Load Specifications
Load data in caliber .357 Maximum with .355 | 124gr | Sellier & Bellot SP bullet and 62 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N105, ADI AP 100 and Alliant Herco.
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 No. 2² | <<locked>> | 68% | 38,928 psi | 87% | 1680 fps | 100% |
| Accurate No. 7² | <<locked>> | 68% | 39,233 psi | 87% | 1880 fps | 97.6% |
| Accurate No. 9*² | <<locked>> | 76% | 39,392 psi | 88% | 1877 fps | 93.6% |
| Accurate Solo 1000² | <<locked>> | 72% | 39,610 psi | 88% | 1568 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 76% | 40,582 psi | 90% | 1640 fps | 100% |
| Accurate TCM*² | <<locked>> | 76% | 39,668 psi | 88% | 1873 fps | 94.7% |
| ADI AP 100 | <<locked>> | 88% | 39,204 psi | 87% | 1804 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 39,378 psi | 88% | 1453 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 38,406 psi | 85% | 1476 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 38,624 psi | 86% | 1519 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 38,725 psi | 86% | 1572 fps | 100% |
| Alliant 2400* | <<locked>> | 84% | 37,449 psi | 83% | 1867 fps | 90.1% |
| Alliant BE-86² | <<locked>> | 72% | 38,595 psi | 86% | 1598 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 88% | 38,885 psi | 86% | 1867 fps | 96.8% |
| Alliant BULLSEYE² | <<locked>> | 64% | 38,072 psi | 85% | 1699 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 39,450 psi | 88% | 1588 fps | 100% |
| Alliant Herco | <<locked>> | 88% | 40,190 psi | 89% | 1719 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 72% | 39,175 psi | 87% | 1857 fps | 100% |
| Alliant RED DOT² | <<locked>> | 72% | 37,695 psi | 84% | 1532 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 37,811 psi | 84% | 1696 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 39,682 psi | 88% | 1568 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 38,464 psi | 86% | 1558 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 68% | 40,683 psi | 90% | 1591 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 38,087 psi | 85% | 1470 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 96% | 38,914 psi | 87% | 1975 fps | 91.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,118 psi | 47% | 1230 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 39,059 psi | 87% | 1640 fps | 100% |
| Lovex D037.1² | <<locked>> | 68% | 39,233 psi | 87% | 1880 fps | 97.6% |
| Lovex D037.2*² | <<locked>> | 72% | 35,070 psi | 78% | 1801 fps | 91.7% |
| Lovex S020² | <<locked>> | 68% | 40,567 psi | 90% | 1680 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 37,681 psi | 84% | 1598 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 38,276 psi | 85% | 1598 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 37,942 psi | 84% | 1575 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 39,943 psi | 89% | 1578 fps | 100% |
| Maxam CSB 5² | <<locked>> | 68% | 39,581 psi | 88% | 1519 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 84% | 37,246 psi | 83% | 1870 fps | 91.2% |
| ReloadSwiss RS 12² | <<locked>> | 64% | 40,089 psi | 89% | 1604 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 19,928 psi | 44% | 1247 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 37,202 psi | 83% | 1670 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 72% | 36,680 psi | 82% | 1824 fps | 98.3% |
| Rottweil P 806² | <<locked>> | 76% | 38,377 psi | 85% | 1824 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 72% | 35,070 psi | 78% | 1801 fps | 91.7% |
| Shooters World Major Pistol² | <<locked>> | 68% | 39,233 psi | 87% | 1880 fps | 97.6% |
| SNPE Vectan A0² | <<locked>> | 76% | 38,406 psi | 85% | 1657 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 37,695 psi | 84% | 1585 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 37,043 psi | 82% | 1601 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 39,015 psi | 87% | 1483 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 80% | 38,667 psi | 86% | 1736 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 72% | 40,219 psi | 89% | 1650 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 68% | 40,480 psi | 90% | 1870 fps | 100% |
| Somchem MP200² | <<locked>> | 68% | 39,088 psi | 87% | 1706 fps | 100% |
| Somchem MS200² | <<locked>> | 72% | 38,986 psi | 87% | 1677 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 72% | 37,840 psi | 84% | 1742 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 84% | 36,840 psi | 82% | 1808 fps | 98.8% |
| Vihtavuori N105 | <<locked>> | 88% | 38,058 psi | 85% | 1867 fps | 100% |
| Vihtavuori N110*ᴾ | <<locked>> | 100% | 32,242 psi | 72% | 1795 fps | 88.1% |
| Vihtavuori N320² | <<locked>> | 68% | 39,798 psi | 89% | 1578 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 37,942 psi | 84% | 1463 fps | 100% |
| Vihtavuori N330² | <<locked>> | 68% | 40,045 psi | 89% | 1644 fps | 100% |
| Vihtavuori N340² | <<locked>> | 72% | 38,986 psi | 87% | 1677 fps | 100% |
| Vihtavuori N350 | <<locked>> | 80% | 40,683 psi | 90% | 1775 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 76% | 40,205 psi | 89% | 1654 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 No. 2² | <<locked>> | 60% | 30,066 psi | 67% | 1549 fps | 100% |
| Accurate No. 7*² | <<locked>> | 60% | 29,109 psi | 65% | 1686 fps | 93.8% |
