Load Specifications
Load data in caliber .357 Maximum with .357 | 158gr | H&N RN HS bullet and 65 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant BLUE DOT, Vihtavuori N105 and ADI AP 100.
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>> | 88% | 40,161 psi | 89% | 1677 fps | 91.7% |
| Accurate No. 2² | <<locked>> | 68% | 39,711 psi | 88% | 1457 fps | 100% |
| Accurate No. 7² | <<locked>> | 64% | 35,114 psi | 78% | 1588 fps | 98.4% |
| Accurate No. 9² | <<locked>> | 72% | 35,592 psi | 79% | 1598 fps | 95% |
| Accurate Solo 1000² | <<locked>> | 72% | 40,306 psi | 90% | 1355 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 37,492 psi | 83% | 1378 fps | 100% |
| Accurate TCM² | <<locked>> | 72% | 35,491 psi | 79% | 1588 fps | 95.9% |
| ADI AP 100 | <<locked>> | 88% | 40,538 psi | 90% | 1581 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 40,045 psi | 89% | 1257 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 39,088 psi | 87% | 1273 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 39,030 psi | 87% | 1312 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 39,740 psi | 88% | 1362 fps | 100% |
| Alliant 2400* | <<locked>> | 84% | 38,493 psi | 86% | 1667 fps | 93.8% |
| Alliant BE-86² | <<locked>> | 72% | 39,233 psi | 87% | 1385 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 88% | 40,234 psi | 89% | 1657 fps | 98.9% |
| Alliant BULLSEYE² | <<locked>> | 64% | 38,914 psi | 87% | 1473 fps | 100% |
| Alliant Green Dot² | <<locked>> | 68% | 37,492 psi | 83% | 1332 fps | 100% |
| Alliant Herco | <<locked>> | 88% | 40,524 psi | 90% | 1493 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 72% | 40,495 psi | 90% | 1634 fps | 100% |
| Alliant Power Pro 300-MP* | <<locked>> | 92% | 40,683 psi | 90% | 1726 fps | 89.4% |
| Alliant RED DOT² | <<locked>> | 72% | 37,855 psi | 84% | 1319 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 38,406 psi | 85% | 1473 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 40,292 psi | 90% | 1355 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 39,334 psi | 87% | 1352 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 36,521 psi | 81% | 1332 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 38,899 psi | 87% | 1270 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 92% | 35,302 psi | 79% | 1696 fps | 93.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 20,972 psi | 47% | 1060 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 39,537 psi | 88% | 1417 fps | 100% |
| Lovex D037.1² | <<locked>> | 64% | 35,114 psi | 78% | 1588 fps | 98.4% |
| Lovex D037.2² | <<locked>> | 72% | 36,695 psi | 82% | 1614 fps | 95.4% |
| Lovex S020² | <<locked>> | 64% | 37,014 psi | 82% | 1407 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 38,769 psi | 86% | 1388 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 38,798 psi | 86% | 1381 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 38,899 psi | 87% | 1365 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 37,173 psi | 83% | 1325 fps | 100% |
| Maxam CSB 5² | <<locked>> | 68% | 40,234 psi | 89% | 1312 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 84% | 38,305 psi | 85% | 1670 fps | 94.8% |
| ReloadSwiss RS 12² | <<locked>> | 64% | 40,306 psi | 90% | 1385 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 19,609 psi | 44% | 1076 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 37,855 psi | 84% | 1447 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 72% | 38,043 psi | 85% | 1614 fps | 99.7% |
| Rottweil P 806² | <<locked>> | 76% | 39,363 psi | 88% | 1601 fps | 100% |
| Shooters World Heavy Pistol² | <<locked>> | 72% | 36,695 psi | 82% | 1614 fps | 95.4% |
| Shooters World Major Pistol² | <<locked>> | 64% | 35,114 psi | 78% | 1588 fps | 98.4% |
| SNPE Vectan A0² | <<locked>> | 76% | 39,175 psi | 87% | 1434 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 38,580 psi | 86% | 1375 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 38,000 psi | 85% | 1388 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 39,784 psi | 88% | 1283 fps | 100% |
| SNPE Vectan BA6 1/2*ᴾ | <<locked>> | 100% | 26,701 psi | 59% | 1463 fps | 91.5% |
| SNPE Vectan BA7 1/2 | <<locked>> | 80% | 39,450 psi | 88% | 1512 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 37,492 psi | 83% | 1388 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 64% | 36,245 psi | 81% | 1568 fps | 100% |
| Somchem MP200² | <<locked>> | 68% | 39,900 psi | 89% | 1483 fps | 100% |
| Somchem MS200² | <<locked>> | 72% | 39,885 psi | 89% | 1457 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 72% | 38,798 psi | 86% | 1519 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 84% | 37,884 psi | 84% | 1594 fps | 99.9% |
| Vihtavuori N105 | <<locked>> | 88% | 40,001 psi | 89% | 1650 fps | 100% |
| Vihtavuori N110*ᴾ | <<locked>> | 100% | 33,837 psi | 75% | 1614 fps | 92.6% |
| Vihtavuori N320² | <<locked>> | 68% | 40,596 psi | 90% | 1362 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 37,956 psi | 84% | 1260 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 36,985 psi | 82% | 1381 fps | 100% |
| Vihtavuori N340² | <<locked>> | 72% | 40,205 psi | 89% | 1457 fps | 100% |
| Vihtavuori N350² | <<locked>> | 76% | 37,913 psi | 84% | 1499 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 37,115 psi | 83% | 1391 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* | <<locked>> | 80% | 30,197 psi | 67% | 1519 fps | 86.8% |
| Accurate No. 2² | <<locked>> | 60% | 30,777 psi | 68% | 1345 fps | 100% |
| Accurate No. 7² | <<locked>> | 60% | 29,907 psi | 67% | 1503 fps | 96.9% |
| Accurate No. 9*² | <<locked>> | 60% | 22,553 psi | 50% | 1348 fps | 87.5% |
