Load Specifications
Load data in caliber .357 Maximum with .357 | 140gr | Speer JHP bullet and 63 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% | 37,507 psi | 83% | 1755 fps | 89.4% |
| Accurate No. 2² | <<locked>> | 64% | 36,260 psi | 81% | 1539 fps | 100% |
| Accurate No. 7² | <<locked>> | 64% | 37,304 psi | 83% | 1742 fps | 98.4% |
| Accurate No. 9*² | <<locked>> | 72% | 37,666 psi | 84% | 1749 fps | 94.8% |
| Accurate Solo 1000² | <<locked>> | 68% | 37,884 psi | 84% | 1447 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 39,305 psi | 87% | 1519 fps | 100% |
| Accurate TCM² | <<locked>> | 72% | 37,782 psi | 84% | 1745 fps | 95.9% |
| ADI AP 100 | <<locked>> | 84% | 38,493 psi | 86% | 1686 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 40,219 psi | 89% | 1375 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 39,958 psi | 89% | 1404 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 40,553 psi | 90% | 1447 fps | 100% |
| ADI AS 50N² | <<locked>> | 64% | 37,115 psi | 83% | 1450 fps | 100% |
| Alliant 2400* | <<locked>> | 80% | 36,448 psi | 81% | 1752 fps | 91.9% |
| Alliant BE-86² | <<locked>> | 72% | 40,480 psi | 90% | 1516 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 84% | 38,276 psi | 85% | 1752 fps | 97.9% |
| Alliant BULLSEYE² | <<locked>> | 64% | 40,059 psi | 89% | 1614 fps | 100% |
| Alliant Green Dot² | <<locked>> | 68% | 37,246 psi | 83% | 1453 fps | 100% |
| Alliant Herco | <<locked>> | 84% | 39,102 psi | 87% | 1598 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 68% | 37,376 psi | 83% | 1716 fps | 100% |
| Alliant RED DOT² | <<locked>> | 72% | 39,059 psi | 87% | 1450 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 40,582 psi | 90% | 1624 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 38,174 psi | 85% | 1450 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 37,463 psi | 83% | 1447 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 38,421 psi | 85% | 1467 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 39,073 psi | 87% | 1388 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 92% | 38,508 psi | 86% | 1864 fps | 93.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 22,597 psi | 50% | 1175 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 37,304 psi | 83% | 1509 fps | 100% |
| Lovex D037.1² | <<locked>> | 64% | 37,304 psi | 83% | 1742 fps | 98.4% |
| Lovex D037.2² | <<locked>> | 72% | 38,624 psi | 86% | 1762 fps | 95.2% |
| Lovex S020² | <<locked>> | 64% | 38,798 psi | 86% | 1549 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 40,190 psi | 89% | 1526 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 37,246 psi | 83% | 1480 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 40,219 psi | 89% | 1503 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 38,334 psi | 85% | 1457 fps | 100% |
| Maxam CSB 5² | <<locked>> | 64% | 37,028 psi | 82% | 1391 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 80% | 36,129 psi | 80% | 1752 fps | 92.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 21,074 psi | 47% | 1184 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 39,552 psi | 88% | 1591 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 72% | 40,045 psi | 89% | 1772 fps | 99.7% |
| Rottweil P 806² | <<locked>> | 72% | 37,376 psi | 83% | 1696 fps | 100% |
| Shooters World Heavy Pistol² | <<locked>> | 72% | 38,624 psi | 86% | 1762 fps | 95.2% |
| Shooters World Major Pistol² | <<locked>> | 64% | 37,304 psi | 83% | 1742 fps | 98.4% |
| SNPE Vectan A0² | <<locked>> | 72% | 36,999 psi | 82% | 1529 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 39,378 psi | 88% | 1503 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 38,827 psi | 86% | 1522 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 40,582 psi | 90% | 1411 fps | 100% |
| SNPE Vectan BA6 1/2*ᴾ | <<locked>> | 100% | 28,790 psi | 64% | 1608 fps | 91.5% |
| SNPE Vectan BA7 1/2² | <<locked>> | 76% | 37,275 psi | 83% | 1608 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 38,493 psi | 86% | 1519 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 64% | 38,986 psi | 87% | 1729 fps | 100% |
| Somchem MP200² | <<locked>> | 64% | 37,217 psi | 83% | 1572 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 36,869 psi | 82% | 1542 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 72% | 40,364 psi | 90% | 1663 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 84% | 40,335 psi | 90% | 1755 fps | 99.9% |
| Vihtavuori N105 | <<locked>> | 84% | 37,753 psi | 84% | 1745 fps | 100% |
| Vihtavuori N110*ᴾ | <<locked>> | 100% | 36,550 psi | 81% | 1772 fps | 92.6% |
| Vihtavuori N320² | <<locked>> | 64% | 37,550 psi | 84% | 1447 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 39,987 psi | 89% | 1391 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 38,319 psi | 85% | 1516 fps | 100% |
| Vihtavuori N340² | <<locked>> | 68% | 37,420 psi | 83% | 1549 fps | 100% |
| Vihtavuori N350² | <<locked>> | 76% | 39,726 psi | 88% | 1650 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 38,870 psi | 86% | 1532 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% | 33,011 psi | 73% | 1677 fps | 87.1% |
| Accurate No. 2² | <<locked>> | 60% | 31,821 psi | 71% | 1476 fps | 100% |
| Accurate No. 7² | <<locked>> | 60% | 32,140 psi | 71% | 1654 fps | 96.9% |
| Accurate No. 9*² | <<locked>> | 60% | 24,265 psi | 54% | 1486 fps | 87.5% |
