Load Specifications
Load data in caliber .357 Maximum with .358 | 158gr | LEE Mold 358-158-RF 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% | 38,609 psi | 86% | 1677 fps | 91.9% |
| Accurate No. 2² | <<locked>> | 64% | 36,680 psi | 82% | 1440 fps | 100% |
| Accurate No. 7² | <<locked>> | 64% | 37,971 psi | 84% | 1650 fps | 99.3% |
| Accurate No. 9² | <<locked>> | 72% | 38,783 psi | 86% | 1667 fps | 96.7% |
| Accurate Solo 1000² | <<locked>> | 68% | 38,522 psi | 86% | 1355 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 39,668 psi | 88% | 1424 fps | 100% |
| Accurate TCM² | <<locked>> | 72% | 38,290 psi | 85% | 1650 fps | 97.3% |
| ADI AP 100 | <<locked>> | 84% | 38,725 psi | 86% | 1581 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 40,495 psi | 90% | 1283 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 39,871 psi | 89% | 1309 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 40,190 psi | 89% | 1345 fps | 100% |
| ADI AS 50N² | <<locked>> | 64% | 37,391 psi | 83% | 1358 fps | 100% |
| Alliant 2400* | <<locked>> | 80% | 36,912 psi | 82% | 1663 fps | 93.9% |
| Alliant BE-86² | <<locked>> | 68% | 36,840 psi | 82% | 1375 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 84% | 38,957 psi | 87% | 1660 fps | 99% |
| Alliant BULLSEYE² | <<locked>> | 64% | 40,553 psi | 90% | 1512 fps | 100% |
| Alliant Green Dot² | <<locked>> | 68% | 37,550 psi | 84% | 1362 fps | 100% |
| Alliant Herco | <<locked>> | 84% | 39,117 psi | 87% | 1493 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 68% | 37,884 psi | 84% | 1614 fps | 100% |
| Alliant Power Pro 300-MP* | <<locked>> | 88% | 39,276 psi | 87% | 1726 fps | 89.7% |
| Alliant RED DOT² | <<locked>> | 72% | 39,247 psi | 87% | 1355 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 40,321 psi | 90% | 1512 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 38,247 psi | 85% | 1352 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 37,869 psi | 84% | 1358 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 38,638 psi | 86% | 1371 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 39,305 psi | 87% | 1430 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 39,581 psi | 88% | 1299 fps | 100% |
| Hodgdon LilGun | <<locked>> | 92% | 40,147 psi | 89% | 1785 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 22,234 psi | 49% | 1096 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 37,086 psi | 82% | 1407 fps | 100% |
| Lovex D037.1² | <<locked>> | 64% | 37,971 psi | 84% | 1650 fps | 99.3% |
| Lovex D037.2² | <<locked>> | 72% | 39,871 psi | 89% | 1683 fps | 97% |
| Lovex S020² | <<locked>> | 64% | 39,146 psi | 87% | 1450 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 40,625 psi | 90% | 1427 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 37,057 psi | 82% | 1381 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 40,437 psi | 90% | 1404 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 38,305 psi | 85% | 1358 fps | 100% |
| Maxam CSB 5² | <<locked>> | 64% | 37,275 psi | 83% | 1299 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 80% | 36,840 psi | 82% | 1667 fps | 94.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 20,450 psi | 45% | 1102 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 40,321 psi | 90% | 1493 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 68% | 35,752 psi | 80% | 1598 fps | 99.7% |
| Rottweil P 806² | <<locked>> | 72% | 37,565 psi | 84% | 1591 fps | 100% |
| Shooters World Heavy Pistol² | <<locked>> | 72% | 39,871 psi | 89% | 1683 fps | 97% |
| Shooters World Major Pistol² | <<locked>> | 64% | 37,971 psi | 84% | 1650 fps | 99.3% |
| SNPE Vectan A0² | <<locked>> | 72% | 37,594 psi | 84% | 1437 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 39,958 psi | 89% | 1411 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 39,508 psi | 88% | 1427 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 40,509 psi | 90% | 1316 fps | 100% |
| SNPE Vectan BA6 1/2*ᴾ | <<locked>> | 100% | 29,414 psi | 65% | 1532 fps | 93.8% |
| SNPE Vectan BA7 1/2² | <<locked>> | 76% | 37,811 psi | 84% | 1512 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 38,769 psi | 86% | 1421 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 64% | 39,407 psi | 88% | 1627 fps | 100% |
| Somchem MP200² | <<locked>> | 64% | 37,666 psi | 84% | 1473 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 37,159 psi | 83% | 1440 fps | 100% |
| Somchem S265*ᴾ | <<locked>> | 100% | 40,234 psi | 89% | 1670 fps | 88% |
| Vihtavuori 3N37² | <<locked>> | 68% | 36,260 psi | 81% | 1503 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 80% | 36,506 psi | 81% | 1594 fps | 99.9% |
| Vihtavuori N105 | <<locked>> | 84% | 38,493 psi | 86% | 1647 fps | 100% |
| Vihtavuori N110*ᴾ | <<locked>> | 100% | 37,811 psi | 84% | 1693 fps | 94.8% |
| Vihtavuori N320² | <<locked>> | 64% | 38,043 psi | 85% | 1355 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 39,421 psi | 88% | 1296 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 38,580 psi | 86% | 1417 fps | 100% |
| Vihtavuori N340² | <<locked>> | 68% | 37,913 psi | 84% | 1450 fps | 100% |
| Vihtavuori N350² | <<locked>> | 76% | 40,321 psi | 90% | 1549 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 38,899 psi | 87% | 1430 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% | 28,877 psi | 64% | 1512 fps | 86.8% |
| Accurate No. 2² | <<locked>> | 60% | 32,590 psi | 72% | 1388 fps | 100% |
| Accurate No. 7² | <<locked>> | 60% | 32,358 psi | 72% | 1562 fps | 98.1% |