| Accurate No. 9*² | <<locked>> | 64% | 25,512 psi | 57% | 1601 fps | 86% |
| Accurate Solo 1000² | <<locked>> | 60% | 29,559 psi | 66% | 1421 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 26,731 psi | 59% | 1437 fps | 100% |
| Accurate TCM*² | <<locked>> | 64% | 26,005 psi | 58% | 1608 fps | 87.8% |
| ADI AP 100*² | 10.7 gr | 60% | 18,231 psi | 41% | 1365 fps | 94.6% |
| ADI APS 350² | <<locked>> | 60% | 30,110 psi | 67% | 1319 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 29,225 psi | 65% | 1339 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 29,080 psi | 65% | 1378 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 31,531 psi | 70% | 1467 fps | 100% |
| Alliant 2400*² | <<locked>> | 76% | 28,906 psi | 64% | 1699 fps | 85.3% |
| Alliant BE-86² | <<locked>> | 60% | 27,383 psi | 61% | 1434 fps | 100% |
| Alliant BLUE DOT*² | <<locked>> | 64% | 19,595 psi | 44% | 1437 fps | 85.4% |
| Alliant BULLSEYE² | <<locked>> | 60% | 33,881 psi | 75% | 1637 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 28,993 psi | 64% | 1427 fps | 100% |
| Alliant Herco² | 9.7 gr | 60% | 19,798 psi | 44% | 1355 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 26,934 psi | 60% | 1624 fps | 98.4% |
| Alliant RED DOT² | <<locked>> | 60% | 28,123 psi | 63% | 1385 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 27,224 psi | 61% | 1522 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 29,109 psi | 65% | 1421 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 19,232 psi | 43% | 1247 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 32,068 psi | 71% | 1480 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 24,555 psi | 55% | 1257 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 88% | 28,877 psi | 64% | 1778 fps | 85.8% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 9,674 psi | 22% | 925 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 31,618 psi | 70% | 1529 fps | 100% |
| Lovex D037.1*² | <<locked>> | 60% | 29,109 psi | 65% | 1686 fps | 93.8% |
| Lovex D037.2*² | <<locked>> | 64% | 26,237 psi | 58% | 1617 fps | 86.5% |
| Lovex S020² | <<locked>> | 60% | 31,937 psi | 71% | 1562 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 25,063 psi | 56% | 1398 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 27,644 psi | 61% | 1440 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 27,789 psi | 62% | 1421 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 29,849 psi | 66% | 1434 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 32,126 psi | 71% | 1417 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 76% | 28,268 psi | 63% | 1696 fps | 86.2% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 35,839 psi | 80% | 1545 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 9,166 psi | 20% | 932 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 26,092 psi | 58% | 1493 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 60% | 24,627 psi | 55% | 1572 fps | 93.2% |
| Rottweil P 806² | <<locked>> | 60% | 22,075 psi | 49% | 1522 fps | 99.6% |
| Shooters World Heavy Pistol*² | <<locked>> | 64% | 26,237 psi | 58% | 1617 fps | 86.5% |
| Shooters World Major Pistol*² | <<locked>> | 60% | 29,109 psi | 65% | 1686 fps | 93.8% |
| SNPE Vectan A0² | <<locked>> | 60% | 24,831 psi | 55% | 1434 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 30,429 psi | 68% | 1480 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 29,762 psi | 66% | 1493 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 32,532 psi | 72% | 1391 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 21,988 psi | 49% | 1434 fps | 99.7% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 29,138 psi | 65% | 1486 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 31,024 psi | 69% | 1709 fps | 99.9% |
| Somchem MP200² | <<locked>> | 60% | 31,067 psi | 69% | 1585 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 27,760 psi | 62% | 1499 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 25,802 psi | 57% | 1535 fps | 100% |
| Vihtavuori 3N38*² | <<locked>> | 60% | 17,695 psi | 39% | 1371 fps | 88.4% |
| Vihtavuori N105*² | 12.1 gr | 60% | 14,794 psi | 33% | 1332 fps | 89.2% |
| Vihtavuori N110* | <<locked>> | 96% | 28,863 psi | 64% | 1722 fps | 85.9% |
| Vihtavuori N320² | <<locked>> | 60% | 32,184 psi | 72% | 1473 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 16,549 psi | 37% | 1109 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 32,097 psi | 71% | 1535 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 27,905 psi | 62% | 1506 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 22,423 psi | 50% | 1460 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 26,092 psi | 58% | 1440 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 62 powders for .357 Maximum loaded with the .355 | 124gr | Sellier & Bellot SP. Hodgdon LilGun delivers the highest muzzle velocity at 1,975 fps; across all powders the maximum-charge window runs from 1,230 fps to 1,975 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 16 of the 62 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. Vihtavuori N105, ADI AP 100, Alliant Herco rank at the top here: for .357 Maximum with the .355 | 124gr | Sellier & Bellot SP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 9, Accurate TCM, 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.