Load Specifications
Load data in caliber .357 SIG with .355 | 115gr | Nosler HP 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 MP200.
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% | 36,738 psi | 83% | 1375 fps | 99.7% |
| Accurate No. 5² | <<locked>> | 72% | 39,262 psi | 89% | 1490 fps | 95.5% |
| Accurate Solo 1000 | <<locked>> | 88% | 37,956 psi | 86% | 1309 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 96% | 39,813 psi | 90% | 1391 fps | 100% |
| ADI AP 100*ᴾ | <<locked>> | 100% | 28,587 psi | 65% | 1322 fps | 88.8% |
| ADI AP 70N | <<locked>> | 80% | 39,856 psi | 90% | 1414 fps | 100% |
| ADI APS 350 | <<locked>> | 84% | 38,725 psi | 88% | 1198 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 36,521 psi | 83% | 1211 fps | 100% |
| ADI AS 30 | <<locked>> | 88% | 37,130 psi | 84% | 1270 fps | 100% |
| ADI AS 50N | <<locked>> | 84% | 37,666 psi | 85% | 1325 fps | 100% |
| Alliant BE-86 | <<locked>> | 92% | 38,450 psi | 87% | 1368 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 84% | 39,059 psi | 88% | 1453 fps | 100% |
| Alliant Green Dot | <<locked>> | 88% | 37,057 psi | 84% | 1322 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 30,023 psi | 68% | 1332 fps | 99.8% |
| Alliant POWER PISTOL* | <<locked>> | 96% | 39,349 psi | 89% | 1539 fps | 93.2% |
| Alliant RED DOT | <<locked>> | 92% | 38,783 psi | 88% | 1312 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 37,202 psi | 84% | 1430 fps | 100% |
| Alliant UNIQUE | <<locked>> | 96% | 39,189 psi | 89% | 1467 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 88% | 37,188 psi | 84% | 1306 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 30,327 psi | 69% | 1243 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 38,870 psi | 88% | 1352 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 37,971 psi | 86% | 1394 fps | 100% |
| Hodgdon Clays | <<locked>> | 96% | 38,174 psi | 86% | 1227 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 35,317 psi | 80% | 1322 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 76% | 36,535 psi | 83% | 1440 fps | 96.4% |
| Hodgdon Longshot² | <<locked>> | 72% | 36,129 psi | 82% | 1434 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 12,836 psi | 29% | 889 fps | 100% |
| Hodgdon Universal | <<locked>> | 88% | 38,696 psi | 87% | 1401 fps | 100% |
| Lovex D036² | <<locked>> | 72% | 39,204 psi | 89% | 1493 fps | 95.5% |
| Lovex S011² | <<locked>> | 76% | 38,290 psi | 87% | 1342 fps | 100% |
| Lovex S020 | <<locked>> | 84% | 36,187 psi | 82% | 1381 fps | 100% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 39,262 psi | 89% | 1385 fps | 100% |
| Maxam CSB 2 | <<locked>> | 96% | 38,580 psi | 87% | 1388 fps | 100% |
| Maxam CSB 3 | <<locked>> | 92% | 38,566 psi | 87% | 1352 fps | 100% |
| Maxam CSB 4 | <<locked>> | 88% | 38,232 psi | 86% | 1325 fps | 100% |
| Maxam CSB 5 | <<locked>> | 84% | 39,407 psi | 89% | 1283 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 76% | 36,114 psi | 82% | 1417 fps | 99.8% |
| Ramshot True Blue² | <<locked>> | 72% | 37,768 psi | 85% | 1450 fps | 98.2% |
| Ramshot Zip² | <<locked>> | 68% | 39,508 psi | 89% | 1378 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 35,476 psi | 80% | 1335 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 11,647 psi | 26% | 879 fps | 99.4% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 37,492 psi | 85% | 1444 fps | 100% |
| Rottweil P 801² | <<locked>> | 76% | 37,521 psi | 85% | 1322 fps | 100% |
| Rottweil P 806ᴾ | <<locked>> | 100% | 33,025 psi | 75% | 1496 fps | 95.9% |
| Shooters World Auto Pistol² | <<locked>> | 72% | 39,204 psi | 89% | 1493 fps | 95.5% |
| SNPE Vectan A0 | <<locked>> | 96% | 36,753 psi | 83% | 1381 fps | 100% |
