Load Specifications
Load data in caliber .357 Mag. with .357 | 150gr | Nosler Partition bullet and 66 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N105, ADI AP 100 and SNPE Vectan BA7 1/2.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 60% and propellant combustion ≥ 80%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 72% | 35,708 psi | 82% | 1286 fps | 100% |
| Accurate No. 7*² | <<locked>> | 76% | 38,493 psi | 88% | 1476 fps | 94.4% |
| Accurate No. 9* | <<locked>> | 84% | 37,695 psi | 87% | 1453 fps | 88.5% |
| Accurate Solo 1000² | <<locked>> | 76% | 37,478 psi | 86% | 1207 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 37,333 psi | 86% | 1263 fps | 100% |
| Accurate TCM* | <<locked>> | 84% | 37,565 psi | 86% | 1447 fps | 89.9% |
| ADI AP 100 | <<locked>> | 96% | 37,536 psi | 86% | 1404 fps | 99.6% |
| ADI AP 70N² | <<locked>> | 68% | 39,102 psi | 90% | 1296 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 38,624 psi | 89% | 1119 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 37,318 psi | 86% | 1138 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 37,159 psi | 85% | 1175 fps | 100% |
| ADI AS 50N² | <<locked>> | 72% | 36,811 psi | 85% | 1217 fps | 100% |
| Alliant BE-86² | <<locked>> | 76% | 34,954 psi | 80% | 1227 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 96% | 36,158 psi | 83% | 1434 fps | 92.5% |
| Alliant BULLSEYE² | <<locked>> | 72% | 39,131 psi | 90% | 1355 fps | 100% |
| Alliant Green Dot² | <<locked>> | 76% | 37,260 psi | 86% | 1224 fps | 100% |
| Alliant Herco | <<locked>> | 96% | 38,305 psi | 88% | 1348 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 80% | 37,913 psi | 87% | 1457 fps | 99.4% |
| Alliant RED DOT | <<locked>> | 80% | 38,943 psi | 90% | 1214 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 64% | 35,447 psi | 81% | 1316 fps | 100% |
| Alliant UNIQUE | <<locked>> | 80% | 37,652 psi | 87% | 1345 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 36,898 psi | 85% | 1204 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 96% | 38,058 psi | 87% | 1230 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 37,782 psi | 87% | 1237 fps | 100% |
| Hodgdon Clays | <<locked>> | 84% | 36,695 psi | 84% | 1129 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 64% | 35,665 psi | 82% | 1358 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 17,477 psi | 40% | 912 fps | 100% |
| Hodgdon Universal² | <<locked>> | 72% | 36,303 psi | 83% | 1266 fps | 100% |
| Lovex D037.1*² | <<locked>> | 76% | 38,493 psi | 88% | 1476 fps | 94.4% |
| Lovex D037.2* | <<locked>> | 84% | 38,450 psi | 88% | 1463 fps | 88.9% |
| Lovex S011² | <<locked>> | 64% | 35,636 psi | 82% | 1217 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 37,536 psi | 86% | 1296 fps | 100% |
| Maxam CSB 1 | <<locked>> | 84% | 37,913 psi | 87% | 1266 fps | 100% |
| Maxam CSB 2 | <<locked>> | 80% | 37,840 psi | 87% | 1263 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 38,406 psi | 88% | 1247 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 37,173 psi | 85% | 1214 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 38,130 psi | 88% | 1175 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 64% | 34,969 psi | 80% | 1312 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 68% | 36,303 psi | 83% | 1230 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 16,099 psi | 37% | 919 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 80% | 36,347 psi | 84% | 1319 fps | 100% |
| ReloadSwiss RS 24 | <<locked>> | 80% | 35,375 psi | 81% | 1421 fps | 95.3% |
| Rottweil P 801² | <<locked>> | 64% | 36,390 psi | 84% | 1201 fps | 100% |
| Rottweil P 806 | <<locked>> | 84% | 35,041 psi | 81% | 1430 fps | 100% |
| Shooters World Heavy Pistol* | <<locked>> | 84% | 38,450 psi | 88% | 1463 fps | 88.9% |
| Shooters World Major Pistol*² | <<locked>> | 76% | 38,493 psi | 88% | 1476 fps | 94.4% |
| SNPE Vectan A0 | <<locked>> | 84% | 37,985 psi | 87% | 1302 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 76% | 39,349 psi | 90% | 1266 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 38,435 psi | 88% | 1280 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 38,276 psi | 88% | 1148 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 88% | 37,652 psi | 87% | 1362 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 76% | 37,130 psi | 85% | 1270 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 39,073 psi | 90% | 1473 fps | 100% |
| Somchem MP200² | <<locked>> | 72% | 35,708 psi | 82% | 1312 fps | 100% |
| Somchem MS200 | <<locked>> | 80% | 39,117 psi | 90% | 1325 fps | 100% |
| Somchem S221² | <<locked>> | 68% | 36,666 psi | 84% | 1411 fps | 97.9% |
| Vihtavuori 3N37 | <<locked>> | 80% | 37,101 psi | 85% | 1375 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 96% | 38,435 psi | 88% | 1450 fps | 96.9% |
| Vihtavuori N105ᴾ | <<locked>> | 100% | 37,289 psi | 86% | 1486 fps | 99.2% |
| Vihtavuori N320² | <<locked>> | 72% | 37,536 psi | 86% | 1220 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 32,503 psi | 75% | 1096 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 36,535 psi | 84% | 1266 fps | 100% |
| Vihtavuori N340 | <<locked>> | 80% | 38,943 psi | 90% | 1325 fps | 100% |
| Vihtavuori N350 | <<locked>> | 84% | 35,331 psi | 81% | 1348 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 37,898 psi | 87% | 1260 fps | 100% |
| Winchester AutoComp | <<locked>> | 80% | 36,448 psi | 84% | 1273 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 24,743 psi | 57% | 1138 fps | 100% |
| Accurate No. 7*² | <<locked>> | 64% | 24,845 psi | 57% | 1260 fps | 87.3% |
| Accurate No. 9* | <<locked>> | 80% | 32,576 psi | 75% | 1381 fps | 86% |
| Accurate Solo 1000² | <<locked>> | 60% | 24,961 psi | 57% | 1053 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 22,133 psi | 51% | 1066 fps | 100% |
