Load Specifications
Load data in caliber .357 Maximum with .36 | 125gr | Rim Rock SWC?FB bullet and 64 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% | 39,726 psi | 88% | 1886 fps | 88.4% |
| Accurate No. 2² | <<locked>> | 68% | 39,073 psi | 87% | 1680 fps | 100% |
| Accurate No. 7² | <<locked>> | 68% | 40,567 psi | 90% | 1896 fps | 98.1% |
| Accurate No. 9*² | <<locked>> | 76% | 40,538 psi | 90% | 1893 fps | 94.3% |
| Accurate Solo 1000² | <<locked>> | 72% | 40,437 psi | 90% | 1578 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 37,608 psi | 84% | 1601 fps | 100% |
| Accurate TCM*² | <<locked>> | 72% | 35,534 psi | 79% | 1804 fps | 93.5% |
| ADI AP 100 | <<locked>> | 88% | 40,147 psi | 89% | 1814 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 39,610 psi | 88% | 1457 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 38,551 psi | 86% | 1476 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 38,870 psi | 86% | 1522 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 39,566 psi | 88% | 1581 fps | 100% |
| Alliant 2400* | <<locked>> | 84% | 38,580 psi | 86% | 1886 fps | 91% |
| Alliant BE-86² | <<locked>> | 72% | 39,175 psi | 87% | 1601 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 88% | 40,132 psi | 89% | 1883 fps | 97.3% |
| Alliant BULLSEYE² | <<locked>> | 64% | 38,334 psi | 85% | 1703 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 39,653 psi | 88% | 1588 fps | 100% |
| Alliant Herco | <<locked>> | 88% | 40,669 psi | 90% | 1726 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 72% | 39,740 psi | 88% | 1864 fps | 100% |
| Alliant RED DOT² | <<locked>> | 72% | 38,014 psi | 85% | 1532 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 38,609 psi | 86% | 1706 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 40,480 psi | 90% | 1578 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 39,581 psi | 88% | 1572 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 36,593 psi | 81% | 1539 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 38,247 psi | 85% | 1470 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 96% | 40,596 psi | 90% | 1998 fps | 92.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,422 psi | 48% | 1234 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 39,871 psi | 89% | 1647 fps | 100% |
| Lovex D037.1² | <<locked>> | 68% | 40,567 psi | 90% | 1896 fps | 98.1% |
| Lovex D037.2*² | <<locked>> | 72% | 36,230 psi | 81% | 1821 fps | 92.6% |
| Lovex S020² | <<locked>> | 64% | 36,883 psi | 82% | 1631 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 38,435 psi | 85% | 1608 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 39,117 psi | 87% | 1608 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 38,740 psi | 86% | 1585 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 37,115 psi | 83% | 1539 fps | 100% |
| Maxam CSB 5² | <<locked>> | 68% | 39,856 psi | 89% | 1522 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 84% | 38,348 psi | 85% | 1886 fps | 92% |
| ReloadSwiss RS 12² | <<locked>> | 64% | 40,321 psi | 90% | 1604 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 20,233 psi | 45% | 1250 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 37,971 psi | 84% | 1677 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 72% | 37,594 psi | 84% | 1837 fps | 98.7% |
| Rottweil P 806² | <<locked>> | 76% | 39,682 psi | 88% | 1834 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 72% | 36,230 psi | 81% | 1821 fps | 92.6% |
| Shooters World Major Pistol² | <<locked>> | 68% | 40,567 psi | 90% | 1896 fps | 98.1% |
| SNPE Vectan A0² | <<locked>> | 76% | 39,059 psi | 87% | 1660 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 38,319 psi | 85% | 1591 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 37,681 psi | 84% | 1608 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 39,755 psi | 88% | 1493 fps | 100% |
| SNPE Vectan BA6 1/2*ᴾ | <<locked>> | 100% | 26,643 psi | 59% | 1647 fps | 88% |
| SNPE Vectan BA7 1/2 | <<locked>> | 80% | 39,117 psi | 87% | 1739 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 36,869 psi | 82% | 1601 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 64% | 36,230 psi | 81% | 1798 fps | 100% |
| Somchem MP200² | <<locked>> | 68% | 39,769 psi | 88% | 1716 fps | 100% |
| Somchem MS200² | <<locked>> | 72% | 39,102 psi | 87% | 1677 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 72% | 38,392 psi | 85% | 1745 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 84% | 37,739 psi | 84% | 1818 fps | 99.1% |
| Vihtavuori N105 | <<locked>> | 88% | 39,117 psi | 87% | 1877 fps | 100% |
| Vihtavuori N110*ᴾ | <<locked>> | 100% | 33,808 psi | 75% | 1821 fps | 89.3% |
| Vihtavuori N320² | <<locked>> | 64% | 36,216 psi | 81% | 1529 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 38,537 psi | 86% | 1470 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 36,506 psi | 81% | 1594 fps | 100% |
| Vihtavuori N340² | <<locked>> | 72% | 39,653 psi | 88% | 1683 fps | 100% |
| Vihtavuori N350² | <<locked>> | 76% | 37,231 psi | 83% | 1722 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 37,057 psi | 82% | 1608 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>> | 84% | 34,592 psi | 77% | 1795 fps | 85.8% |
| Accurate No. 2² | <<locked>> | 60% | 30,371 psi | 68% | 1552 fps | 100% |
| Accurate No. 7*² | <<locked>> | 60% | 29,936 psi | 67% | 1703 fps | 94.5% |
