Load Specifications
Load data in caliber .357 SIG with .355 | 100gr | Sellier & Bellot SP bullet and 68 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 Hodgdon Universal.
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% | 35,998 psi | 81% | 1457 fps | 98.4% |
| Accurate No. 5*² | <<locked>> | 76% | 39,044 psi | 88% | 1581 fps | 92.8% |
| Accurate Solo 1000 | <<locked>> | 92% | 38,435 psi | 87% | 1417 fps | 100% |
| Accurate Solo 1250ᴾ | <<locked>> | 100% | 38,667 psi | 87% | 1486 fps | 100% |
| ADI AP 70N | <<locked>> | 84% | 38,348 psi | 87% | 1506 fps | 100% |
| ADI APS 350 | <<locked>> | 88% | 38,667 psi | 87% | 1289 fps | 100% |
| ADI APS 450 | <<locked>> | 92% | 40,001 psi | 90% | 1345 fps | 100% |
| ADI AS 30 | <<locked>> | 96% | 39,987 psi | 90% | 1404 fps | 100% |
| ADI AS 50N | <<locked>> | 88% | 36,637 psi | 83% | 1417 fps | 100% |
| Alliant BE-86 | <<locked>> | 96% | 37,289 psi | 84% | 1460 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 88% | 37,927 psi | 86% | 1545 fps | 100% |
| Alliant Green Dot | <<locked>> | 96% | 39,523 psi | 89% | 1457 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 26,397 psi | 60% | 1362 fps | 97.8% |
| Alliant POWER PISTOL*ᴾ | <<locked>> | 100% | 37,913 psi | 86% | 1611 fps | 89.5% |
| Alliant RED DOT | <<locked>> | 96% | 37,782 psi | 85% | 1404 fps | 100% |
| Alliant Sport Pistol | <<locked>> | 80% | 36,114 psi | 82% | 1519 fps | 99.8% |
| Alliant UNIQUEᴾ | <<locked>> | 100% | 37,681 psi | 85% | 1555 fps | 99.9% |
| Baschieri & Pellagri 100 | <<locked>> | 96% | 39,900 psi | 90% | 1440 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 26,498 psi | 60% | 1289 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 88% | 37,753 psi | 85% | 1444 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 72% | 37,681 psi | 85% | 1496 fps | 100% |
| Hodgdon Claysᴾ | <<locked>> | 100% | 37,942 psi | 86% | 1322 fps | 100% |
| Hodgdon HP38² | <<locked>> | 68% | 36,448 psi | 82% | 1440 fps | 100% |
| Hodgdon HS-6* | <<locked>> | 80% | 36,303 psi | 82% | 1529 fps | 93.9% |
| Hodgdon Longshot² | <<locked>> | 76% | 35,781 psi | 81% | 1522 fps | 95.5% |
| Hodgdon TiteGroup² | <<locked>> | 64% | 37,782 psi | 85% | 1401 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 11,081 psi | 25% | 909 fps | 99.7% |
| Hodgdon Universal | <<locked>> | 92% | 37,275 psi | 84% | 1493 fps | 100% |
| Lovex D032² | <<locked>> | 64% | 39,972 psi | 90% | 1470 fps | 100% |
| Lovex D036*² | <<locked>> | 76% | 38,972 psi | 88% | 1581 fps | 92.7% |
| Lovex S011 | <<locked>> | 80% | 38,725 psi | 88% | 1447 fps | 100% |
| Lovex S020 | <<locked>> | 92% | 39,755 psi | 90% | 1529 fps | 100% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 34,809 psi | 79% | 1434 fps | 100% |
| Maxam CSB 2ᴾ | <<locked>> | 100% | 36,579 psi | 83% | 1480 fps | 100% |
| Maxam CSB 3 | <<locked>> | 96% | 37,449 psi | 85% | 1444 fps | 100% |
| Maxam CSB 4 | <<locked>> | 92% | 37,188 psi | 84% | 1417 fps | 100% |
| Maxam CSB 5 | <<locked>> | 88% | 38,522 psi | 87% | 1378 fps | 100% |
| Ramshot Silhouette | <<locked>> | 80% | 35,839 psi | 81% | 1512 fps | 98.9% |
| Ramshot True Blue² | <<locked>> | 76% | 37,536 psi | 85% | 1542 fps | 96.1% |
| Ramshot Zip² | <<locked>> | 72% | 39,566 psi | 89% | 1486 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 88% | 38,130 psi | 86% | 1483 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 10,022 psi | 23% | 892 fps | 96.4% |
| ReloadSwiss RS 20ᴾ | <<locked>> | 100% | 35,607 psi | 80% | 1529 fps | 100% |
| Rottweil P 801 | <<locked>> | 80% | 37,130 psi | 84% | 1427 fps | 100% |
| Rottweil P 806*ᴾ | <<locked>> | 100% | 26,266 psi | 59% | 1473 fps | 89.4% |
| Shooters World Auto Pistol*² | <<locked>> | 76% | 38,972 psi | 88% | 1581 fps | 92.7% |
| Shooters World Clean Shot² | <<locked>> | 64% | 39,972 psi | 90% | 1470 fps | 100% |
| Shooters World Ultimate Pistol² | <<locked>> | 64% | 39,769 psi | 90% | 1558 fps | 100% |
