Load Specifications
Load data in caliber .357 SIG with .357 | 110gr | Speer JHP 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 3N37, Alliant UNIQUE and Somchem MS200.
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>> | 84% | 35,375 psi | 80% | 1391 fps | 99.3% |
| Accurate No. 5*² | <<locked>> | 72% | 38,769 psi | 88% | 1519 fps | 94.7% |
| Accurate Solo 1000 | <<locked>> | 88% | 38,000 psi | 86% | 1345 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 96% | 38,435 psi | 87% | 1414 fps | 100% |
| ADI AP 100*ᴾ | <<locked>> | 100% | 27,470 psi | 62% | 1332 fps | 87.1% |
| ADI AP 70N | <<locked>> | 80% | 38,450 psi | 87% | 1437 fps | 100% |
| ADI APS 350 | <<locked>> | 84% | 37,898 psi | 86% | 1224 fps | 100% |
| ADI APS 450 | <<locked>> | 88% | 39,160 psi | 89% | 1273 fps | 100% |
| ADI AS 30 | <<locked>> | 92% | 39,668 psi | 90% | 1332 fps | 100% |
| ADI AS 50N | <<locked>> | 88% | 39,987 psi | 90% | 1388 fps | 100% |
| Alliant BE-86 | <<locked>> | 92% | 37,130 psi | 84% | 1391 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 84% | 37,797 psi | 85% | 1476 fps | 100% |
| Alliant Green Dot | <<locked>> | 92% | 39,320 psi | 89% | 1385 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 28,935 psi | 65% | 1345 fps | 99.5% |
| Alliant POWER PISTOL* | <<locked>> | 96% | 38,754 psi | 88% | 1565 fps | 92.1% |
| Alliant RED DOT | <<locked>> | 92% | 37,652 psi | 85% | 1335 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 35,984 psi | 81% | 1450 fps | 100% |
| Alliant UNIQUE | <<locked>> | 96% | 37,797 psi | 85% | 1486 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 88% | 37,130 psi | 84% | 1342 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 29,211 psi | 66% | 1266 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 37,463 psi | 85% | 1371 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 36,593 psi | 83% | 1414 fps | 100% |
| Hodgdon Clays | <<locked>> | 96% | 37,260 psi | 84% | 1253 fps | 100% |
| Hodgdon HP38² | <<locked>> | 68% | 39,595 psi | 90% | 1411 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 76% | 36,042 psi | 81% | 1467 fps | 95.7% |
| Hodgdon Longshot² | <<locked>> | 76% | 39,566 psi | 89% | 1516 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 12,357 psi | 28% | 899 fps | 100% |
| Hodgdon Universal | <<locked>> | 88% | 37,376 psi | 84% | 1424 fps | 100% |
| Lovex D036*² | <<locked>> | 72% | 38,696 psi | 87% | 1519 fps | 94.7% |
| Lovex S011² | <<locked>> | 76% | 37,072 psi | 84% | 1365 fps | 100% |
| Lovex S020 | <<locked>> | 88% | 39,581 psi | 89% | 1460 fps | 100% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 39,030 psi | 88% | 1417 fps | 100% |
| Maxam CSB 2 | <<locked>> | 96% | 38,218 psi | 86% | 1424 fps | 100% |
| Maxam CSB 3 | <<locked>> | 92% | 37,289 psi | 84% | 1375 fps | 100% |
| Maxam CSB 4 | <<locked>> | 88% | 37,028 psi | 84% | 1348 fps | 100% |
| Maxam CSB 5 | <<locked>> | 84% | 38,290 psi | 87% | 1309 fps | 100% |
| Ramshot Silhouette | <<locked>> | 80% | 39,813 psi | 90% | 1503 fps | 99.9% |
| Ramshot True Blue² | <<locked>> | 72% | 36,376 psi | 82% | 1467 fps | 97.3% |
| Ramshot Zip² | <<locked>> | 68% | 38,189 psi | 86% | 1401 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 84% | 38,566 psi | 87% | 1411 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 11,240 psi | 25% | 889 fps | 98.8% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 35,882 psi | 81% | 1463 fps | 100% |
| Rottweil P 801² | <<locked>> | 76% | 36,260 psi | 82% | 1345 fps | 100% |
| Rottweil P 806*ᴾ | <<locked>> | 100% | 31,865 psi | 72% | 1509 fps | 94.7% |
| Shooters World Auto Pistol*² | <<locked>> | 72% | 38,696 psi | 87% | 1519 fps | 94.7% |
| SNPE Vectan A0ᴾ | <<locked>> | 100% | 39,581 psi | 89% | 1453 fps | 100% |
