Load Specifications
Load data in caliber .357 Maximum with .355 | 123gr | Norma FMJ TC bullet and 63 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% | 38,841 psi | 86% | 1880 fps | 87.6% |
| Accurate No. 2² | <<locked>> | 68% | 38,551 psi | 86% | 1686 fps | 100% |
| Accurate No. 7² | <<locked>> | 68% | 39,610 psi | 88% | 1893 fps | 97.7% |
| Accurate No. 9*² | <<locked>> | 76% | 40,132 psi | 89% | 1900 fps | 93.8% |
| Accurate Solo 1000² | <<locked>> | 72% | 40,001 psi | 89% | 1585 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 37,144 psi | 83% | 1611 fps | 100% |
| Accurate TCM*² | <<locked>> | 76% | 39,914 psi | 89% | 1890 fps | 94.9% |
| ADI AP 100 | <<locked>> | 88% | 39,204 psi | 87% | 1814 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 39,233 psi | 87% | 1463 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 38,812 psi | 86% | 1490 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 39,030 psi | 87% | 1535 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 39,131 psi | 87% | 1588 fps | 100% |
| Alliant 2400* | <<locked>> | 84% | 37,681 psi | 84% | 1883 fps | 90.2% |
| Alliant BE-86² | <<locked>> | 72% | 38,783 psi | 86% | 1611 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 88% | 39,233 psi | 87% | 1880 fps | 96.8% |
| Alliant BULLSEYE² | <<locked>> | 64% | 37,840 psi | 84% | 1706 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 39,218 psi | 87% | 1594 fps | 100% |
| Alliant Herco | <<locked>> | 88% | 40,263 psi | 90% | 1732 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 72% | 39,291 psi | 87% | 1873 fps | 100% |
| Alliant RED DOT² | <<locked>> | 72% | 37,565 psi | 84% | 1539 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 38,058 psi | 85% | 1713 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 40,045 psi | 89% | 1581 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 39,160 psi | 87% | 1578 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 36,318 psi | 81% | 1549 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 37,898 psi | 84% | 1476 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 96% | 39,465 psi | 88% | 1995 fps | 91.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,074 psi | 47% | 1237 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 39,392 psi | 88% | 1654 fps | 100% |
| Lovex D037.1² | <<locked>> | 68% | 39,610 psi | 88% | 1893 fps | 97.7% |
| Lovex D037.2*² | <<locked>> | 72% | 35,375 psi | 79% | 1814 fps | 91.9% |
| Lovex S020² | <<locked>> | 64% | 36,376 psi | 81% | 1634 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 37,985 psi | 84% | 1614 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 38,609 psi | 86% | 1614 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 38,276 psi | 85% | 1591 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 40,335 psi | 90% | 1594 fps | 100% |
| Maxam CSB 5² | <<locked>> | 68% | 39,421 psi | 88% | 1529 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 84% | 37,391 psi | 83% | 1883 fps | 91.3% |
| ReloadSwiss RS 12² | <<locked>> | 64% | 39,813 psi | 89% | 1611 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 19,870 psi | 44% | 1253 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 37,405 psi | 83% | 1686 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 72% | 36,695 psi | 82% | 1831 fps | 98.3% |
| Rottweil P 806² | <<locked>> | 76% | 38,711 psi | 86% | 1837 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 72% | 35,375 psi | 79% | 1814 fps | 91.9% |
| Shooters World Major Pistol² | <<locked>> | 68% | 39,610 psi | 88% | 1893 fps | 97.7% |
| SNPE Vectan A0² | <<locked>> | 76% | 38,638 psi | 86% | 1670 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 37,942 psi | 84% | 1601 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 37,289 psi | 83% | 1614 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 39,407 psi | 88% | 1499 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 80% | 38,725 psi | 86% | 1749 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 72% | 40,509 psi | 90% | 1663 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 68% | 40,611 psi | 90% | 1880 fps | 100% |
| Somchem MP200² | <<locked>> | 68% | 39,305 psi | 87% | 1722 fps | 100% |
| Somchem MS200² | <<locked>> | 72% | 38,624 psi | 86% | 1683 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 72% | 37,971 psi | 84% | 1755 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 84% | 37,318 psi | 83% | 1824 fps | 98.9% |
| Vihtavuori N105 | <<locked>> | 88% | 38,537 psi | 86% | 1883 fps | 100% |
| Vihtavuori N110*ᴾ | <<locked>> | 100% | 32,866 psi | 73% | 1814 fps | 88.4% |
| Vihtavuori N320² | <<locked>> | 68% | 40,190 psi | 89% | 1594 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 38,159 psi | 85% | 1476 fps | 100% |
| Vihtavuori N330² | <<locked>> | 68% | 40,335 psi | 90% | 1660 fps | 100% |
| Vihtavuori N340² | <<locked>> | 72% | 39,189 psi | 87% | 1690 fps | 100% |
| Vihtavuori N350² | <<locked>> | 76% | 36,796 psi | 82% | 1732 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 76% | 40,292 psi | 90% | 1667 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% | 34,243 psi | 76% | 1798 fps | 85.2% |
| Accurate No. 2² | <<locked>> | 60% | 29,878 psi | 66% | 1555 fps | 100% |
