Load Specifications
Load data in caliber .357 Mag. with .358 | 105gr | LEE Mold 358-105-SWC bullet and 67 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Rottweil P 806, Vihtavuori 3N37 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. 2 | <<locked>> | 80% | 39,146 psi | 90% | 1663 fps | 100% |
| Accurate No. 5² | <<locked>> | 64% | 36,811 psi | 85% | 1729 fps | 98.3% |
| Accurate No. 7* | <<locked>> | 80% | 35,940 psi | 83% | 1762 fps | 88.4% |
| Accurate Solo 1000 | <<locked>> | 80% | 36,680 psi | 84% | 1522 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 88% | 39,262 psi | 90% | 1624 fps | 100% |
| ADI AP 100ᴾ | <<locked>> | 100% | 34,795 psi | 80% | 1690 fps | 96.4% |
| ADI AP 70N² | <<locked>> | 72% | 37,478 psi | 86% | 1624 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 38,769 psi | 89% | 1421 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 38,043 psi | 87% | 1450 fps | 100% |
| ADI AS 30 | <<locked>> | 84% | 39,320 psi | 90% | 1522 fps | 100% |
| ADI AS 50N | <<locked>> | 80% | 38,566 psi | 89% | 1568 fps | 100% |
| Alliant BE-86 | <<locked>> | 84% | 37,275 psi | 86% | 1581 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 76% | 37,681 psi | 87% | 1686 fps | 100% |
| Alliant Green Dot | <<locked>> | 84% | 38,798 psi | 89% | 1575 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 35,984 psi | 83% | 1663 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 84% | 36,201 psi | 83% | 1768 fps | 96.2% |
| Alliant RED DOT | <<locked>> | 84% | 37,304 psi | 86% | 1522 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 72% | 38,870 psi | 89% | 1706 fps | 100% |
| Alliant UNIQUE | <<locked>> | 88% | 38,943 psi | 90% | 1713 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 36,303 psi | 83% | 1522 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 35,824 psi | 82% | 1529 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 36,898 psi | 85% | 1549 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 36,245 psi | 83% | 1424 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 68% | 34,824 psi | 80% | 1677 fps | 99% |
| Hodgdon Longshot² | <<locked>> | 68% | 38,725 psi | 89% | 1729 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 14,141 psi | 33% | 1093 fps | 100% |
| Hodgdon Universal | <<locked>> | 80% | 37,478 psi | 86% | 1624 fps | 100% |
| Lovex D036² | <<locked>> | 64% | 36,782 psi | 85% | 1729 fps | 98.3% |
| Lovex D037.1* | <<locked>> | 80% | 35,940 psi | 83% | 1762 fps | 88.4% |
| Lovex S011² | <<locked>> | 68% | 35,926 psi | 83% | 1545 fps | 100% |
| Lovex S020² | <<locked>> | 76% | 35,534 psi | 82% | 1614 fps | 100% |
| Maxam CSB 1 | <<locked>> | 88% | 35,810 psi | 82% | 1575 fps | 100% |
| Maxam CSB 2 | <<locked>> | 88% | 39,189 psi | 90% | 1624 fps | 100% |
| Maxam CSB 3 | <<locked>> | 84% | 37,637 psi | 87% | 1572 fps | 100% |
| Maxam CSB 4 | <<locked>> | 80% | 36,622 psi | 84% | 1535 fps | 100% |
| Maxam CSB 5² | <<locked>> | 76% | 37,173 psi | 85% | 1483 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 72% | 38,435 psi | 88% | 1699 fps | 100% |
| Ramshot True Blue² | <<locked>> | 64% | 35,041 psi | 81% | 1667 fps | 99.7% |
| ReloadSwiss RS 12² | <<locked>> | 76% | 38,421 psi | 88% | 1594 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 12,415 psi | 29% | 1079 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 88% | 38,000 psi | 87% | 1690 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 88% | 37,681 psi | 87% | 1781 fps | 91.7% |
| Rottweil P 801² | <<locked>> | 72% | 39,015 psi | 90% | 1565 fps | 100% |
| Rottweil P 806 | <<locked>> | 92% | 35,810 psi | 82% | 1778 fps | 99.5% |
| Shooters World Auto Pistol² | <<locked>> | 64% | 36,782 psi | 85% | 1729 fps | 98.3% |
| Shooters World Major Pistol* | <<locked>> | 80% | 35,940 psi | 83% | 1762 fps | 88.4% |
| SNPE Vectan A0 | <<locked>> | 88% | 36,579 psi | 84% | 1621 fps | 100% |
