.09 3369 89.7 62373 15218 1.200 ! Near Maximum !
Hodgdon US 869 109.9 82.4 5.34 3369 93.6 63000 14968 1.201 ! Near Maximum !
ADI AR 2209 91.1 63.8 4.13 3365 100.0 63000 13420 1.180 ! Near Maximum !
Ramshot Magnum 93.7 71.8 4.66 3364 100.0 63000 13343 1.202 ! Near Maximum !
Alliant Reloder-19 91.6 64.4 4.18 3361 100.0 63000 13463 1.187 ! Near Maximum !
Bofors RP14 ~approximation 92.3 64.9 4.21 3354 100.0 63000 13370 1.188 ! Near Maximum !
Hodgdon H4831 96.7 66.1 4.28 3346 99.6 63000 13482 1.185 ! Near Maximum !
Hodgdon H4831 SC 93.0 66.1 4.28 3346 99.6 63000 13482 1.185 ! Near Maximum !
Vihtavuori N170 105.5 73.4 4.76 3331 97.0 63000 14058 1.209 ! Near Maximum !
Alliant Reloder-23 95.9 66.0 4.28 3330 100.0 63000 12596 1.211 ! Near Maximum !
Rottweil R904 91.0 63.1 4.09 3321 99.8 63000 13000 1.183 ! Near Maximum !
IMR 4955 Enduron 94.5 64.7 4.19 3315 99.7 63000 13090 1.181 ! Near Maximum !
Somchem S385 91.7 65.2 4.23 3315 100.0 63000 12798 1.208 ! Near Maximum !
Winchester Supreme 780 90.6 67.2 4.35 3310 100.0 63000 12820 1.196 ! Near Maximum !
Lovex D100 102.5 77.6 5.03 3306 94.1 63000 13849 1.201 ! Near Maximum !
Vihtavuori N160 97.1 65.5 4.25 3300 99.8 63000 12754 1.188 ! Near Maximum !
Vihtavuori N165 96.6 67.2 4.36 3300 100.0 63000 12535 1.200 ! Near Maximum !
Accurate 8700 110.0 80.8 5.23 3298 96.8 57080 14510 1.248 ! Near Maximum !
SNPE Vectan SP 13 110.0 79.1 5.12 3295 96.7 58479 14437 1.252 ! Near Maximum !
IMR 4831 91.2 61.4 3.98 3292 100.0 63000 12138 1.209 ! Near Maximum !
Accurate 3100 94.3 66.3 4.30 3287 100.0 63000 12361 1.227 ! Near Maximum !
Lovex S071 99.7 66.3 4.30 3287 100.0 63000 12361 1.227 ! Near Maximum !
Vihtavuori 20N29 110.0 83.3 5.40 3287 94.6 57158 14834 1.266 ! Near Maximum !
Somchem S361 90.1 67.5 4.38 3285 99.6 63000 12771 1.196 ! Near Maximum !
IMR 7977 Enduron 99.1 68.9 4.47 3270 95.3 63000 13023 1.182 ! Near Maximum !
PB Clermont PCL 513/520/9520 110.0 79.1 5.12 3227 94.8 54748 14291 1.289 ! Near Maximum !
wbyfan1":dved0sid said:Thanks again Mike!
On a side note, looks like I may need to try out some AR2218. A 115 gr Ballistic Tip at 3547 fps!!! Holy cow!! My current pet load using RL-25 launches them at a skosh over 3400 and they're absolutely the surest killer of any cartridge/bullet combo I've ever used. An extra 150 fps would be fun.