| Accurate No. 9*² | <<locked>> | 60% | 24,569 psi | 55% | 1411 fps | 89.8% |
| Accurate Solo 1000² | <<locked>> | 60% | 30,951 psi | 69% | 1257 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 28,471 psi | 63% | 1280 fps | 100% |
| Accurate TCM*² | <<locked>> | 60% | 24,497 psi | 54% | 1404 fps | 91.1% |
| ADI AP 100² | <<locked>> | 60% | 19,682 psi | 44% | 1247 fps | 98.4% |
| ADI APS 350² | <<locked>> | 60% | 31,299 psi | 70% | 1168 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 30,676 psi | 68% | 1191 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 30,501 psi | 68% | 1224 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 33,562 psi | 75% | 1309 fps | 100% |
| Alliant 2400*² | <<locked>> | 68% | 24,758 psi | 55% | 1434 fps | 87% |
| Alliant BE-86² | <<locked>> | 60% | 29,225 psi | 65% | 1276 fps | 100% |
| Alliant BLUE DOT*² | <<locked>> | 60% | 18,579 psi | 41% | 1257 fps | 89% |
| Alliant BULLSEYE² | <<locked>> | 60% | 36,564 psi | 81% | 1460 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 30,719 psi | 68% | 1273 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 20,813 psi | 46% | 1214 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 29,283 psi | 65% | 1480 fps | 100% |
| Alliant Power Pro 300-MP* | <<locked>> | 84% | 33,823 psi | 75% | 1637 fps | 87% |
| Alliant RED DOT² | <<locked>> | 60% | 29,530 psi | 66% | 1227 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 29,066 psi | 65% | 1362 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 30,690 psi | 68% | 1260 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 8.8 gr | 60% | 20,073 psi | 45% | 1106 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 34,069 psi | 76% | 1319 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 31,256 psi | 70% | 1329 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 25,643 psi | 57% | 1115 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 80% | 24,932 psi | 55% | 1512 fps | 87.8% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 9,703 psi | 22% | 820 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 33,402 psi | 74% | 1358 fps | 100% |
| Lovex D037.1² | <<locked>> | 60% | 32,358 psi | 72% | 1562 fps | 98.1% |
| Lovex D037.2*² | <<locked>> | 60% | 24,932 psi | 55% | 1417 fps | 90.1% |
| Lovex S020² | <<locked>> | 60% | 34,505 psi | 77% | 1394 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 26,585 psi | 59% | 1243 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 29,762 psi | 66% | 1286 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 29,863 psi | 66% | 1270 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 31,372 psi | 70% | 1270 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 33,997 psi | 76% | 1260 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 68% | 23,554 psi | 52% | 1417 fps | 87.3% |
| ReloadSwiss RS 14² | 5.2 gr | 60% | 8,992 psi | 20% | 823 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 28,398 psi | 63% | 1339 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 60% | 27,137 psi | 60% | 1450 fps | 97.7% |
| Rottweil P 806² | <<locked>> | 60% | 23,844 psi | 53% | 1381 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 60% | 24,932 psi | 55% | 1417 fps | 90.1% |
| Shooters World Major Pistol² | <<locked>> | 60% | 32,358 psi | 72% | 1562 fps | 98.1% |
| SNPE Vectan A0² | <<locked>> | 60% | 26,658 psi | 59% | 1283 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 32,024 psi | 71% | 1312 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 31,459 psi | 70% | 1325 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 33,634 psi | 75% | 1230 fps | 100% |
| SNPE Vectan BA6 1/2* | <<locked>> | 88% | 20,711 psi | 46% | 1345 fps | 87.4% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 23,409 psi | 52% | 1289 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 31,038 psi | 69% | 1322 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 34,156 psi | 76% | 1552 fps | 100% |
| Somchem MP200² | <<locked>> | 60% | 33,591 psi | 75% | 1421 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 29,675 psi | 66% | 1339 fps | 100% |
| Somchem S265* | <<locked>> | 96% | 35,882 psi | 80% | 1604 fps | 86% |
| Vihtavuori 3N37² | <<locked>> | 60% | 28,326 psi | 63% | 1391 fps | 100% |
| Vihtavuori 3N38*² | <<locked>> | 60% | 19,058 psi | 42% | 1260 fps | 93.9% |
| Vihtavuori N105² | <<locked>> | 60% | 16,563 psi | 37% | 1237 fps | 95.5% |
| Vihtavuori N110* | <<locked>> | 84% | 22,249 psi | 49% | 1404 fps | 85.5% |
| Vihtavuori N320² | <<locked>> | 60% | 33,997 psi | 76% | 1306 fps | 100% |
| Vihtavuori N32C Tin Star² | 6.9 gr | 60% | 17,013 psi | 38% | 978 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 33,997 psi | 76% | 1362 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 29,530 psi | 66% | 1342 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 24,555 psi | 55% | 1322 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 27,847 psi | 62% | 1286 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 11 powders for .357 Maximum loaded with the .358 | 158gr | LEE Mold 358-158-RF. Hodgdon LilGun delivers the highest muzzle velocity at 1,785 fps; across all powders the maximum-charge window runs from 1,096 fps to 1,785 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 11 of the 11 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 45–89 %, leaving at least 11 % 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 358-158-RF they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, SNPE Vectan BA6 1/2, Vihtavuori N110 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.