| SNPE Vectan A1 | <<locked>> | 80% | 38,537 psi | 89% | 1591 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 80% | 37,478 psi | 86% | 1601 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 76% | 38,899 psi | 89% | 1460 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 92% | 35,433 psi | 81% | 1663 fps | 99.5% |
| SNPE Vectan BA9 1/2 | <<locked>> | 84% | 39,117 psi | 90% | 1634 fps | 100% |
| SNPE Vectan SP 2 | <<locked>> | 80% | 36,172 psi | 83% | 1778 fps | 97.7% |
| Somchem MP200 | <<locked>> | 80% | 38,363 psi | 88% | 1690 fps | 100% |
| Somchem MS200 | <<locked>> | 84% | 36,956 psi | 85% | 1644 fps | 100% |
| Somchem S221*² | <<locked>> | 72% | 34,679 psi | 80% | 1703 fps | 93.5% |
| Vihtavuori 3N37 | <<locked>> | 88% | 39,305 psi | 90% | 1745 fps | 100% |
| Vihtavuori 3N38*ᴾ | <<locked>> | 100% | 35,476 psi | 82% | 1729 fps | 91.6% |
| Vihtavuori N105*ᴾ | <<locked>> | 100% | 29,501 psi | 68% | 1690 fps | 92.8% |
| Vihtavuori N310² | <<locked>> | 64% | 38,319 psi | 88% | 1457 fps | 100% |
| Vihtavuori N320² | <<locked>> | 76% | 35,447 psi | 81% | 1526 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 27,659 psi | 64% | 1332 fps | 100% |
| Vihtavuori N330² | <<locked>> | 76% | 35,056 psi | 81% | 1588 fps | 100% |
| Vihtavuori N340 | <<locked>> | 84% | 38,000 psi | 87% | 1657 fps | 100% |
| Vihtavuori N350 | <<locked>> | 92% | 37,594 psi | 86% | 1716 fps | 100% |
| Winchester 231² | <<locked>> | 68% | 37,115 psi | 85% | 1585 fps | 100% |
| Winchester AutoComp | <<locked>> | 88% | 38,276 psi | 88% | 1631 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% | 20,581 psi | 47% | 1339 fps | 98% |
| Accurate No. 5² | <<locked>> | 60% | 31,401 psi | 72% | 1634 fps | 96.7% |
| Accurate No. 7*² | <<locked>> | 76% | 31,444 psi | 72% | 1680 fps | 85.9% |
| Accurate Solo 1000² | <<locked>> | 60% | 21,973 psi | 51% | 1286 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 18,159 psi | 42% | 1263 fps | 100% |
| ADI AP 100*² | <<locked>> | 76% | 18,623 psi | 43% | 1335 fps | 86.3% |
| ADI AP 70N² | <<locked>> | 60% | 25,817 psi | 59% | 1440 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 24,685 psi | 57% | 1217 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 23,612 psi | 54% | 1234 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 21,582 psi | 50% | 1250 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 22,814 psi | 52% | 1322 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 18,536 psi | 43% | 1266 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 23,902 psi | 55% | 1444 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 21,292 psi | 49% | 1296 fps | 100% |
| Alliant Herco*² | <<locked>> | 60% | 12,589 psi | 29% | 1132 fps | 93.9% |
| Alliant POWER PISTOL*² | <<locked>> | 64% | 19,566 psi | 45% | 1398 fps | 85.9% |
| Alliant RED DOT² | <<locked>> | 60% | 20,552 psi | 47% | 1250 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 27,050 psi | 62% | 1512 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 17,840 psi | 41% | 1306 fps | 98.2% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 20,552 psi | 47% | 1270 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 12,459 psi | 29% | 1089 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 22,350 psi | 51% | 1329 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 19,305 psi | 44% | 1152 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 26,310 psi | 60% | 1516 fps | 96.2% |
| Hodgdon Longshot² | <<locked>> | 60% | 28,747 psi | 66% | 1565 fps | 98.5% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 5,918 psi | 14% | 787 fps | 98.1% |
| Hodgdon Universal² | <<locked>> | 60% | 21,509 psi | 49% | 1355 fps | 100% |
| Lovex D036² | <<locked>> | 60% | 31,357 psi | 72% | 1634 fps | 96.6% |
| Lovex D037.1*² | <<locked>> | 76% | 31,444 psi | 72% | 1680 fps | 85.9% |
