Load Specifications
Load data in caliber .357 SIG 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 Alliant BULLSEYE, Somchem MP200 and Vihtavuori N330.
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: 4.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2 | <<locked>> | 88% | 36,970 psi | 84% | 1447 fps | 99.2% |
| Accurate No. 5*² | <<locked>> | 72% | 35,433 psi | 80% | 1506 fps | 92.5% |
| Accurate Solo 1000 | <<locked>> | 92% | 38,290 psi | 87% | 1388 fps | 100% |
| Accurate Solo 1250ᴾ | <<locked>> | 100% | 39,581 psi | 89% | 1470 fps | 100% |
| ADI AP 70N | <<locked>> | 84% | 38,566 psi | 87% | 1483 fps | 100% |
| ADI APS 350 | <<locked>> | 88% | 38,653 psi | 87% | 1263 fps | 100% |
| ADI APS 450 | <<locked>> | 88% | 37,405 psi | 85% | 1289 fps | 100% |
| ADI AS 30 | <<locked>> | 96% | 39,392 psi | 89% | 1375 fps | 100% |
| ADI AS 50N | <<locked>> | 92% | 39,450 psi | 89% | 1427 fps | 100% |
| Alliant BE-86 | <<locked>> | 96% | 37,753 psi | 85% | 1437 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 88% | 38,914 psi | 88% | 1529 fps | 100% |
| Alliant Green Dot | <<locked>> | 96% | 38,783 psi | 88% | 1424 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 25,382 psi | 57% | 1325 fps | 98.1% |
| Alliant POWER PISTOL*ᴾ | <<locked>> | 100% | 39,305 psi | 89% | 1608 fps | 91.3% |
| Alliant RED DOT | <<locked>> | 96% | 37,188 psi | 84% | 1375 fps | 100% |
| Alliant Sport Pistol | <<locked>> | 80% | 36,941 psi | 84% | 1506 fps | 100% |
| Alliant UNIQUEᴾ | <<locked>> | 100% | 37,927 psi | 86% | 1532 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 92% | 37,043 psi | 84% | 1381 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 26,643 psi | 60% | 1270 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 88% | 37,913 psi | 86% | 1417 fps | 100% |
| Hodgdon CFE Pistol | <<locked>> | 96% | 39,552 psi | 89% | 1483 fps | 100% |
| Hodgdon Claysᴾ | <<locked>> | 100% | 37,739 psi | 85% | 1293 fps | 100% |
| Hodgdon HP38² | <<locked>> | 68% | 36,071 psi | 82% | 1407 fps | 100% |
| Hodgdon HS-6 | <<locked>> | 80% | 36,535 psi | 83% | 1509 fps | 95% |
| Hodgdon Longshot² | <<locked>> | 76% | 36,071 psi | 82% | 1503 fps | 96.5% |
| Hodgdon TiteGroup² | <<locked>> | 64% | 38,595 psi | 87% | 1385 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 10,124 psi | 23% | 876 fps | 99.6% |
| Hodgdon Universal | <<locked>> | 92% | 37,420 psi | 85% | 1470 fps | 100% |
| Lovex D032² | <<locked>> | 64% | 39,827 psi | 90% | 1440 fps | 100% |
| Lovex D036*² | <<locked>> | 72% | 35,389 psi | 80% | 1506 fps | 92.5% |
| Lovex S011 | <<locked>> | 80% | 38,522 psi | 87% | 1421 fps | 100% |
| Lovex S020 | <<locked>> | 88% | 36,579 psi | 83% | 1467 fps | 100% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 35,375 psi | 80% | 1414 fps | 100% |
| Maxam CSB 2ᴾ | <<locked>> | 100% | 36,999 psi | 84% | 1457 fps | 100% |
| Maxam CSB 3 | <<locked>> | 96% | 37,101 psi | 84% | 1414 fps | 100% |
| Maxam CSB 4 | <<locked>> | 92% | 36,956 psi | 84% | 1388 fps | 100% |
| Maxam CSB 5 | <<locked>> | 88% | 38,377 psi | 87% | 1348 fps | 100% |
| Ramshot Silhouette | <<locked>> | 80% | 36,303 psi | 82% | 1496 fps | 99.4% |
| Ramshot True Blue² | <<locked>> | 76% | 37,898 psi | 86% | 1522 fps | 97% |
| Ramshot Zip² | <<locked>> | 68% | 35,708 psi | 81% | 1414 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 88% | 38,421 psi | 87% | 1457 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 8,760 psi | 20% | 850 fps | 95.3% |
| ReloadSwiss RS 20ᴾ | <<locked>> | 100% | 36,434 psi | 82% | 1512 fps | 100% |
| Rottweil P 801 | <<locked>> | 80% | 36,129 psi | 82% | 1391 fps | 100% |
| Rottweil P 806*ᴾ | <<locked>> | 100% | 26,527 psi | 60% | 1457 fps | 90.8% |
| Shooters World Auto Pistol*² | <<locked>> | 72% | 35,389 psi | 80% | 1506 fps | 92.5% |