| SNPE Vectan A0ᴾ | <<locked>> | 100% | 35,665 psi | 81% | 1467 fps | 99.7% |
| SNPE Vectan A1 | <<locked>> | 92% | 39,131 psi | 88% | 1467 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 92% | 37,826 psi | 86% | 1470 fps | 100% |
| SNPE Vectan BA10 | <<locked>> | 84% | 38,696 psi | 87% | 1329 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 30,922 psi | 70% | 1424 fps | 92.8% |
| SNPE Vectan BA9 1/2 | <<locked>> | 96% | 39,392 psi | 89% | 1503 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 96% | 37,884 psi | 86% | 1637 fps | 91.7% |
| Somchem MP200 | <<locked>> | 92% | 38,551 psi | 87% | 1545 fps | 99.7% |
| Somchem MS200 | <<locked>> | 96% | 37,434 psi | 85% | 1509 fps | 100% |
| Vihtavuori 3N37ᴾ | <<locked>> | 100% | 37,246 psi | 84% | 1555 fps | 96.3% |
| Vihtavuori N310² | <<locked>> | 72% | 37,449 psi | 85% | 1325 fps | 100% |
| Vihtavuori N320 | <<locked>> | 92% | 39,349 psi | 89% | 1453 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 20,479 psi | 46% | 1122 fps | 100% |
| Vihtavuori N330 | <<locked>> | 92% | 38,653 psi | 87% | 1512 fps | 100% |
| Vihtavuori N340 | <<locked>> | 96% | 37,231 psi | 84% | 1506 fps | 99.9% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 31,299 psi | 71% | 1460 fps | 94.5% |
| Winchester 231 | <<locked>> | 80% | 39,566 psi | 89% | 1486 fps | 100% |
| Winchester 244² | <<locked>> | 68% | 39,247 psi | 89% | 1470 fps | 100% |
| Winchester 572*² | <<locked>> | 68% | 35,259 psi | 80% | 1522 fps | 94.7% |
| Winchester AutoComp ᴾ | <<locked>> | 100% | 37,753 psi | 85% | 1493 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% | 15,476 psi | 35% | 1060 fps | 86.9% |
| Accurate No. 5*² | <<locked>> | 64% | 26,571 psi | 60% | 1371 fps | 86.4% |
| Accurate Solo 1000² | <<locked>> | 60% | 17,985 psi | 41% | 1086 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 13,996 psi | 32% | 1030 fps | 95.2% |
| ADI AP 70N² | <<locked>> | 60% | 20,030 psi | 45% | 1201 fps | 99.4% |
| ADI APS 350² | <<locked>> | 60% | 20,595 psi | 47% | 1040 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 19,189 psi | 43% | 1047 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 17,680 psi | 40% | 1063 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 18,637 psi | 42% | 1119 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 13,895 psi | 31% | 1033 fps | 97.4% |
| Alliant BULLSEYE*² | 4.7 gr | 60% | 18,043 psi | 41% | 1161 fps | 93.6% |
| Alliant Green Dot² | <<locked>> | 60% | 16,969 psi | 38% | 1083 fps | 100% |
| Alliant Herco*² | <<locked>> | 68% | 12,560 psi | 28% | 1007 fps | 86.4% |
| Alliant POWER PISTOL* | <<locked>> | 92% | 31,357 psi | 71% | 1503 fps | 86.1% |
| Alliant RED DOT² | <<locked>> | 60% | 16,940 psi | 38% | 1063 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 20,827 psi | 47% | 1234 fps | 94.9% |
| Alliant UNIQUE*² | <<locked>> | 60% | 13,663 psi | 31% | 1043 fps | 87.9% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 16,172 psi | 37% | 1056 fps | 99.5% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 9,558 psi | 22% | 889 fps | 96.3% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 16,346 psi | 37% | 1096 fps | 99.9% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 25,556 psi | 58% | 1312 fps | 99.8% |
| Hodgdon Clays² | <<locked>> | 60% | 15,896 psi | 36% | 978 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 28,282 psi | 64% | 1325 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 68% | 24,700 psi | 56% | 1322 fps | 87.7% |
| Hodgdon Longshot*² | <<locked>> | 60% | 20,900 psi | 47% | 1243 fps | 87.1% |
| Hodgdon TiteGroup² | <<locked>> | 60% | 33,214 psi | 75% | 1345 fps | 100% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 5,323 psi | 12% | 653 fps | 91.1% |
| Hodgdon Universal² | 4.6 gr | 60% | 16,636 psi | 38% | 1112 fps | 97.9% |
| Lovex D032² | <<locked>> | 60% | 34,461 psi | 78% | 1404 fps | 100% |