| Lovex S011² | <<locked>> | 60% | 28,079 psi | 65% | 1430 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 21,335 psi | 49% | 1368 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 16,839 psi | 39% | 1224 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 17,651 psi | 41% | 1266 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 20,044 psi | 46% | 1280 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 21,277 psi | 49% | 1286 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 24,366 psi | 56% | 1293 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 26,397 psi | 61% | 1503 fps | 99.8% |
| Ramshot True Blue² | <<locked>> | 60% | 30,443 psi | 70% | 1591 fps | 98.9% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 24,076 psi | 55% | 1385 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 60% | 5,163 psi | 12% | 755 fps | 92.2% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 16,360 psi | 38% | 1280 fps | 99% |
| ReloadSwiss RS 24*² | <<locked>> | 76% | 26,150 psi | 60% | 1558 fps | 85.2% |
| Rottweil P 801² | <<locked>> | 60% | 27,528 psi | 63% | 1404 fps | 100% |
| Rottweil P 806*² | 12.3 gr | 68% | 14,591 psi | 34% | 1296 fps | 86.7% |
| Shooters World Auto Pistol² | <<locked>> | 60% | 31,357 psi | 72% | 1634 fps | 96.6% |
| Shooters World Major Pistol*² | <<locked>> | 76% | 31,444 psi | 72% | 1680 fps | 85.9% |
| SNPE Vectan A0² | <<locked>> | 60% | 17,347 psi | 40% | 1250 fps | 97.9% |
| SNPE Vectan A1² | <<locked>> | 60% | 21,640 psi | 50% | 1319 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 20,827 psi | 48% | 1319 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 26,368 psi | 61% | 1283 fps | 100% |
| SNPE Vectan BA7 1/2*² | 8 gr | 60% | 14,301 psi | 33% | 1184 fps | 87.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 20,175 psi | 46% | 1316 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 17,796 psi | 41% | 1368 fps | 86.4% |
| Somchem MP200² | <<locked>> | 60% | 20,972 psi | 48% | 1375 fps | 98.9% |
| Somchem MS200² | <<locked>> | 60% | 19,131 psi | 44% | 1309 fps | 99.3% |
| Somchem S221*² | <<locked>> | 60% | 22,307 psi | 51% | 1447 fps | 85.9% |
| Vihtavuori 3N37*² | 8.5 gr | 60% | 16,143 psi | 37% | 1270 fps | 91.1% |
| Vihtavuori 3N38* | <<locked>> | 88% | 25,208 psi | 58% | 1529 fps | 85.5% |
| Vihtavuori N105* | <<locked>> | 88% | 20,247 psi | 47% | 1463 fps | 85.1% |
| Vihtavuori N310² | <<locked>> | 60% | 33,634 psi | 77% | 1398 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 22,379 psi | 51% | 1322 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 10,602 psi | 24% | 978 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 20,842 psi | 48% | 1348 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 18,202 psi | 42% | 1296 fps | 98.7% |
| Vihtavuori N350*² | <<locked>> | 60% | 13,895 psi | 32% | 1198 fps | 88.8% |
| Winchester 231² | <<locked>> | 60% | 28,935 psi | 67% | 1467 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 17,695 psi | 41% | 1263 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 67 powders for .357 Mag. loaded with the .358 | 105gr | LEE Mold 358-105-SWC. ReloadSwiss RS 24 delivers the highest muzzle velocity at 1,781 fps; across all powders the maximum-charge window runs from 1,079 fps to 1,781 fps. ADI AP 100 gives the best case fill at 100 %, and 45 of the 67 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (300 MPa), the top charges use 29–90 %, leaving at least 10 % headroom. ADI AP 100, Alliant Herco, Baschieri & Pellagri 102 Pistol 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, Vihtavuori 3N37, SNPE Vectan BA7 1/2 rank at the top here: for .357 Mag. with the .358 | 105gr | LEE Mold 358-105-SWC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 7, Lovex D037.1, ReloadSwiss RS 24 burn incompletely and react more sensitively to barrel length and temperature. Baschieri & Pellagri 102 Pistol, Hodgdon TrailBoss, ReloadSwiss RS 14 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.