| Shooters World Clean Shot² | <<locked>> | 64% | 39,827 psi | 90% | 1440 fps | 100% |
| SNPE Vectan A0ᴾ | <<locked>> | 100% | 36,332 psi | 82% | 1450 fps | 99.9% |
| SNPE Vectan A1 | <<locked>> | 92% | 39,813 psi | 90% | 1447 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 92% | 38,537 psi | 87% | 1450 fps | 100% |
| SNPE Vectan BA10 | <<locked>> | 84% | 38,624 psi | 87% | 1302 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 31,096 psi | 70% | 1407 fps | 93.9% |
| SNPE Vectan BA9 1/2 | <<locked>> | 92% | 36,651 psi | 83% | 1444 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 96% | 39,204 psi | 89% | 1634 fps | 93.4% |
| Somchem MP200 | <<locked>> | 92% | 38,957 psi | 88% | 1526 fps | 99.9% |
| Somchem MS200 | <<locked>> | 96% | 36,782 psi | 83% | 1476 fps | 100% |
| Vihtavuori 3N37ᴾ | <<locked>> | 100% | 37,594 psi | 85% | 1535 fps | 97.3% |
| Vihtavuori N310² | <<locked>> | 72% | 37,231 psi | 84% | 1299 fps | 100% |
| Vihtavuori N320 | <<locked>> | 88% | 36,390 psi | 82% | 1391 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 20,320 psi | 46% | 1106 fps | 100% |
| Vihtavuori N330 | <<locked>> | 92% | 39,552 psi | 89% | 1493 fps | 100% |
| Vihtavuori N340 | <<locked>> | 96% | 37,782 psi | 85% | 1486 fps | 100% |
| Vihtavuori N350ᴾ | <<locked>> | 100% | 31,618 psi | 71% | 1444 fps | 95.7% |
| Winchester 231² | <<locked>> | 76% | 35,708 psi | 81% | 1414 fps | 100% |
| Winchester 244² | <<locked>> | 68% | 39,972 psi | 90% | 1450 fps | 100% |
| Winchester 572² | <<locked>> | 68% | 35,694 psi | 81% | 1509 fps | 95.8% |
| Winchester AutoComp ᴾ | <<locked>> | 100% | 38,159 psi | 86% | 1473 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2*² | <<locked>> | 60% | 14,997 psi | 34% | 1037 fps | 87.6% |
| Accurate No. 5*² | <<locked>> | 60% | 23,105 psi | 52% | 1280 fps | 85.2% |
| Accurate Solo 1000² | <<locked>> | 60% | 17,680 psi | 40% | 1066 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 13,416 psi | 30% | 1004 fps | 95.5% |
| ADI AP 70N² | <<locked>> | 60% | 19,014 psi | 43% | 1165 fps | 99.4% |
| ADI APS 350² | <<locked>> | 60% | 20,523 psi | 46% | 1020 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 19,058 psi | 43% | 1027 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 16,998 psi | 38% | 1037 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 17,869 psi | 40% | 1093 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 13,605 psi | 31% | 1017 fps | 97.9% |
| Alliant BULLSEYE*² | 4.8 gr | 60% | 17,666 psi | 40% | 1138 fps | 94.3% |
| Alliant Green Dot² | <<locked>> | 60% | 16,172 psi | 37% | 1053 fps | 100% |
| Alliant Herco*² | <<locked>> | 68% | 11,487 psi | 26% | 965 fps | 85.8% |
| Alliant POWER PISTOL* | <<locked>> | 88% | 28,210 psi | 64% | 1424 fps | 85.5% |
| Alliant RED DOT² | <<locked>> | 60% | 15,476 psi | 35% | 1020 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 20,450 psi | 46% | 1207 fps | 95.5% |
| Alliant UNIQUE*² | <<locked>> | 60% | 12,734 psi | 29% | 1010 fps | 87.8% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 15,563 psi | 35% | 1033 fps | 99.7% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 8,702 psi | 20% | 853 fps | 95.8% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 16,070 psi | 36% | 1076 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 14,707 psi | 33% | 1050 fps | 96.2% |
| Hodgdon Clays² | <<locked>> | 60% | 15,650 psi | 35% | 958 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 27,876 psi | 63% | 1296 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 64% | 21,335 psi | 48% | 1237 fps | 86.3% |
| Hodgdon Longshot*² | <<locked>> | 60% | 20,827 psi | 47% | 1227 fps | 88.3% |
| Hodgdon TiteGroup² | <<locked>> | 60% | 33,924 psi | 77% | 1329 fps | 100% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 4,279 psi | 10% | 610 fps | 87.7% |
| Hodgdon Universal² | <<locked>> | 60% | 15,592 psi | 35% | 1079 fps | 97.9% |
