Load Specifications
Load data in caliber .357 Maximum with .357 | 180gr | Nosler SILH bullet and 65 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N32C Tin Star, ReloadSwiss RS 14 and Hodgdon TrailBoss.
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: 7.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4100* | <<locked>> | 84% | 39,421 psi | 88% | 1549 fps | 93.3% |
| Accurate No. 2² | <<locked>> | 64% | 38,058 psi | 85% | 1319 fps | 100% |
| Accurate No. 7² | <<locked>> | 64% | 39,146 psi | 87% | 1522 fps | 99.8% |
| Accurate No. 9² | <<locked>> | 72% | 39,987 psi | 89% | 1542 fps | 97.7% |
| Accurate Solo 1000² | <<locked>> | 68% | 38,711 psi | 86% | 1227 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 40,538 psi | 90% | 1296 fps | 100% |
| Accurate TCM² | <<locked>> | 72% | 39,668 psi | 88% | 1529 fps | 98.3% |
| ADI AP 100 | <<locked>> | 84% | 39,929 psi | 89% | 1450 fps | 100% |
| ADI APS 350² | <<locked>> | 68% | 38,116 psi | 85% | 1135 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 40,524 psi | 90% | 1188 fps | 100% |
| ADI AS 30² | <<locked>> | 68% | 37,420 psi | 83% | 1184 fps | 100% |
| ADI AS 50N² | <<locked>> | 64% | 37,869 psi | 84% | 1230 fps | 100% |
| Alliant 2400 | <<locked>> | 80% | 38,203 psi | 85% | 1542 fps | 95.4% |
| Alliant BE-86² | <<locked>> | 68% | 37,985 psi | 84% | 1257 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 84% | 39,929 psi | 89% | 1529 fps | 99.6% |
| Alliant Green Dot² | <<locked>> | 68% | 38,870 psi | 86% | 1243 fps | 100% |
| Alliant Herco | <<locked>> | 84% | 40,219 psi | 89% | 1365 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 68% | 39,088 psi | 87% | 1486 fps | 100% |
| Alliant Power Pro 300-MP* | <<locked>> | 88% | 40,553 psi | 90% | 1608 fps | 91.5% |
| Alliant RED DOT² | <<locked>> | 72% | 40,059 psi | 89% | 1230 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 68% | 37,942 psi | 84% | 1342 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 39,305 psi | 87% | 1230 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 38,812 psi | 86% | 1237 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 39,479 psi | 88% | 1253 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 39,740 psi | 88% | 1178 fps | 100% |
| Hodgdon H110* | <<locked>> | 84% | 36,767 psi | 82% | 1555 fps | 89% |
| Hodgdon LilGun | <<locked>> | 88% | 35,781 psi | 80% | 1585 fps | 95.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 23,003 psi | 51% | 994 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 38,638 psi | 86% | 1286 fps | 100% |
| Lovex D037.1² | <<locked>> | 64% | 39,146 psi | 87% | 1522 fps | 99.8% |
| Lovex D037.2² | <<locked>> | 72% | 40,625 psi | 90% | 1549 fps | 97.9% |
| Lovex S020² | <<locked>> | 64% | 39,856 psi | 89% | 1319 fps | 100% |
| Maxam CSB 1² | <<locked>> | 72% | 37,623 psi | 84% | 1260 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 38,072 psi | 85% | 1257 fps | 100% |
| Maxam CSB 3² | <<locked>> | 68% | 37,188 psi | 83% | 1234 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 39,465 psi | 88% | 1240 fps | 100% |
| Maxam CSB 5² | <<locked>> | 64% | 38,305 psi | 85% | 1184 fps | 100% |
| Ramshot Enforcer | <<locked>> | 80% | 38,101 psi | 85% | 1549 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 22,031 psi | 49% | 1014 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 68% | 37,405 psi | 83% | 1319 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 68% | 37,057 psi | 82% | 1476 fps | 100% |
| ReloadSwiss RS 30*ᴾ | <<locked>> | 100% | 32,024 psi | 71% | 1496 fps | 89.8% |
| Rottweil P 806² | <<locked>> | 72% | 39,407 psi | 88% | 1473 fps | 100% |
| Shooters World Heavy Pistol² | <<locked>> | 72% | 40,625 psi | 90% | 1549 fps | 97.9% |
| Shooters World Major Pistol² | <<locked>> | 64% | 39,146 psi | 87% | 1522 fps | 99.8% |