| Accurate No. 9*² | <<locked>> | 64% | 26,542 psi | 59% | 1624 fps | 87.1% |
| Accurate Solo 1000² | <<locked>> | 60% | 29,907 psi | 67% | 1427 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 27,108 psi | 60% | 1440 fps | 100% |
| Accurate TCM*² | <<locked>> | 60% | 23,003 psi | 51% | 1529 fps | 85.7% |
| ADI AP 100² | 11 gr | 60% | 18,739 psi | 42% | 1375 fps | 95.2% |
| ADI APS 350² | <<locked>> | 60% | 30,501 psi | 68% | 1325 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 29,559 psi | 66% | 1345 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 29,472 psi | 66% | 1385 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 31,923 psi | 71% | 1473 fps | 100% |
| Alliant 2400*² | <<locked>> | 76% | 29,979 psi | 67% | 1719 fps | 86.3% |
| Alliant BE-86² | <<locked>> | 60% | 28,050 psi | 62% | 1440 fps | 100% |
| Alliant BLUE DOT*² | 13.8 gr | 64% | 20,015 psi | 45% | 1447 fps | 86.2% |
| Alliant BULLSEYE² | <<locked>> | 60% | 34,200 psi | 76% | 1637 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 29,892 psi | 66% | 1444 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 20,436 psi | 45% | 1368 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 27,586 psi | 61% | 1637 fps | 98.8% |
| Alliant RED DOT² | <<locked>> | 60% | 28,601 psi | 64% | 1391 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 27,586 psi | 61% | 1526 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 29,428 psi | 65% | 1421 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 19,522 psi | 43% | 1250 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 32,503 psi | 72% | 1483 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 24,932 psi | 55% | 1263 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 88% | 30,226 psi | 67% | 1801 fps | 87.1% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 9,790 psi | 22% | 928 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 31,937 psi | 71% | 1532 fps | 100% |
| Lovex D037.1*² | <<locked>> | 60% | 29,936 psi | 67% | 1703 fps | 94.5% |
| Lovex D037.2*² | <<locked>> | 64% | 26,905 psi | 60% | 1631 fps | 87.3% |
| Lovex S020² | <<locked>> | 60% | 32,227 psi | 72% | 1562 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 25,411 psi | 57% | 1404 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 28,558 psi | 64% | 1450 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 28,166 psi | 63% | 1427 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 30,211 psi | 67% | 1437 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 32,518 psi | 72% | 1421 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 76% | 28,892 psi | 64% | 1706 fps | 86.9% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 36,129 psi | 80% | 1549 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 9,500 psi | 21% | 945 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 26,426 psi | 59% | 1496 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 60% | 25,150 psi | 56% | 1581 fps | 93.9% |
| Rottweil P 806² | <<locked>> | 60% | 22,858 psi | 51% | 1532 fps | 99.8% |
| Shooters World Heavy Pistol*² | <<locked>> | 64% | 26,905 psi | 60% | 1631 fps | 87.3% |
| Shooters World Major Pistol*² | <<locked>> | 60% | 29,936 psi | 67% | 1703 fps | 94.5% |
| SNPE Vectan A0² | <<locked>> | 60% | 25,570 psi | 57% | 1447 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 30,632 psi | 68% | 1480 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 29,979 psi | 67% | 1493 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 32,822 psi | 73% | 1394 fps | 100% |
| SNPE Vectan BA6 1/2* | <<locked>> | 96% | 23,830 psi | 53% | 1575 fps | 85.6% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 22,176 psi | 49% | 1434 fps | 99.8% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 29,950 psi | 67% | 1496 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 31,705 psi | 71% | 1719 fps | 100% |
| Somchem MP200² | <<locked>> | 60% | 31,749 psi | 71% | 1594 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 28,514 psi | 63% | 1509 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 26,411 psi | 59% | 1545 fps | 100% |
| Vihtavuori 3N38*² | <<locked>> | 60% | 18,188 psi | 40% | 1385 fps | 89.3% |
| Vihtavuori N105*² | 12.4 gr | 60% | 15,316 psi | 34% | 1345 fps | 90.2% |
| Vihtavuori N110* | <<locked>> | 96% | 29,907 psi | 67% | 1745 fps | 87% |
| Vihtavuori N320² | <<locked>> | 60% | 32,576 psi | 72% | 1476 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 16,592 psi | 37% | 1106 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 32,416 psi | 72% | 1535 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 28,195 psi | 63% | 1509 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 23,119 psi | 51% | 1470 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 26,731 psi | 59% | 1450 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 64 powders for .357 Maximum loaded with the .36 | 125gr | Rim Rock SWC?FB. Hodgdon LilGun delivers the highest muzzle velocity at 1,998 fps; across all powders the maximum-charge window runs from 1,234 fps to 1,998 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 17 of the 64 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 45–90 %, 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 .36 | 125gr | Rim Rock SWC?FB they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 4100, Accurate No. 9, Accurate TCM 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.