| Accurate Solo 1000² | <<locked>> | 60% | 30,748 psi | 68% | 1345 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 28,224 psi | 63% | 1365 fps | 100% |
| Accurate TCM*² | <<locked>> | 60% | 24,642 psi | 55% | 1490 fps | 89.1% |
| ADI AP 100² | <<locked>> | 60% | 19,870 psi | 44% | 1325 fps | 97.3% |
| ADI APS 350² | <<locked>> | 60% | 31,430 psi | 70% | 1257 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 30,081 psi | 67% | 1266 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 30,182 psi | 67% | 1306 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 33,504 psi | 75% | 1398 fps | 100% |
| Alliant 2400*² | <<locked>> | 72% | 28,079 psi | 62% | 1591 fps | 87.2% |
| Alliant BE-86² | <<locked>> | 60% | 29,356 psi | 65% | 1368 fps | 100% |
| Alliant BLUE DOT*² | <<locked>> | 60% | 18,768 psi | 42% | 1329 fps | 87% |
| Alliant BULLSEYE² | <<locked>> | 60% | 35,708 psi | 79% | 1555 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 30,821 psi | 69% | 1362 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 21,466 psi | 48% | 1306 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 29,341 psi | 65% | 1578 fps | 99.8% |
| Alliant RED DOT² | <<locked>> | 60% | 29,849 psi | 66% | 1319 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 28,892 psi | 64% | 1450 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 30,501 psi | 68% | 1345 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 9.1 gr | 60% | 20,349 psi | 45% | 1184 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 34,113 psi | 76% | 1411 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 25,831 psi | 57% | 1198 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 80% | 24,889 psi | 55% | 1594 fps | 85.3% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 10,515 psi | 23% | 889 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 33,272 psi | 74% | 1453 fps | 100% |
| Lovex D037.1² | <<locked>> | 60% | 32,140 psi | 71% | 1654 fps | 96.9% |
| Lovex D037.2*² | <<locked>> | 60% | 24,947 psi | 55% | 1499 fps | 88% |
| Lovex S020² | <<locked>> | 60% | 33,866 psi | 75% | 1486 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 26,484 psi | 59% | 1329 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 29,849 psi | 66% | 1375 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 29,718 psi | 66% | 1358 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 31,183 psi | 69% | 1358 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 33,881 psi | 75% | 1348 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 68% | 23,583 psi | 52% | 1499 fps | 85.1% |
| ReloadSwiss RS 14² | 5.4 gr | 60% | 9,979 psi | 22% | 899 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 28,427 psi | 63% | 1434 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 60% | 27,006 psi | 60% | 1535 fps | 96.4% |
| Rottweil P 806² | <<locked>> | 60% | 24,685 psi | 55% | 1483 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 60% | 24,947 psi | 55% | 1499 fps | 88% |
| Shooters World Major Pistol² | <<locked>> | 60% | 32,140 psi | 71% | 1654 fps | 96.9% |
| SNPE Vectan A0² | <<locked>> | 60% | 26,745 psi | 59% | 1375 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 31,879 psi | 71% | 1404 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 31,285 psi | 70% | 1417 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 33,431 psi | 74% | 1316 fps | 100% |
| SNPE Vectan BA6 1/2* | <<locked>> | 88% | 20,929 psi | 47% | 1424 fps | 85.1% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 23,467 psi | 52% | 1375 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 31,212 psi | 69% | 1417 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 34,084 psi | 76% | 1654 fps | 100% |
| Somchem MP200² | <<locked>> | 60% | 33,402 psi | 74% | 1519 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 29,834 psi | 66% | 1437 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 28,108 psi | 63% | 1480 fps | 100% |
| Vihtavuori 3N38*² | <<locked>> | 60% | 19,551 psi | 43% | 1345 fps | 92.5% |
| Vihtavuori N105*² | <<locked>> | 60% | 16,781 psi | 37% | 1316 fps | 94% |
| Vihtavuori N110* | <<locked>> | 88% | 25,425 psi | 57% | 1558 fps | 86% |
| Vihtavuori N320² | <<locked>> | 60% | 33,750 psi | 75% | 1394 fps | 100% |
| Vihtavuori N32C Tin Star² | 7.1 gr | 60% | 17,448 psi | 39% | 1050 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 34,011 psi | 76% | 1460 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 29,602 psi | 66% | 1437 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 24,540 psi | 55% | 1407 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 28,050 psi | 62% | 1378 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 63 powders for .357 Maximum loaded with the .357 | 140gr | Speer JHP. Hodgdon LilGun delivers the highest muzzle velocity at 1,864 fps; across all powders the maximum-charge window runs from 1,175 fps to 1,864 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 16 of the 63 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 47–90 %, 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 .357 | 140gr | Speer JHP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4100, Accurate No. 9, Alliant 2400 burn incompletely and react more sensitively to barrel length and temperature. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N32C Tin Star 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.