| Accurate Solo 1000² | <<locked>> | 60% | 29,994 psi | 67% | 1227 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 27,006 psi | 60% | 1240 fps | 100% |
| Accurate TCM*² | <<locked>> | 60% | 22,800 psi | 51% | 1348 fps | 89% |
| ADI AP 100² | 9.5 gr | 60% | 18,478 psi | 41% | 1201 fps | 97.3% |
| ADI APS 350² | <<locked>> | 60% | 30,777 psi | 68% | 1142 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 29,820 psi | 66% | 1158 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 29,341 psi | 65% | 1191 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 32,068 psi | 71% | 1270 fps | 100% |
| Alliant 2400*² | <<locked>> | 72% | 25,860 psi | 58% | 1440 fps | 87.1% |
| Alliant BE-86² | <<locked>> | 60% | 27,862 psi | 62% | 1243 fps | 100% |
| Alliant BLUE DOT*² | 11.2 gr | 60% | 17,158 psi | 38% | 1204 fps | 86.8% |
| Alliant BULLSEYE² | <<locked>> | 60% | 34,708 psi | 77% | 1417 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 30,893 psi | 69% | 1247 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 19,725 psi | 44% | 1178 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 27,644 psi | 61% | 1434 fps | 99.8% |
| Alliant Power Pro 300-MP* | <<locked>> | 88% | 35,041 psi | 78% | 1640 fps | 86.8% |
| Alliant RED DOT² | <<locked>> | 60% | 28,166 psi | 63% | 1191 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 27,224 psi | 61% | 1316 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 29,327 psi | 65% | 1224 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 19,348 psi | 43% | 1079 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 32,242 psi | 72% | 1280 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 25,063 psi | 56% | 1089 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 84% | 26,034 psi | 58% | 1522 fps | 88% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 9,021 psi | 20% | 791 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 31,517 psi | 70% | 1319 fps | 100% |
| Lovex D037.1² | <<locked>> | 60% | 29,907 psi | 67% | 1503 fps | 96.9% |
| Lovex D037.2*² | <<locked>> | 60% | 22,931 psi | 51% | 1358 fps | 87.8% |
| Lovex S020² | <<locked>> | 60% | 32,169 psi | 72% | 1348 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 25,179 psi | 56% | 1207 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 28,268 psi | 63% | 1250 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 28,355 psi | 63% | 1230 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 30,400 psi | 68% | 1240 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 32,996 psi | 73% | 1227 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 72% | 24,772 psi | 55% | 1430 fps | 87.6% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 36,056 psi | 80% | 1335 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 8,340 psi | 19% | 794 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 26,643 psi | 59% | 1296 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 60% | 25,135 psi | 56% | 1391 fps | 96.4% |
| Rottweil P 806² | <<locked>> | 60% | 21,770 psi | 48% | 1329 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 60% | 22,931 psi | 51% | 1358 fps | 87.8% |
| Shooters World Major Pistol² | <<locked>> | 60% | 29,907 psi | 67% | 1503 fps | 96.9% |
| SNPE Vectan A0² | <<locked>> | 60% | 25,541 psi | 57% | 1250 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 30,734 psi | 68% | 1276 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 30,081 psi | 67% | 1289 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 32,996 psi | 73% | 1201 fps | 100% |
| SNPE Vectan BA6 1/2* | <<locked>> | 92% | 21,306 psi | 47% | 1345 fps | 87.1% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 22,307 psi | 50% | 1253 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 29,892 psi | 66% | 1289 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 31,444 psi | 70% | 1496 fps | 100% |
| Somchem MP200² | <<locked>> | 60% | 31,662 psi | 70% | 1378 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 28,529 psi | 63% | 1306 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 26,223 psi | 58% | 1339 fps | 100% |
| Vihtavuori 3N38*² | <<locked>> | 60% | 17,753 psi | 39% | 1214 fps | 92.2% |
| Vihtavuori N105*² | 10.7 gr | 60% | 14,721 psi | 33% | 1175 fps | 93.2% |
| Vihtavuori N110* | <<locked>> | 88% | 22,727 psi | 51% | 1404 fps | 85.4% |
| Vihtavuori N320² | <<locked>> | 60% | 32,460 psi | 72% | 1270 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 16,215 psi | 36% | 951 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 32,140 psi | 71% | 1322 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 27,847 psi | 62% | 1299 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 22,713 psi | 51% | 1273 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 26,600 psi | 59% | 1253 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 | 158gr | H&N RN HS. Alliant Power Pro 300-MP delivers the highest muzzle velocity at 1,726 fps; across all powders the maximum-charge window runs from 1,060 fps to 1,726 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 18 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 44–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, SNPE Vectan BA6 1/2 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 BLUE DOT, Vihtavuori N105, ADI AP 100 rank at the top here: for .357 Maximum with the .357 | 158gr | H&N RN HS they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4100, Alliant 2400, Alliant Power Pro 300-MP burn incompletely and react more sensitively to barrel length and temperature. Baschieri & Pellagri 102 Pistol, Hodgdon Clays, 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.