| SNPE Vectan A1 | <<locked>> | 88% | 38,682 psi | 87% | 1398 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 88% | 37,478 psi | 85% | 1401 fps | 100% |
| SNPE Vectan BA10 | <<locked>> | 80% | 37,956 psi | 86% | 1260 fps | 100% |
| SNPE Vectan BA7 1/2ᴾ | <<locked>> | 100% | 34,185 psi | 77% | 1421 fps | 96% |
| SNPE Vectan BA9 1/2 | <<locked>> | 92% | 39,247 psi | 89% | 1434 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 92% | 38,319 psi | 87% | 1581 fps | 94% |
| Somchem MP200 | <<locked>> | 88% | 38,392 psi | 87% | 1476 fps | 100% |
| Somchem MS200 | <<locked>> | 92% | 37,275 psi | 84% | 1440 fps | 100% |
| Somchem S221* | <<locked>> | 84% | 40,016 psi | 90% | 1545 fps | 89.7% |
| Vihtavuori 3N37 | <<locked>> | 96% | 38,174 psi | 86% | 1506 fps | 98.1% |
| Vihtavuori N310² | <<locked>> | 68% | 37,246 psi | 84% | 1260 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 36,796 psi | 83% | 1355 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 23,134 psi | 52% | 1106 fps | 100% |
| Vihtavuori N330 | <<locked>> | 88% | 38,769 psi | 88% | 1440 fps | 100% |
| Vihtavuori N340 | <<locked>> | 92% | 37,028 psi | 84% | 1437 fps | 100% |
| Vihtavuori N350ᴾ | <<locked>> | 100% | 35,244 psi | 80% | 1460 fps | 97.6% |
| Winchester 231² | <<locked>> | 76% | 39,291 psi | 89% | 1414 fps | 100% |
| Winchester 244² | <<locked>> | 64% | 37,811 psi | 85% | 1385 fps | 100% |
| Winchester 572² | <<locked>> | 68% | 39,349 psi | 89% | 1522 fps | 97.6% |
| Winchester AutoComp | <<locked>> | 96% | 37,652 psi | 85% | 1424 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% | 17,564 psi | 40% | 1073 fps | 91.5% |
| Accurate No. 5*² | <<locked>> | 60% | 25,179 psi | 57% | 1289 fps | 87.9% |
| Accurate Solo 1000² | <<locked>> | 60% | 18,811 psi | 43% | 1053 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 15,476 psi | 35% | 1024 fps | 97.9% |
| ADI AP 100* | <<locked>> | 96% | 25,324 psi | 57% | 1289 fps | 85.6% |
| ADI AP 70N² | <<locked>> | 60% | 21,872 psi | 49% | 1181 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 22,350 psi | 51% | 1017 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 20,769 psi | 47% | 1024 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 19,450 psi | 44% | 1043 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 20,378 psi | 46% | 1102 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 15,795 psi | 36% | 1037 fps | 99.5% |
| Alliant BULLSEYE² | <<locked>> | 60% | 20,363 psi | 46% | 1168 fps | 96.9% |
| Alliant Green Dot² | <<locked>> | 60% | 18,623 psi | 42% | 1066 fps | 100% |
| Alliant Herco*² | <<locked>> | 60% | 11,197 psi | 25% | 915 fps | 86.5% |
| Alliant POWER PISTOL* | <<locked>> | 84% | 28,195 psi | 64% | 1385 fps | 86.6% |
| Alliant RED DOT² | <<locked>> | 60% | 17,970 psi | 41% | 1033 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 22,481 psi | 51% | 1217 fps | 97.4% |
| Alliant UNIQUE*² | 4.8 gr | 60% | 15,069 psi | 34% | 1043 fps | 91.9% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 17,753 psi | 40% | 1043 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 10,704 psi | 24% | 886 fps | 98.8% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 18,275 psi | 41% | 1086 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 28,297 psi | 64% | 1299 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 17,376 psi | 39% | 961 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 31,169 psi | 70% | 1302 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 60% | 20,987 psi | 47% | 1194 fps | 87.2% |
| Hodgdon Longshot*² | <<locked>> | 60% | 23,047 psi | 52% | 1240 fps | 91.1% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 5,802 psi | 13% | 646 fps | 94.6% |
| Hodgdon Universal² | <<locked>> | 60% | 18,304 psi | 41% | 1102 fps | 99.5% |
