Load Specifications
Load data in caliber .357 Mag. with .357 | 125gr | CamPro bullet and 64 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Rottweil P 806, SNPE Vectan BA7 1/2 and Vihtavuori N350.
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.
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Max Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 76% | 38,232 psi | 88% | 1480 fps | 100% |
| Accurate No. 7*² | <<locked>> | 76% | 36,027 psi | 83% | 1604 fps | 91.1% |
| Accurate Solo 1000² | <<locked>> | 76% | 36,463 psi | 84% | 1355 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 36,071 psi | 83% | 1411 fps | 100% |
| ADI AP 100ᴾ | <<locked>> | 100% | 38,943 psi | 90% | 1591 fps | 99% |
| ADI AP 70N² | <<locked>> | 68% | 37,652 psi | 87% | 1450 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 37,898 psi | 87% | 1257 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 36,956 psi | 85% | 1283 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 39,320 psi | 90% | 1355 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 39,276 psi | 90% | 1404 fps | 100% |
| Alliant BE-86 | <<locked>> | 80% | 37,028 psi | 85% | 1407 fps | 100% |
| Alliant BLUE DOT*ᴾ | <<locked>> | 100% | 37,855 psi | 87% | 1621 fps | 90.8% |
| Alliant BULLSEYE² | <<locked>> | 72% | 37,768 psi | 87% | 1512 fps | 100% |
| Alliant Green Dot | <<locked>> | 80% | 38,682 psi | 89% | 1401 fps | 100% |
| Alliant Herco | <<locked>> | 96% | 36,869 psi | 85% | 1499 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 80% | 35,853 psi | 82% | 1594 fps | 97.8% |
| Alliant RED DOT | <<locked>> | 80% | 37,289 psi | 86% | 1355 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 38,435 psi | 88% | 1526 fps | 100% |
| Alliant UNIQUE | <<locked>> | 80% | 35,665 psi | 82% | 1490 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 36,114 psi | 83% | 1355 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 96% | 36,492 psi | 84% | 1371 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 36,201 psi | 83% | 1375 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 38,798 psi | 89% | 1302 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 68% | 38,885 psi | 89% | 1568 fps | 100% |
| Hodgdon Longshot² | <<locked>> | 64% | 37,550 psi | 86% | 1542 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 16,969 psi | 39% | 1024 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 37,652 psi | 87% | 1450 fps | 100% |
| Lovex D037.1*² | <<locked>> | 76% | 36,027 psi | 83% | 1604 fps | 91.1% |
| Lovex S011² | <<locked>> | 68% | 38,827 psi | 89% | 1414 fps | 100% |
| Lovex S020² | <<locked>> | 76% | 39,320 psi | 90% | 1486 fps | 100% |
| Maxam CSB 1 | <<locked>> | 84% | 36,361 psi | 84% | 1411 fps | 100% |
| Maxam CSB 2 | <<locked>> | 80% | 36,245 psi | 83% | 1411 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 37,521 psi | 86% | 1401 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 35,940 psi | 83% | 1358 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 36,622 psi | 84% | 1312 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 68% | 37,927 psi | 87% | 1519 fps | 100% |
| Ramshot True Blue² | <<locked>> | 64% | 38,812 psi | 89% | 1555 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 38,769 psi | 89% | 1424 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 15,519 psi | 36% | 1027 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 84% | 38,116 psi | 88% | 1509 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 84% | 37,985 psi | 87% | 1621 fps | 94.2% |
| Rottweil P 801² | <<locked>> | 68% | 39,015 psi | 90% | 1391 fps | 100% |
| Rottweil P 806 | <<locked>> | 88% | 36,941 psi | 85% | 1624 fps | 100% |
| Shooters World Major Pistol*² | <<locked>> | 76% | 36,027 psi | 83% | 1604 fps | 91.1% |
| SNPE Vectan A0 | <<locked>> | 84% | 36,695 psi | 84% | 1453 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 76% | 37,521 psi | 86% | 1411 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 36,521 psi | 84% | 1421 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 37,811 psi | 87% | 1293 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 88% | 35,694 psi | 82% | 1503 fps | 100% |
| SNPE Vectan BA9 1/2 | <<locked>> | 80% | 39,073 psi | 90% | 1457 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 37,028 psi | 85% | 1621 fps | 99.2% |
| Somchem MP200² | <<locked>> | 76% | 38,392 psi | 88% | 1516 fps | 100% |
| Somchem MS200 | <<locked>> | 80% | 37,173 psi | 85% | 1473 fps | 100% |
| Somchem S221² | <<locked>> | 72% | 39,363 psi | 90% | 1614 fps | 97.1% |
| Vihtavuori 3N37 | <<locked>> | 84% | 39,044 psi | 90% | 1568 fps | 100% |
| Vihtavuori 3N38* | <<locked>> | 96% | 36,071 psi | 83% | 1578 fps | 94.3% |
| Vihtavuori N105ᴾ | <<locked>> | 100% | 34,896 psi | 80% | 1624 fps | 97.4% |
| Vihtavuori N320² | <<locked>> | 72% | 36,056 psi | 83% | 1365 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 30,951 psi | 71% | 1224 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 34,969 psi | 80% | 1414 fps | 100% |
| Vihtavuori N340 | <<locked>> | 80% | 37,565 psi | 86% | 1480 fps | 100% |
| Vihtavuori N350 | <<locked>> | 88% | 37,681 psi | 87% | 1545 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 36,608 psi | 84% | 1411 fps | 100% |
| Winchester AutoComp | <<locked>> | 84% | 38,682 psi | 89% | 1463 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% | 23,279 psi | 54% | 1253 fps | 99.8% |
| Accurate No. 7*² | <<locked>> | 68% | 26,832 psi | 62% | 1440 fps | 85.9% |
| Accurate Solo 1000² | <<locked>> | 60% | 24,555 psi | 56% | 1188 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 20,610 psi | 47% | 1175 fps | 100% |