| Lovex D032² | <<locked>> | 60% | 34,287 psi | 78% | 1375 fps | 100% |
| Lovex D036*² | <<locked>> | 60% | 23,061 psi | 52% | 1280 fps | 85.1% |
| Lovex S011² | <<locked>> | 60% | 21,828 psi | 49% | 1175 fps | 100% |
| Lovex S020*² | <<locked>> | 60% | 14,997 psi | 34% | 1070 fps | 93.6% |
| Maxam CSB 1*² | <<locked>> | 60% | 12,299 psi | 28% | 965 fps | 94.3% |
| Maxam CSB 2² | <<locked>> | 60% | 12,227 psi | 28% | 1007 fps | 98.6% |
| Maxam CSB 3² | <<locked>> | 60% | 14,736 psi | 33% | 1027 fps | 99.3% |
| Maxam CSB 4² | <<locked>> | 60% | 16,099 psi | 36% | 1050 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 19,087 psi | 43% | 1076 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 19,145 psi | 43% | 1181 fps | 92.3% |
| Ramshot True Blue*² | <<locked>> | 60% | 21,379 psi | 48% | 1234 fps | 88.8% |
| Ramshot Zip² | <<locked>> | 60% | 27,644 psi | 62% | 1299 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 16,578 psi | 37% | 1115 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 76% | 5,410 psi | 12% | 689 fps | 86.7% |
| ReloadSwiss RS 20*² | <<locked>> | 60% | 11,371 psi | 26% | 978 fps | 87.9% |
| Rottweil P 801² | <<locked>> | 60% | 19,856 psi | 45% | 1152 fps | 100% |
| Rottweil P 806* | <<locked>> | 92% | 19,740 psi | 45% | 1312 fps | 85.2% |
| Shooters World Auto Pistol*² | <<locked>> | 60% | 23,061 psi | 52% | 1280 fps | 85.1% |
| Shooters World Clean Shot² | <<locked>> | 60% | 34,287 psi | 78% | 1375 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 60% | 12,894 psi | 29% | 974 fps | 87.9% |
| SNPE Vectan A1² | <<locked>> | 60% | 16,795 psi | 38% | 1076 fps | 99% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 16,070 psi | 36% | 1060 fps | 96% |
| SNPE Vectan BA10² | <<locked>> | 60% | 21,654 psi | 49% | 1073 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 80% | 18,971 psi | 43% | 1165 fps | 85.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 14,881 psi | 34% | 1043 fps | 96.5% |
| SNPE Vectan SP 2* | <<locked>> | 84% | 26,789 psi | 61% | 1424 fps | 87% |
| Somchem MP200*² | 5.4 gr | 60% | 15,389 psi | 35% | 1076 fps | 89.6% |
| Somchem MS200*² | <<locked>> | 60% | 14,315 psi | 32% | 1033 fps | 91.3% |
| Vihtavuori 3N37*² | <<locked>> | 76% | 19,247 psi | 44% | 1204 fps | 87.3% |
| Vihtavuori N310² | <<locked>> | 60% | 27,166 psi | 61% | 1178 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 16,447 psi | 37% | 1076 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 7,092 psi | 16% | 768 fps | 99.4% |
| Vihtavuori N330² | 4.9 gr | 60% | 14,330 psi | 32% | 1066 fps | 97.8% |
| Vihtavuori N340*² | <<locked>> | 60% | 13,010 psi | 29% | 1004 fps | 88.7% |
| Vihtavuori N350* | <<locked>> | 80% | 18,246 psi | 41% | 1178 fps | 86.8% |
| Winchester 231² | <<locked>> | 60% | 21,669 psi | 49% | 1194 fps | 100% |
| Winchester 244² | <<locked>> | 60% | 31,140 psi | 70% | 1342 fps | 100% |
| Winchester 572*² | <<locked>> | 60% | 26,527 psi | 60% | 1352 fps | 91.6% |
| Winchester AutoComp *² | <<locked>> | 60% | 12,836 psi | 29% | 997 fps | 93.6% |
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 46 powders for .357 SIG loaded with the .358 | 105gr | LEE Mold 358-105-SWC. SNPE Vectan SP 2 delivers the highest muzzle velocity at 1,634 fps; across all powders the maximum-charge window runs from 850 fps to 1,634 fps. Accurate Solo 1250 gives the best case fill at 100 %, and 46 of the 46 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 20–90 %, leaving at least 10 % headroom. Accurate Solo 1250, Alliant Herco, Alliant UNIQUE 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. Alliant BULLSEYE, Somchem MP200, Vihtavuori N330 rank at the top here: for .357 SIG 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, SNPE Vectan BA7 1/2, SNPE Vectan SP 2 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.