Load Specifications
Load data in caliber .357 Mag. with .358 | 125gr | LEE Mold 358-125-RF bullet and 65 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Rottweil P 806, 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.
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Max Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 76% | 38,943 psi | 90% | 1509 fps | 100% |
| Accurate No. 7*² | <<locked>> | 76% | 35,926 psi | 83% | 1624 fps | 91.6% |
| Accurate Solo 1000² | <<locked>> | 76% | 36,680 psi | 84% | 1375 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 84% | 39,276 psi | 90% | 1470 fps | 100% |
| ADI AP 100ᴾ | <<locked>> | 100% | 39,088 psi | 90% | 1614 fps | 99.2% |
| ADI AP 70N² | <<locked>> | 68% | 36,854 psi | 85% | 1460 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 37,695 psi | 87% | 1273 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 36,535 psi | 84% | 1293 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 38,305 psi | 88% | 1365 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 38,914 psi | 89% | 1421 fps | 100% |
| Alliant BE-86 | <<locked>> | 80% | 36,912 psi | 85% | 1427 fps | 100% |
| Alliant BLUE DOT*ᴾ | <<locked>> | 100% | 37,753 psi | 87% | 1640 fps | 91.3% |
| Alliant BULLSEYE² | <<locked>> | 72% | 37,695 psi | 87% | 1529 fps | 100% |
| Alliant Green Dot | <<locked>> | 80% | 38,319 psi | 88% | 1421 fps | 100% |
| Alliant Herco | <<locked>> | 96% | 36,230 psi | 83% | 1512 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 80% | 36,201 psi | 83% | 1621 fps | 98.2% |
| Alliant RED DOT | <<locked>> | 80% | 37,275 psi | 86% | 1375 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 38,189 psi | 88% | 1539 fps | 100% |
| Alliant UNIQUE | <<locked>> | 84% | 38,870 psi | 89% | 1552 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 35,911 psi | 83% | 1371 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 96% | 36,260 psi | 83% | 1388 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 35,621 psi | 82% | 1388 fps | 100% |
| Hodgdon Clays² | <<locked>> | 76% | 38,406 psi | 88% | 1296 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 68% | 39,001 psi | 90% | 1588 fps | 100% |
| Hodgdon Longshot² | <<locked>> | 64% | 37,826 psi | 87% | 1565 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 16,070 psi | 37% | 1027 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 37,681 psi | 87% | 1470 fps | 100% |
| Lovex D037.1*² | <<locked>> | 76% | 35,926 psi | 83% | 1624 fps | 91.6% |
| Lovex S011² | <<locked>> | 68% | 38,856 psi | 89% | 1434 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 35,041 psi | 81% | 1457 fps | 100% |
| Maxam CSB 1 | <<locked>> | 84% | 35,926 psi | 83% | 1424 fps | 100% |
| Maxam CSB 2 | <<locked>> | 80% | 35,476 psi | 82% | 1421 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 37,362 psi | 86% | 1417 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 36,027 psi | 83% | 1378 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 36,071 psi | 83% | 1325 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 68% | 37,811 psi | 87% | 1535 fps | 100% |
| Ramshot True Blue² | <<locked>> | 64% | 39,073 psi | 90% | 1575 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 38,783 psi | 89% | 1444 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 14,286 psi | 33% | 1024 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 84% | 38,261 psi | 88% | 1532 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 84% | 37,724 psi | 87% | 1637 fps | 94.5% |
| Rottweil P 801² | <<locked>> | 68% | 39,044 psi | 90% | 1411 fps | 100% |
| Rottweil P 806 | <<locked>> | 88% | 36,695 psi | 84% | 1640 fps | 100% |
| Shooters World Major Pistol*² | <<locked>> | 76% | 35,926 psi | 83% | 1624 fps | 91.6% |
| SNPE Vectan A0 | <<locked>> | 84% | 36,985 psi | 85% | 1476 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 76% | 37,826 psi | 87% | 1430 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 36,854 psi | 85% | 1444 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 37,376 psi | 86% | 1302 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 88% | 35,911 psi | 83% | 1526 fps | 100% |
| SNPE Vectan BA9 1/2 | <<locked>> | 80% | 39,334 psi | 90% | 1480 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 36,854 psi | 85% | 1637 fps | 99.3% |
| Somchem MP200² | <<locked>> | 76% | 37,521 psi | 86% | 1526 fps | 100% |
| Somchem MS200 | <<locked>> | 80% | 37,304 psi | 86% | 1496 fps | 100% |
| Somchem S221² | <<locked>> | 72% | 39,334 psi | 90% | 1637 fps | 97.5% |
| Vihtavuori 3N37 | <<locked>> | 84% | 38,667 psi | 89% | 1585 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 96% | 39,102 psi | 90% | 1644 fps | 95.8% |
| Vihtavuori N105ᴾ | <<locked>> | 100% | 35,273 psi | 81% | 1644 fps | 97.8% |
| Vihtavuori N310² | <<locked>> | 64% | 38,696 psi | 89% | 1322 fps | 100% |
| Vihtavuori N320² | <<locked>> | 76% | 38,334 psi | 88% | 1411 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 36,056 psi | 83% | 1302 fps | 100% |
| Vihtavuori N330² | <<locked>> | 76% | 36,869 psi | 85% | 1457 fps | 100% |
| Vihtavuori N340 | <<locked>> | 80% | 36,709 psi | 84% | 1490 fps | 100% |
| Vihtavuori N350 | <<locked>> | 84% | 35,723 psi | 82% | 1542 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 36,245 psi | 83% | 1424 fps | 100% |
| Winchester AutoComp | <<locked>> | 84% | 38,290 psi | 88% | 1476 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% | 22,655 psi | 52% | 1263 fps | 99.8% |
| Accurate No. 7*² | <<locked>> | 68% | 26,731 psi | 61% | 1460 fps | 86.4% |
| Accurate Solo 1000² | <<locked>> | 60% | 24,294 psi | 56% | 1201 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 20,001 psi | 46% | 1181 fps | 100% |