| ADI AP 100*² | <<locked>> | 64% | 15,185 psi | 35% | 1106 fps | 85.4% |
| ADI AP 70N² | <<locked>> | 60% | 29,776 psi | 68% | 1342 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 26,469 psi | 61% | 1109 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 24,932 psi | 57% | 1119 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 24,366 psi | 56% | 1152 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 26,165 psi | 60% | 1227 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 21,509 psi | 49% | 1184 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 92% | 30,835 psi | 71% | 1503 fps | 87.2% |
| Alliant BULLSEYE² | <<locked>> | 60% | 26,701 psi | 61% | 1342 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 23,772 psi | 55% | 1191 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 15,156 psi | 35% | 1089 fps | 98.3% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 19,740 psi | 45% | 1263 fps | 89.1% |
| Alliant RED DOT² | <<locked>> | 60% | 23,337 psi | 54% | 1155 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 30,414 psi | 70% | 1407 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 20,842 psi | 48% | 1234 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 23,018 psi | 53% | 1171 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 14,779 psi | 34% | 1024 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 25,092 psi | 58% | 1227 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 21,074 psi | 48% | 1053 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 29,254 psi | 67% | 1421 fps | 98.8% |
| Hodgdon Longshot² | <<locked>> | 60% | 32,561 psi | 75% | 1470 fps | 99.9% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,861 psi | 18% | 764 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 24,889 psi | 57% | 1263 fps | 100% |
| Lovex D037.1*² | <<locked>> | 68% | 26,832 psi | 62% | 1440 fps | 85.9% |
| Lovex S011² | <<locked>> | 60% | 30,951 psi | 71% | 1316 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 24,149 psi | 56% | 1273 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 19,769 psi | 45% | 1152 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 20,943 psi | 48% | 1184 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 22,365 psi | 51% | 1181 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 24,163 psi | 56% | 1191 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 27,209 psi | 63% | 1188 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 29,298 psi | 67% | 1394 fps | 100% |
| Ramshot True Blue² | <<locked>> | 60% | 33,692 psi | 77% | 1483 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 28,195 psi | 65% | 1286 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 7,208 psi | 17% | 751 fps | 98.9% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 19,377 psi | 45% | 1214 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 68% | 23,003 psi | 53% | 1342 fps | 85.7% |
| Rottweil P 801² | <<locked>> | 60% | 31,604 psi | 73% | 1299 fps | 100% |
| Rottweil P 806*² | 10.3 gr | 60% | 14,243 psi | 33% | 1158 fps | 89.6% |
| Shooters World Major Pistol*² | <<locked>> | 68% | 26,832 psi | 62% | 1440 fps | 85.9% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,740 psi | 45% | 1175 fps | 99.8% |
| SNPE Vectan A1² | <<locked>> | 60% | 24,323 psi | 56% | 1224 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 23,453 psi | 54% | 1227 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 27,891 psi | 64% | 1165 fps | 100% |
| SNPE Vectan BA7 1/2*² | 7.5 gr | 60% | 16,549 psi | 38% | 1129 fps | 93% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 22,960 psi | 53% | 1224 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 21,741 psi | 50% | 1335 fps | 93.1% |
| Somchem MP200² | <<locked>> | 60% | 23,786 psi | 55% | 1286 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 21,886 psi | 50% | 1230 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 26,281 psi | 60% | 1391 fps | 91.6% |
| Vihtavuori 3N37² | <<locked>> | 60% | 18,971 psi | 44% | 1217 fps | 96% |
| Vihtavuori 3N38* | <<locked>> | 80% | 22,887 psi | 53% | 1335 fps | 86.7% |
| Vihtavuori N105* | <<locked>> | 80% | 18,942 psi | 44% | 1296 fps | 87.3% |
| Vihtavuori N320² | <<locked>> | 60% | 25,222 psi | 58% | 1217 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 13,024 psi | 30% | 915 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 24,192 psi | 56% | 1260 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 21,147 psi | 49% | 1220 fps | 100% |
| Vihtavuori N350*² | 7.4 gr | 60% | 16,723 psi | 38% | 1155 fps | 94.7% |
| Winchester 231² | <<locked>> | 60% | 32,619 psi | 75% | 1358 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 20,247 psi | 47% | 1181 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 64 powders for .357 Mag. loaded with the .357 | 125gr | CamPro. Rottweil P 806 delivers the highest muzzle velocity at 1,624 fps; across all powders the maximum-charge window runs from 1,024 fps to 1,624 fps. ADI AP 100 gives the best case fill at 100 %, and 31 of the 64 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (300 MPa), the top charges use 36–90 %, leaving at least 10 % headroom. ADI AP 100, Alliant BLUE DOT, Hodgdon TrailBoss 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. Rottweil P 806, SNPE Vectan BA7 1/2, Vihtavuori N350 rank at the top here: for .357 Mag. with the .357 | 125gr | CamPro they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 7, Alliant BLUE DOT, Lovex D037.1 burn incompletely and react more sensitively to barrel length and temperature. ADI AP 100, ADI APS 350, ADI APS 450 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.