| Lovex D036*² | <<locked>> | 64% | 26,513 psi | 60% | 1368 fps | 86.3% |
| Lovex S011² | <<locked>> | 60% | 21,277 psi | 48% | 1181 fps | 99.9% |
| Lovex S020*² | <<locked>> | 60% | 15,722 psi | 36% | 1096 fps | 93.2% |
| Maxam CSB 1*² | <<locked>> | 60% | 12,937 psi | 29% | 991 fps | 94.2% |
| Maxam CSB 2² | <<locked>> | 60% | 12,589 psi | 28% | 1027 fps | 98.3% |
| Maxam CSB 3² | <<locked>> | 60% | 15,258 psi | 34% | 1053 fps | 99.2% |
| Maxam CSB 4² | <<locked>> | 60% | 16,549 psi | 37% | 1073 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 19,421 psi | 44% | 1099 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 19,145 psi | 43% | 1194 fps | 91.1% |
| Ramshot True Blue*² | <<locked>> | 60% | 22,046 psi | 50% | 1263 fps | 88% |
| Ramshot Zip² | <<locked>> | 60% | 27,238 psi | 62% | 1316 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 17,593 psi | 40% | 1152 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 64% | 5,366 psi | 12% | 663 fps | 85.8% |
| ReloadSwiss RS 20*² | <<locked>> | 60% | 12,024 psi | 27% | 1007 fps | 87.7% |
| Rottweil P 801² | <<locked>> | 60% | 20,856 psi | 47% | 1184 fps | 100% |
| Rottweil P 806* | <<locked>> | 96% | 22,800 psi | 52% | 1404 fps | 86.8% |
| Shooters World Auto Pistol*² | <<locked>> | 64% | 26,513 psi | 60% | 1368 fps | 86.3% |
| Shooters World Clean Shot² | <<locked>> | 60% | 34,461 psi | 78% | 1404 fps | 100% |
| Shooters World Ultimate Pistol² | <<locked>> | 60% | 34,330 psi | 78% | 1483 fps | 99.9% |
| SNPE Vectan A0*² | <<locked>> | 60% | 13,445 psi | 30% | 1001 fps | 87.4% |
| SNPE Vectan A1² | <<locked>> | 60% | 16,679 psi | 38% | 1086 fps | 98.5% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 15,940 psi | 36% | 1070 fps | 95% |
| SNPE Vectan BA10² | <<locked>> | 60% | 21,770 psi | 49% | 1096 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 84% | 20,885 psi | 47% | 1224 fps | 86.1% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 15,563 psi | 35% | 1073 fps | 96.3% |
| SNPE Vectan SP 2* | <<locked>> | 84% | 26,890 psi | 61% | 1447 fps | 85.7% |
| Somchem MP200*² | 5.3 gr | 60% | 16,186 psi | 37% | 1106 fps | 89.3% |
| Somchem MS200*² | <<locked>> | 60% | 15,055 psi | 34% | 1063 fps | 91.1% |
| Vihtavuori 3N37*² | <<locked>> | 76% | 19,334 psi | 44% | 1220 fps | 86.2% |
| Vihtavuori N310² | <<locked>> | 60% | 26,368 psi | 60% | 1184 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 16,998 psi | 38% | 1106 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 8,514 psi | 19% | 820 fps | 99.9% |
| Vihtavuori N330² | <<locked>> | 60% | 14,939 psi | 34% | 1096 fps | 97.5% |
| Vihtavuori N340*² | <<locked>> | 60% | 13,706 psi | 31% | 1033 fps | 88.5% |
| Vihtavuori N350* | <<locked>> | 80% | 18,289 psi | 41% | 1191 fps | 85.4% |
| Winchester 231² | <<locked>> | 60% | 22,220 psi | 50% | 1220 fps | 99.9% |
| Winchester 244² | <<locked>> | 60% | 30,560 psi | 69% | 1358 fps | 100% |
| Winchester 572*² | <<locked>> | 60% | 27,093 psi | 61% | 1381 fps | 90.7% |
| Winchester AutoComp *² | <<locked>> | 60% | 13,256 psi | 30% | 1014 fps | 93.1% |
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 68 powders for .357 SIG loaded with the .355 | 100gr | Sellier & Bellot SP. SNPE Vectan SP 2 delivers the highest muzzle velocity at 1,637 fps; across all powders the maximum-charge window runs from 892 fps to 1,637 fps. Accurate Solo 1250 gives the best case fill at 100 %, and 53 of the 68 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 23–90 %, leaving at least 10 % headroom. Accurate Solo 1250, Alliant Herco, Alliant POWER 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. Alliant BULLSEYE, Somchem MP200, Hodgdon Universal rank at the top here: for .357 SIG with the .355 | 100gr | Sellier & Bellot SP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 5, Alliant POWER PISTOL, Hodgdon HS-6 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.