| Accurate No. 7*² | <<locked>> | 60% | 29,501 psi | 66% | 1706 fps | 94% |
| Accurate No. 9*² | <<locked>> | 64% | 25,846 psi | 57% | 1617 fps | 86.2% |
| Accurate Solo 1000² | <<locked>> | 60% | 29,486 psi | 66% | 1430 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 26,643 psi | 59% | 1444 fps | 100% |
| Accurate TCM*² | <<locked>> | 64% | 25,976 psi | 58% | 1614 fps | 87.7% |
| ADI AP 100*² | 10.9 gr | 60% | 18,449 psi | 41% | 1378 fps | 94.7% |
| ADI APS 350² | <<locked>> | 60% | 30,081 psi | 67% | 1329 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 29,182 psi | 65% | 1348 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 29,037 psi | 65% | 1388 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 32,024 psi | 71% | 1486 fps | 100% |
| Alliant 2400*² | <<locked>> | 76% | 29,240 psi | 65% | 1713 fps | 85.5% |
| Alliant BE-86² | <<locked>> | 60% | 27,659 psi | 62% | 1447 fps | 100% |
| Alliant BLUE DOT*² | 13.7 gr | 64% | 19,711 psi | 44% | 1447 fps | 85.5% |
| Alliant BULLSEYE² | <<locked>> | 60% | 33,707 psi | 75% | 1644 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 29,472 psi | 66% | 1447 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 20,073 psi | 45% | 1371 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 27,151 psi | 60% | 1640 fps | 98.5% |
| Alliant RED DOT² | <<locked>> | 60% | 28,137 psi | 63% | 1394 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 27,108 psi | 60% | 1529 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 28,979 psi | 64% | 1427 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 19,189 psi | 43% | 1253 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 32,213 psi | 72% | 1493 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 24,540 psi | 55% | 1266 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 88% | 29,399 psi | 65% | 1798 fps | 86.1% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 9,776 psi | 22% | 935 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 31,473 psi | 70% | 1539 fps | 100% |
| Lovex D037.1*² | <<locked>> | 60% | 29,501 psi | 66% | 1706 fps | 94% |
| Lovex D037.2*² | <<locked>> | 64% | 26,527 psi | 59% | 1634 fps | 86.7% |
| Lovex S020² | <<locked>> | 60% | 32,300 psi | 72% | 1575 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 24,990 psi | 56% | 1407 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 28,079 psi | 62% | 1457 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 28,224 psi | 63% | 1440 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 29,776 psi | 66% | 1444 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 32,634 psi | 73% | 1434 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 76% | 28,500 psi | 63% | 1709 fps | 86.3% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 35,665 psi | 79% | 1555 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 9,253 psi | 21% | 942 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 26,426 psi | 59% | 1509 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 60% | 24,758 psi | 55% | 1585 fps | 93.3% |
| Rottweil P 806² | <<locked>> | 60% | 22,147 psi | 49% | 1529 fps | 99.6% |
| Shooters World Heavy Pistol*² | <<locked>> | 64% | 26,527 psi | 59% | 1634 fps | 86.7% |
| Shooters World Major Pistol*² | <<locked>> | 60% | 29,501 psi | 66% | 1706 fps | 94% |
| SNPE Vectan A0² | <<locked>> | 60% | 25,164 psi | 56% | 1450 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 30,284 psi | 67% | 1486 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 29,573 psi | 66% | 1499 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 32,430 psi | 72% | 1401 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 21,828 psi | 49% | 1437 fps | 99.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 29,501 psi | 66% | 1499 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 31,183 psi | 69% | 1726 fps | 99.9% |
| Somchem MP200² | <<locked>> | 60% | 31,328 psi | 70% | 1598 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 28,108 psi | 63% | 1516 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 26,005 psi | 58% | 1549 fps | 100% |
| Vihtavuori 3N38*² | <<locked>> | 60% | 17,869 psi | 40% | 1388 fps | 88.6% |
| Vihtavuori N105*² | 12.3 gr | 60% | 14,982 psi | 33% | 1345 fps | 89.4% |
| Vihtavuori N110* | <<locked>> | 96% | 29,037 psi | 65% | 1736 fps | 86% |
| Vihtavuori N320² | <<locked>> | 60% | 32,068 psi | 71% | 1483 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 16,578 psi | 37% | 1115 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 31,923 psi | 71% | 1542 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 27,731 psi | 62% | 1512 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 22,713 psi | 51% | 1473 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 26,353 psi | 59% | 1453 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 .355 | 123gr | Norma FMJ TC. Hodgdon LilGun delivers the highest muzzle velocity at 1,995 fps; across all powders the maximum-charge window runs from 1,237 fps to 1,995 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 44–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N110 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 .355 | 123gr | Norma FMJ TC 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.