| SNPE Vectan A0² | <<locked>> | 72% | 38,363 psi | 85% | 1309 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 64% | 36,796 psi | 82% | 1243 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 40,306 psi | 90% | 1299 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 64% | 37,623 psi | 84% | 1158 fps | 100% |
| SNPE Vectan BA6 1/2ᴾ | <<locked>> | 100% | 30,458 psi | 68% | 1424 fps | 95.4% |
| SNPE Vectan BA7 1/2² | <<locked>> | 76% | 38,638 psi | 86% | 1381 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 39,900 psi | 89% | 1296 fps | 100% |
| Somchem MP200² | <<locked>> | 64% | 38,841 psi | 86% | 1348 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 38,363 psi | 85% | 1319 fps | 100% |
| Somchem S265* | <<locked>> | 96% | 37,768 psi | 84% | 1499 fps | 88.1% |
| Vihtavuori 3N37² | <<locked>> | 68% | 37,347 psi | 83% | 1378 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 80% | 37,826 psi | 84% | 1470 fps | 100% |
| Vihtavuori N105 | <<locked>> | 84% | 39,813 psi | 89% | 1516 fps | 100% |
| Vihtavuori N110ᴾ | <<locked>> | 100% | 39,030 psi | 87% | 1575 fps | 96.3% |
| Vihtavuori N320² | <<locked>> | 64% | 38,667 psi | 86% | 1230 fps | 100% |
| Vihtavuori N32C Tin Star | <<locked>> | 96% | 38,305 psi | 85% | 1158 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 39,610 psi | 88% | 1289 fps | 100% |
| Vihtavuori N340² | <<locked>> | 68% | 38,798 psi | 86% | 1322 fps | 100% |
| Vihtavuori N350² | <<locked>> | 72% | 36,869 psi | 82% | 1365 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 40,118 psi | 89% | 1309 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 7.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4100*² | <<locked>> | 72% | 26,266 psi | 58% | 1342 fps | 86.5% |
| Accurate No. 2² | <<locked>> | 60% | 33,446 psi | 74% | 1266 fps | 100% |
| Accurate No. 7² | <<locked>> | 60% | 33,968 psi | 76% | 1450 fps | 99.1% |
| Accurate No. 9*² | <<locked>> | 60% | 25,556 psi | 57% | 1312 fps | 91.9% |
| Accurate Solo 1000² | <<locked>> | 60% | 31,618 psi | 70% | 1145 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 29,298 psi | 65% | 1165 fps | 100% |
| Accurate TCM*² | <<locked>> | 60% | 26,063 psi | 58% | 1316 fps | 93.4% |
| ADI AP 100² | <<locked>> | 60% | 20,523 psi | 46% | 1152 fps | 99.3% |
| ADI APS 350² | <<locked>> | 60% | 31,546 psi | 70% | 1056 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 30,835 psi | 69% | 1076 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 31,024 psi | 69% | 1109 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 34,301 psi | 76% | 1188 fps | 100% |
| Alliant 2400*² | <<locked>> | 64% | 22,858 psi | 51% | 1270 fps | 87% |
| Alliant BE-86² | <<locked>> | 60% | 30,530 psi | 68% | 1171 fps | 100% |
| Alliant BLUE DOT*² | <<locked>> | 60% | 19,812 psi | 44% | 1175 fps | 91.6% |
| Alliant Green Dot² | <<locked>> | 60% | 31,850 psi | 71% | 1161 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 22,249 psi | 49% | 1119 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 30,545 psi | 68% | 1368 fps | 100% |
| Alliant Power Pro 300-MP* | <<locked>> | 80% | 30,647 psi | 68% | 1457 fps | 86.7% |
| Alliant RED DOT² | <<locked>> | 60% | 30,530 psi | 68% | 1119 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 30,124 psi | 67% | 1243 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 31,502 psi | 70% | 1145 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 21,495 psi | 48% | 1020 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 34,896 psi | 78% | 1204 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 26,005 psi | 58% | 1010 fps | 100% |
| Hodgdon H110* | <<locked>> | 80% | 31,792 psi | 71% | 1473 fps | 86.3% |
| Hodgdon LilGun*² | <<locked>> | 76% | 22,858 psi | 51% | 1352 fps | 87.9% |
