Load Specifications
Load data in caliber .357 Maximum with .358 | 158gr | LEE Mold C358-158-SWC bullet and 66 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Baschieri & Pellagri 102 Pistol, Vihtavuori N32C Tin Star and ReloadSwiss RS 14.
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% | 36,477 psi | 81% | 1634 fps | 90.5% |
| Accurate No. 2² | <<locked>> | 68% | 40,364 psi | 90% | 1473 fps | 100% |
| Accurate No. 7² | <<locked>> | 64% | 36,056 psi | 80% | 1611 fps | 98.8% |
| Accurate No. 9² | <<locked>> | 72% | 36,782 psi | 82% | 1624 fps | 95.7% |
| Accurate Solo 1000² | <<locked>> | 68% | 37,579 psi | 84% | 1332 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 38,914 psi | 87% | 1401 fps | 100% |
| Accurate TCM² | <<locked>> | 72% | 36,738 psi | 82% | 1617 fps | 96.6% |
| ADI AP 100 | <<locked>> | 84% | 37,521 psi | 83% | 1552 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 40,205 psi | 89% | 1266 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 39,769 psi | 88% | 1293 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 39,900 psi | 89% | 1332 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 39,813 psi | 89% | 1375 fps | 100% |
| Alliant 2400* | <<locked>> | 84% | 40,205 psi | 89% | 1703 fps | 94.7% |
| Alliant BE-86² | <<locked>> | 72% | 40,176 psi | 89% | 1404 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 84% | 37,130 psi | 83% | 1621 fps | 98.5% |
| Alliant BULLSEYE² | <<locked>> | 64% | 39,682 psi | 88% | 1490 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 40,683 psi | 90% | 1388 fps | 100% |
| Alliant Herco | <<locked>> | 84% | 38,305 psi | 85% | 1473 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 68% | 36,985 psi | 82% | 1594 fps | 100% |
| Alliant Power Pro 300-MP* | <<locked>> | 88% | 36,840 psi | 82% | 1677 fps | 88.1% |
| Alliant RED DOT² | <<locked>> | 72% | 38,130 psi | 85% | 1329 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 39,682 psi | 88% | 1496 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 37,420 psi | 83% | 1332 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 40,147 psi | 89% | 1371 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 37,652 psi | 84% | 1352 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 38,203 psi | 85% | 1407 fps | 100% |
| Hodgdon Clays² | <<locked>> | 68% | 38,218 psi | 85% | 1253 fps | 100% |
| Hodgdon H110* | <<locked>> | 88% | 38,232 psi | 85% | 1699 fps | 87.8% |
| Hodgdon LilGun* | <<locked>> | 92% | 37,333 psi | 83% | 1732 fps | 94.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,321 psi | 47% | 1070 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 40,234 psi | 89% | 1434 fps | 100% |
| Lovex D037.1² | <<locked>> | 64% | 36,056 psi | 80% | 1611 fps | 98.8% |
| Lovex D037.2² | <<locked>> | 72% | 37,855 psi | 84% | 1640 fps | 96.1% |
| Lovex S020² | <<locked>> | 64% | 37,710 psi | 84% | 1424 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 39,363 psi | 88% | 1404 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 39,537 psi | 88% | 1398 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 39,624 psi | 88% | 1385 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 38,029 psi | 85% | 1345 fps | 100% |
| Maxam CSB 5² | <<locked>> | 68% | 40,393 psi | 90% | 1322 fps | 100% |
| Ramshot Enforcer | <<locked>> | 84% | 40,466 psi | 90% | 1709 fps | 95.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 19,943 psi | 44% | 1086 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 39,073 psi | 87% | 1467 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 72% | 39,160 psi | 87% | 1637 fps | 99.9% |
| Rottweil P 806² | <<locked>> | 72% | 35,766 psi | 80% | 1562 fps | 100% |
| Shooters World Heavy Pistol² | <<locked>> | 72% | 37,855 psi | 84% | 1640 fps | 96.1% |