| ADI AP 100*² | 8.4 gr | 68% | 16,549 psi | 38% | 1168 fps | 87.5% |
| ADI AP 70N² | <<locked>> | 60% | 29,153 psi | 67% | 1355 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 26,629 psi | 61% | 1129 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 24,889 psi | 57% | 1135 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 23,859 psi | 55% | 1165 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 25,425 psi | 58% | 1237 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 20,537 psi | 47% | 1184 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 88% | 27,456 psi | 63% | 1457 fps | 85.6% |
| Alliant BULLSEYE² | <<locked>> | 60% | 26,179 psi | 60% | 1352 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 23,076 psi | 53% | 1201 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 14,431 psi | 33% | 1089 fps | 98% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 19,595 psi | 45% | 1283 fps | 89.4% |
| Alliant RED DOT² | <<locked>> | 60% | 22,843 psi | 53% | 1168 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 30,371 psi | 70% | 1424 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 19,841 psi | 46% | 1234 fps | 99.9% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 22,423 psi | 52% | 1181 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 13,895 psi | 32% | 1024 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 24,758 psi | 57% | 1240 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 27,050 psi | 62% | 1148 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 29,515 psi | 68% | 1447 fps | 99.1% |
| Hodgdon Longshot² | <<locked>> | 60% | 32,213 psi | 74% | 1483 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 6,498 psi | 15% | 738 fps | 99.9% |
| Hodgdon Universal² | <<locked>> | 60% | 23,728 psi | 55% | 1266 fps | 100% |
| Lovex D037.1*² | <<locked>> | 68% | 26,731 psi | 61% | 1460 fps | 86.4% |
| Lovex S011² | <<locked>> | 60% | 30,400 psi | 70% | 1325 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 23,757 psi | 55% | 1286 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 19,087 psi | 44% | 1158 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 20,450 psi | 47% | 1198 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 21,857 psi | 50% | 1191 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 23,757 psi | 55% | 1201 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 26,919 psi | 62% | 1204 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 29,356 psi | 67% | 1414 fps | 100% |
| Ramshot True Blue² | <<locked>> | 60% | 34,026 psi | 78% | 1506 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 26,818 psi | 62% | 1286 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 5,947 psi | 14% | 728 fps | 97% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 18,536 psi | 43% | 1214 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 68% | 22,872 psi | 53% | 1358 fps | 86.1% |
| Rottweil P 801² | <<locked>> | 60% | 30,966 psi | 71% | 1312 fps | 100% |
| Rottweil P 806*² | 10.8 gr | 60% | 12,908 psi | 30% | 1132 fps | 87.8% |
| Shooters World Major Pistol*² | <<locked>> | 68% | 26,731 psi | 61% | 1460 fps | 86.4% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,087 psi | 44% | 1178 fps | 99.8% |
| SNPE Vectan A1² | <<locked>> | 60% | 24,178 psi | 56% | 1240 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 23,351 psi | 54% | 1243 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 27,789 psi | 64% | 1178 fps | 100% |
| SNPE Vectan BA7 1/2*² | 7.9 gr | 60% | 15,954 psi | 37% | 1132 fps | 92.7% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 22,785 psi | 52% | 1240 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 20,639 psi | 47% | 1329 fps | 92.6% |
| Somchem MP200² | <<locked>> | 60% | 23,279 psi | 54% | 1299 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 21,045 psi | 48% | 1234 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 25,295 psi | 58% | 1394 fps | 91.5% |
| Vihtavuori 3N37² | <<locked>> | 60% | 18,275 psi | 42% | 1220 fps | 95.9% |
| Vihtavuori 3N38*² | <<locked>> | 76% | 21,074 psi | 48% | 1316 fps | 85.6% |
| Vihtavuori N105* | <<locked>> | 80% | 18,130 psi | 42% | 1293 fps | 86.9% |
| Vihtavuori N310² | <<locked>> | 60% | 34,795 psi | 80% | 1276 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 24,221 psi | 56% | 1220 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 13,909 psi | 32% | 961 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 22,379 psi | 51% | 1247 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 20,073 psi | 46% | 1217 fps | 100% |
| Vihtavuori N350*² | <<locked>> | 60% | 16,520 psi | 38% | 1171 fps | 94.8% |
| Winchester 231² | <<locked>> | 60% | 32,329 psi | 74% | 1371 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 19,638 psi | 45% | 1188 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 65 powders for .357 Mag. loaded with the .358 | 125gr | LEE Mold 358-125-RF. Vihtavuori 3N38 delivers the highest muzzle velocity at 1,644 fps; across all powders the maximum-charge window runs from 1,024 fps to 1,644 fps. ADI AP 100 gives the best case fill at 100 %, and 30 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (300 MPa), the top charges use 33–90 %, 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, ADI AP 100, SNPE Vectan BA7 1/2 rank at the top here: for .357 Mag. with the .358 | 125gr | LEE Mold 358-125-RF 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. Alliant Herco, Baschieri & Pellagri 102 Pistol, Hodgdon TrailBoss 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.