| Hodgdon TrailBoss² | 4.5 gr | 60% | 10,936 psi | 24% | 758 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 34,476 psi | 77% | 1240 fps | 100% |
| Lovex D037.1² | <<locked>> | 60% | 33,968 psi | 76% | 1450 fps | 99.1% |
| Lovex D037.2*² | <<locked>> | 60% | 26,397 psi | 59% | 1329 fps | 92.4% |
| Lovex S020² | <<locked>> | 60% | 35,375 psi | 79% | 1270 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 27,369 psi | 61% | 1132 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 31,227 psi | 69% | 1178 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 30,400 psi | 68% | 1152 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 32,314 psi | 72% | 1158 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 34,606 psi | 77% | 1142 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 64% | 21,669 psi | 48% | 1260 fps | 87.4% |
| ReloadSwiss RS 14² | 4.5 gr | 60% | 10,138 psi | 23% | 761 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 29,573 psi | 66% | 1224 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 60% | 28,398 psi | 63% | 1345 fps | 98.8% |
| ReloadSwiss RS 30* | <<locked>> | 96% | 28,500 psi | 63% | 1427 fps | 87.3% |
| Rottweil P 806² | <<locked>> | 60% | 25,904 psi | 58% | 1289 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 60% | 26,397 psi | 59% | 1329 fps | 92.4% |
| Shooters World Major Pistol² | <<locked>> | 60% | 33,968 psi | 76% | 1450 fps | 99.1% |
| SNPE Vectan A0² | <<locked>> | 60% | 27,818 psi | 62% | 1178 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 33,069 psi | 74% | 1201 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 32,518 psi | 72% | 1211 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 34,142 psi | 76% | 1119 fps | 100% |
| SNPE Vectan BA6 1/2* | <<locked>> | 80% | 17,637 psi | 39% | 1158 fps | 85.7% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 24,555 psi | 55% | 1191 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 32,430 psi | 72% | 1211 fps | 100% |
| Somchem MP200² | <<locked>> | 60% | 34,229 psi | 76% | 1296 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 30,545 psi | 68% | 1220 fps | 100% |
| Somchem S265* | <<locked>> | 92% | 33,330 psi | 74% | 1430 fps | 85.9% |
| Vihtavuori 3N37² | <<locked>> | 60% | 29,602 psi | 66% | 1280 fps | 100% |
| Vihtavuori 3N38² | <<locked>> | 60% | 20,494 psi | 46% | 1181 fps | 96.1% |
| Vihtavuori N105² | <<locked>> | 60% | 18,144 psi | 40% | 1168 fps | 97.8% |
| Vihtavuori N110* | <<locked>> | 80% | 20,943 psi | 47% | 1260 fps | 86.2% |
| Vihtavuori N320² | <<locked>> | 60% | 34,867 psi | 78% | 1188 fps | 100% |
| Vihtavuori N32C Tin Star² | 6 gr | 60% | 17,941 psi | 40% | 892 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 35,215 psi | 78% | 1243 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 30,676 psi | 68% | 1227 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 25,657 psi | 57% | 1214 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 28,834 psi | 64% | 1175 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 65 powders for .357 Maximum loaded with the .357 | 180gr | Nosler SILH. Alliant Power Pro 300-MP delivers the highest muzzle velocity at 1,608 fps; across all powders the maximum-charge window runs from 994 fps to 1,608 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 20 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, ReloadSwiss RS 30 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 N32C Tin Star, ReloadSwiss RS 14, Hodgdon TrailBoss rank at the top here: for .357 Maximum with the .357 | 180gr | Nosler SILH they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4100, Alliant Power Pro 300-MP, Hodgdon H110 burn incompletely and react more sensitively to barrel length and temperature. ADI APS 350, ADI APS 450, ADI AS 30 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.