| Accurate TCM*² | <<locked>> | 76% | 28,572 psi | 66% | 1312 fps | 85.1% |
| ADI AP 100*² | 6.4 gr | 60% | 14,315 psi | 33% | 968 fps | 87.1% |
| ADI AP 70N² | <<locked>> | 60% | 30,980 psi | 71% | 1201 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 26,861 psi | 62% | 984 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 25,657 psi | 59% | 997 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 25,251 psi | 58% | 1030 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 26,919 psi | 62% | 1096 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 22,379 psi | 51% | 1063 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 80% | 23,685 psi | 54% | 1220 fps | 85.1% |
| Alliant BULLSEYE² | <<locked>> | 60% | 28,239 psi | 65% | 1214 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 25,005 psi | 57% | 1070 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 15,925 psi | 37% | 991 fps | 99.6% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 21,190 psi | 49% | 1168 fps | 92.9% |
| Alliant RED DOT² | <<locked>> | 60% | 24,076 psi | 55% | 1027 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 31,937 psi | 73% | 1270 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 22,046 psi | 51% | 1119 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 24,598 psi | 57% | 1056 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 15,853 psi | 36% | 928 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 26,469 psi | 61% | 1106 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 21,466 psi | 49% | 935 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 31,111 psi | 72% | 1296 fps | 99.9% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,992 psi | 18% | 679 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 26,208 psi | 60% | 1135 fps | 100% |
| Lovex D037.1*² | <<locked>> | 64% | 24,845 psi | 57% | 1260 fps | 87.3% |
| Lovex D037.2* | <<locked>> | 80% | 33,939 psi | 78% | 1401 fps | 86.8% |
| Lovex S011² | <<locked>> | 60% | 31,807 psi | 73% | 1175 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 25,962 psi | 60% | 1155 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 20,537 psi | 47% | 1033 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 22,698 psi | 52% | 1073 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 23,047 psi | 53% | 1053 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 24,743 psi | 57% | 1060 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 27,557 psi | 63% | 1053 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 30,995 psi | 71% | 1263 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 29,153 psi | 67% | 1148 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 7,658 psi | 18% | 686 fps | 99.9% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 20,204 psi | 46% | 1093 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 64% | 21,509 psi | 49% | 1178 fps | 87.3% |
| Rottweil P 801² | <<locked>> | 60% | 32,764 psi | 75% | 1161 fps | 100% |
| Rottweil P 806*² | <<locked>> | 60% | 15,316 psi | 35% | 1073 fps | 93.8% |
| Shooters World Heavy Pistol* | <<locked>> | 80% | 33,939 psi | 78% | 1401 fps | 86.8% |
| Shooters World Major Pistol*² | <<locked>> | 64% | 24,845 psi | 57% | 1260 fps | 87.3% |
| SNPE Vectan A0² | <<locked>> | 60% | 20,784 psi | 48% | 1063 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 25,063 psi | 58% | 1096 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 24,265 psi | 56% | 1099 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 29,008 psi | 67% | 1043 fps | 100% |
| SNPE Vectan BA7 1/2² | 6.8 gr | 60% | 17,405 psi | 40% | 1030 fps | 95.8% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 24,192 psi | 56% | 1102 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 22,887 psi | 53% | 1217 fps | 96% |
| Somchem MP200² | <<locked>> | 60% | 25,005 psi | 57% | 1165 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 23,134 psi | 53% | 1112 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 27,775 psi | 64% | 1276 fps | 94.7% |
| Vihtavuori 3N37² | <<locked>> | 60% | 20,378 psi | 47% | 1115 fps | 98.4% |
| Vihtavuori 3N38*² | <<locked>> | 72% | 19,189 psi | 44% | 1122 fps | 86.2% |
| Vihtavuori N105*² | 8.7 gr | 72% | 15,780 psi | 36% | 1086 fps | 86.8% |
| Vihtavuori N320² | <<locked>> | 60% | 27,064 psi | 62% | 1099 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 13,416 psi | 31% | 817 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 25,904 psi | 60% | 1138 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 22,553 psi | 52% | 1109 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 17,680 psi | 41% | 1056 fps | 97.4% |
| Winchester 231² | <<locked>> | 60% | 33,359 psi | 77% | 1207 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 21,089 psi | 48% | 1063 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
* not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.
² fill rate low - you might want to consider using a filler to ensure proper ignition.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 66 powders for .357 Mag. loaded with the .357 | 150gr | Nosler Partition. Vihtavuori N105 delivers the highest muzzle velocity at 1,486 fps; across all powders the maximum-charge window runs from 912 fps to 1,486 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 31 of the 66 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (300 MPa), the top charges use 37–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N105 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Vihtavuori N105, ADI AP 100, SNPE Vectan BA7 1/2 rank at the top here: for .357 Mag. with the .357 | 150gr | Nosler Partition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 7, Accurate No. 9, Accurate TCM burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1000, Accurate Solo 1250, ADI AP 100 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.