| Shooters World Major Pistol² | <<locked>> | 64% | 36,056 psi | 80% | 1611 fps | 98.8% |
| SNPE Vectan A0² | <<locked>> | 76% | 40,234 psi | 89% | 1457 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 38,957 psi | 87% | 1388 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 38,435 psi | 85% | 1401 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 40,451 psi | 90% | 1302 fps | 100% |
| SNPE Vectan BA6 1/2*ᴾ | <<locked>> | 100% | 27,934 psi | 62% | 1493 fps | 92.6% |
| SNPE Vectan BA7 1/2² | <<locked>> | 76% | 36,593 psi | 81% | 1486 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 38,130 psi | 85% | 1401 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 64% | 37,855 psi | 84% | 1598 fps | 100% |
| Somchem MP200² | <<locked>> | 64% | 36,492 psi | 81% | 1450 fps | 100% |
| Somchem MS200² | <<locked>> | 72% | 40,393 psi | 90% | 1470 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 72% | 39,639 psi | 88% | 1535 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 84% | 39,581 psi | 88% | 1627 fps | 100% |
| Vihtavuori N105 | <<locked>> | 84% | 36,695 psi | 82% | 1614 fps | 100% |
| Vihtavuori N110*ᴾ | <<locked>> | 100% | 35,404 psi | 79% | 1650 fps | 93.6% |
| Vihtavuori N320² | <<locked>> | 64% | 36,985 psi | 82% | 1332 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 39,001 psi | 87% | 1280 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 37,724 psi | 84% | 1398 fps | 100% |
| Vihtavuori N340² | <<locked>> | 68% | 36,608 psi | 81% | 1424 fps | 100% |
| Vihtavuori N350² | <<locked>> | 76% | 38,841 psi | 86% | 1519 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 38,043 psi | 85% | 1411 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>> | 76% | 27,267 psi | 61% | 1470 fps | 85.2% |
| Accurate No. 2² | <<locked>> | 60% | 31,618 psi | 70% | 1365 fps | 100% |
| Accurate No. 7² | <<locked>> | 60% | 30,937 psi | 69% | 1526 fps | 97.4% |
| Accurate No. 9*² | <<locked>> | 60% | 23,395 psi | 52% | 1375 fps | 88.5% |
| Accurate Solo 1000² | <<locked>> | 60% | 30,385 psi | 68% | 1240 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 27,963 psi | 62% | 1260 fps | 100% |
| Accurate TCM*² | <<locked>> | 60% | 23,670 psi | 53% | 1378 fps | 90.1% |
| ADI AP 100² | <<locked>> | 60% | 19,043 psi | 42% | 1224 fps | 97.8% |
| ADI APS 350² | <<locked>> | 60% | 30,618 psi | 68% | 1148 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 30,182 psi | 67% | 1171 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 29,834 psi | 66% | 1204 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 32,430 psi | 72% | 1283 fps | 100% |
| Alliant 2400*² | <<locked>> | 68% | 23,583 psi | 52% | 1398 fps | 85.6% |
| Alliant BE-86² | <<locked>> | 60% | 28,500 psi | 63% | 1257 fps | 100% |
| Alliant BLUE DOT*² | <<locked>> | 60% | 17,535 psi | 39% | 1217 fps | 87.5% |
| Alliant BULLSEYE² | <<locked>> | 60% | 35,578 psi | 79% | 1437 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 30,139 psi | 67% | 1253 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 20,407 psi | 45% | 1198 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 28,181 psi | 63% | 1450 fps | 99.9% |
| Alliant Power Pro 300-MP* | <<locked>> | 84% | 31,894 psi | 71% | 1594 fps | 85.4% |
| Alliant RED DOT² | <<locked>> | 60% | 28,732 psi | 64% | 1204 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 28,079 psi | 62% | 1335 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 30,240 psi | 67% | 1243 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 8.4 gr | 60% | 19,653 psi | 44% | 1093 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 32,938 psi | 73% | 1296 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 30,487 psi | 68% | 1309 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 31,270 psi | 70% | 1168 fps | 100% |
| Hodgdon H110* | <<locked>> | 84% | 33,156 psi | 74% | 1617 fps | 85.1% |