| SNPE Vectan A1 | <<locked>> | 88% | 39,914 psi | 90% | 1375 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 88% | 38,711 psi | 88% | 1378 fps | 100% |
| SNPE Vectan BA10 | <<locked>> | 80% | 38,841 psi | 88% | 1237 fps | 100% |
| SNPE Vectan BA7 1/2ᴾ | <<locked>> | 100% | 35,578 psi | 80% | 1407 fps | 97% |
| SNPE Vectan BA9 1/2 | <<locked>> | 88% | 37,275 psi | 84% | 1371 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 88% | 36,114 psi | 82% | 1512 fps | 93.9% |
| Somchem MP200 | <<locked>> | 88% | 38,812 psi | 88% | 1444 fps | 100% |
| Somchem MS200 | <<locked>> | 92% | 38,537 psi | 87% | 1417 fps | 100% |
| Somchem S221* | <<locked>> | 80% | 37,014 psi | 84% | 1470 fps | 89.3% |
| Vihtavuori 3N37 | <<locked>> | 96% | 38,798 psi | 88% | 1480 fps | 98.6% |
| Vihtavuori N310² | <<locked>> | 68% | 36,970 psi | 84% | 1220 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 36,898 psi | 83% | 1319 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 23,989 psi | 54% | 1086 fps | 100% |
| Vihtavuori N330 | <<locked>> | 84% | 35,592 psi | 80% | 1365 fps | 100% |
| Vihtavuori N340 | <<locked>> | 92% | 38,479 psi | 87% | 1421 fps | 100% |
| Vihtavuori N350ᴾ | <<locked>> | 100% | 36,753 psi | 83% | 1447 fps | 98.4% |
| Winchester 231² | <<locked>> | 76% | 39,508 psi | 89% | 1378 fps | 100% |
| Winchester 244² | <<locked>> | 64% | 39,059 psi | 88% | 1365 fps | 100% |
| Winchester 572² | <<locked>> | 64% | 35,679 psi | 81% | 1434 fps | 97.1% |
| Winchester AutoComp | <<locked>> | 96% | 39,059 psi | 88% | 1401 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% | 17,463 psi | 39% | 1043 fps | 92.2% |
| Accurate No. 5*² | <<locked>> | 60% | 26,121 psi | 59% | 1280 fps | 89.5% |
| Accurate Solo 1000² | <<locked>> | 60% | 19,377 psi | 44% | 1037 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 15,389 psi | 35% | 997 fps | 98.3% |
| ADI AP 100* | <<locked>> | 92% | 23,583 psi | 53% | 1227 fps | 85.2% |
| ADI AP 70N² | <<locked>> | 60% | 22,669 psi | 51% | 1165 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 22,916 psi | 52% | 997 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 21,292 psi | 48% | 1007 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 19,203 psi | 43% | 1010 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 20,247 psi | 46% | 1070 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 15,809 psi | 36% | 1010 fps | 99.7% |
| Alliant BULLSEYE² | <<locked>> | 60% | 20,320 psi | 46% | 1138 fps | 97.4% |
| Alliant Green Dot² | <<locked>> | 60% | 18,449 psi | 42% | 1037 fps | 100% |
| Alliant Herco*² | <<locked>> | 60% | 11,603 psi | 26% | 906 fps | 88.1% |
| Alliant POWER PISTOL* | <<locked>> | 80% | 26,295 psi | 59% | 1316 fps | 86.2% |
| Alliant RED DOT² | <<locked>> | 60% | 18,521 psi | 42% | 1017 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 23,221 psi | 52% | 1204 fps | 98.2% |
| Alliant UNIQUE*² | 4.8 gr | 60% | 15,621 psi | 35% | 1033 fps | 93.3% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 17,637 psi | 40% | 1014 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 11,095 psi | 25% | 876 fps | 99.4% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 18,971 psi | 43% | 1073 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 29,327 psi | 66% | 1280 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 17,840 psi | 40% | 942 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 31,241 psi | 71% | 1270 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 60% | 21,799 psi | 49% | 1184 fps | 88.8% |
| Hodgdon Longshot*² | <<locked>> | 60% | 23,946 psi | 54% | 1230 fps | 92.6% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 5,961 psi | 13% | 640 fps | 95.6% |