| Lovex D036*² | <<locked>> | 60% | 25,135 psi | 57% | 1289 fps | 87.8% |
| Lovex S011² | <<locked>> | 60% | 23,801 psi | 54% | 1175 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 17,390 psi | 39% | 1093 fps | 96.4% |
| Maxam CSB 1² | <<locked>> | 60% | 14,315 psi | 32% | 988 fps | 97.1% |
| Maxam CSB 2² | <<locked>> | 60% | 14,315 psi | 32% | 1024 fps | 99.8% |
| Maxam CSB 3² | <<locked>> | 60% | 16,810 psi | 38% | 1043 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 18,231 psi | 41% | 1056 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 21,335 psi | 48% | 1076 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 21,277 psi | 48% | 1194 fps | 94.8% |
| Ramshot True Blue*² | <<locked>> | 60% | 24,207 psi | 55% | 1260 fps | 92% |
| Ramshot Zip² | <<locked>> | 60% | 30,008 psi | 68% | 1296 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 19,740 psi | 45% | 1135 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 60% | 5,584 psi | 13% | 643 fps | 89% |
| ReloadSwiss RS 20*² | <<locked>> | 60% | 13,271 psi | 30% | 1010 fps | 92.2% |
| Rottweil P 801² | <<locked>> | 60% | 22,974 psi | 52% | 1158 fps | 100% |
| Rottweil P 806* | <<locked>> | 84% | 18,652 psi | 42% | 1243 fps | 85.2% |
| Shooters World Auto Pistol*² | <<locked>> | 60% | 25,135 psi | 57% | 1289 fps | 87.8% |
| SNPE Vectan A0*² | <<locked>> | 60% | 14,678 psi | 33% | 994 fps | 91.3% |
| SNPE Vectan A1² | <<locked>> | 60% | 18,695 psi | 42% | 1083 fps | 99.9% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 17,883 psi | 40% | 1070 fps | 97.9% |
| SNPE Vectan BA10² | <<locked>> | 60% | 23,409 psi | 53% | 1070 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 76% | 18,724 psi | 42% | 1125 fps | 86.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 17,027 psi | 38% | 1063 fps | 98.5% |
| SNPE Vectan SP 2*² | <<locked>> | 76% | 23,859 psi | 54% | 1322 fps | 85.9% |
| Somchem MP200*² | <<locked>> | 60% | 17,579 psi | 40% | 1099 fps | 92.9% |
| Somchem MS200*² | 4.9 gr | 60% | 16,418 psi | 37% | 1056 fps | 94.4% |
| Somchem S221*² | <<locked>> | 76% | 31,314 psi | 71% | 1411 fps | 85.4% |
| Vihtavuori 3N37*² | 6.6 gr | 68% | 16,868 psi | 38% | 1109 fps | 86% |
| Vihtavuori N310² | <<locked>> | 60% | 28,674 psi | 65% | 1155 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 18,898 psi | 43% | 1089 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 9,297 psi | 21% | 804 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 16,723 psi | 38% | 1089 fps | 99.5% |
| Vihtavuori N340*² | <<locked>> | 60% | 15,084 psi | 34% | 1030 fps | 92.4% |
| Vihtavuori N350*² | <<locked>> | 72% | 16,346 psi | 37% | 1093 fps | 85.8% |
| Winchester 231² | <<locked>> | 60% | 24,743 psi | 56% | 1211 fps | 100% |
| Winchester 244² | <<locked>> | 60% | 33,562 psi | 76% | 1332 fps | 100% |
| Winchester 572*² | <<locked>> | 60% | 29,805 psi | 67% | 1375 fps | 94.3% |
| Winchester AutoComp ² | <<locked>> | 60% | 15,026 psi | 34% | 1020 fps | 96.6% |
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 66 powders for .357 SIG loaded with the .357 | 110gr | Speer JHP. SNPE Vectan SP 2 delivers the highest muzzle velocity at 1,581 fps; across all powders the maximum-charge window runs from 889 fps to 1,581 fps. ADI AP 100 gives the best case fill at 100 %, and 50 of the 66 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 25–90 %, 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. Vihtavuori 3N37, Alliant UNIQUE, Somchem MS200 rank at the top here: for .357 SIG with the .357 | 110gr | Speer JHP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 5, ADI AP 100, Alliant POWER PISTOL burn incompletely and react more sensitively to barrel length and temperature. Accurate No. 2, Accurate Solo 1000, Accurate Solo 1250 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.