| Hodgdon LilGun* | <<locked>> | 80% | 23,395 psi | 52% | 1470 fps | 86% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 9,268 psi | 21% | 801 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 32,401 psi | 72% | 1335 fps | 100% |
| Lovex D037.1² | <<locked>> | 60% | 30,937 psi | 69% | 1526 fps | 97.4% |
| Lovex D037.2*² | <<locked>> | 60% | 23,772 psi | 53% | 1385 fps | 88.8% |
| Lovex S020² | <<locked>> | 60% | 32,982 psi | 73% | 1365 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 26,092 psi | 58% | 1227 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 28,645 psi | 64% | 1263 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 28,761 psi | 64% | 1243 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 30,806 psi | 69% | 1253 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 33,388 psi | 74% | 1240 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 68% | 22,510 psi | 50% | 1385 fps | 86% |
| ReloadSwiss RS 14² | 4.9 gr | 60% | 8,572 psi | 19% | 804 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 27,456 psi | 61% | 1316 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 60% | 25,918 psi | 58% | 1417 fps | 97% |
| Rottweil P 806² | <<locked>> | 60% | 22,814 psi | 51% | 1355 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 60% | 23,772 psi | 53% | 1385 fps | 88.8% |
| Shooters World Major Pistol² | <<locked>> | 60% | 30,937 psi | 69% | 1526 fps | 97.4% |
| SNPE Vectan A0² | <<locked>> | 60% | 26,295 psi | 58% | 1270 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 31,357 psi | 70% | 1293 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 30,734 psi | 68% | 1306 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 33,257 psi | 74% | 1214 fps | 100% |
| SNPE Vectan BA6 1/2* | <<locked>> | 88% | 19,667 psi | 44% | 1309 fps | 85.8% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 22,814 psi | 51% | 1270 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 30,124 psi | 67% | 1299 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 32,532 psi | 72% | 1519 fps | 100% |
| Somchem MP200² | <<locked>> | 60% | 32,314 psi | 72% | 1394 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 28,761 psi | 64% | 1316 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 27,253 psi | 61% | 1365 fps | 100% |
| Vihtavuori 3N38*² | <<locked>> | 60% | 18,217 psi | 41% | 1230 fps | 92.9% |
| Vihtavuori N105*² | <<locked>> | 60% | 15,592 psi | 35% | 1207 fps | 94.3% |
| Vihtavuori N110* | <<locked>> | 88% | 24,192 psi | 54% | 1440 fps | 86.9% |
| Vihtavuori N320² | <<locked>> | 60% | 33,489 psi | 74% | 1289 fps | 100% |
| Vihtavuori N32C Tin Star² | 6.5 gr | 60% | 16,317 psi | 36% | 958 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 33,025 psi | 73% | 1339 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 28,645 psi | 64% | 1319 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 23,815 psi | 53% | 1299 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 27,195 psi | 60% | 1266 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 14 powders for .357 Maximum loaded with the .358 | 158gr | LEE Mold C358-158-SWC. Hodgdon LilGun delivers the highest muzzle velocity at 1,732 fps; across all powders the maximum-charge window runs from 1,070 fps to 1,732 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 14 of the 14 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. Baschieri & Pellagri 102 Pistol, Vihtavuori N32C Tin Star, ReloadSwiss RS 14 rank at the top here: for .357 Maximum with the .358 | 158gr | LEE Mold C358-158-SWC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant 2400, Hodgdon LilGun, SNPE Vectan BA6 1/2 burn incompletely and react more sensitively to barrel length and temperature. Hodgdon TrailBoss, ReloadSwiss RS 14 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.