| Hodgdon Universal² | <<locked>> | 60% | 18,985 psi | 43% | 1089 fps | 99.8% |
| Lovex D036*² | <<locked>> | 60% | 26,165 psi | 59% | 1280 fps | 89.4% |
| Lovex S011² | <<locked>> | 60% | 23,699 psi | 54% | 1142 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 18,086 psi | 41% | 1083 fps | 97.4% |
| Maxam CSB 1² | <<locked>> | 60% | 14,837 psi | 34% | 978 fps | 98% |
| Maxam CSB 2² | <<locked>> | 60% | 14,953 psi | 34% | 1010 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 17,434 psi | 39% | 1027 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 18,811 psi | 43% | 1043 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 21,103 psi | 48% | 1043 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 22,104 psi | 50% | 1184 fps | 96% |
| Ramshot True Blue*² | <<locked>> | 60% | 25,208 psi | 57% | 1250 fps | 93.4% |
| Ramshot Zip² | <<locked>> | 60% | 31,082 psi | 70% | 1273 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 20,552 psi | 46% | 1119 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 60% | 5,744 psi | 13% | 633 fps | 90.3% |
| ReloadSwiss RS 20*² | <<locked>> | 60% | 13,808 psi | 31% | 1004 fps | 93.7% |
| Rottweil P 801² | <<locked>> | 60% | 23,844 psi | 54% | 1142 fps | 100% |
| Rottweil P 806* | <<locked>> | 84% | 19,363 psi | 44% | 1234 fps | 87% |
| Shooters World Auto Pistol*² | <<locked>> | 60% | 26,165 psi | 59% | 1280 fps | 89.4% |
| SNPE Vectan A0*² | <<locked>> | 60% | 15,171 psi | 34% | 984 fps | 92.6% |
| SNPE Vectan A1² | <<locked>> | 60% | 19,276 psi | 44% | 1070 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 18,478 psi | 42% | 1060 fps | 98.6% |
| SNPE Vectan BA10² | <<locked>> | 60% | 23,989 psi | 54% | 1050 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 72% | 17,796 psi | 40% | 1076 fps | 86.5% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 17,622 psi | 40% | 1050 fps | 99.1% |
| SNPE Vectan SP 2*² | <<locked>> | 76% | 25,048 psi | 57% | 1319 fps | 87.7% |
| Somchem MP200*² | 5.5 gr | 60% | 18,217 psi | 41% | 1089 fps | 94.2% |
| Somchem MS200² | <<locked>> | 60% | 16,984 psi | 38% | 1043 fps | 95.6% |
| Somchem S221*² | <<locked>> | 76% | 31,850 psi | 72% | 1391 fps | 86.7% |
| Vihtavuori 3N37*² | 6.2 gr | 64% | 15,447 psi | 35% | 1043 fps | 85.2% |
| Vihtavuori N310² | <<locked>> | 60% | 29,515 psi | 67% | 1135 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 18,811 psi | 43% | 1060 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 9,674 psi | 22% | 794 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 17,434 psi | 39% | 1076 fps | 99.8% |
| Vihtavuori N340*² | <<locked>> | 60% | 15,635 psi | 35% | 1020 fps | 93.7% |
| Vihtavuori N350*² | <<locked>> | 72% | 17,027 psi | 38% | 1086 fps | 87.6% |
| Winchester 231² | <<locked>> | 60% | 24,743 psi | 56% | 1181 fps | 100% |
| Winchester 244² | <<locked>> | 60% | 34,693 psi | 78% | 1312 fps | 100% |
| Winchester 572² | <<locked>> | 60% | 31,053 psi | 70% | 1365 fps | 95.5% |
| Winchester AutoComp ² | <<locked>> | 60% | 15,055 psi | 34% | 997 fps | 97.1% |
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 66 powders for .357 SIG loaded with the .355 | 115gr | Nosler HP. Alliant POWER PISTOL delivers the highest muzzle velocity at 1,539 fps; across all powders the maximum-charge window runs from 879 fps to 1,539 fps. ADI AP 100 gives the best case fill at 100 %, and 49 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 26–90 %, 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 MP200 rank at the top here: for .357 SIG with the .355 | 115gr | Nosler HP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AP 100, Alliant POWER PISTOL, SNPE Vectan SP 2 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.