Load Specifications
Load data in caliber .357 Maximum with .356 | 125gr | SNS Coated Bullets RN bullet and 63 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AP 100, Baschieri & Pellagri 102 Pistol and Vihtavuori N32C Tin Star.
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% | 40,118 psi | 89% | 1680 fps | 100% |
| Accurate No. 7² | <<locked>> | 64% | 36,230 psi | 81% | 1808 fps | 96.8% |
| Accurate No. 9*² | <<locked>> | 72% | 36,521 psi | 81% | 1808 fps | 92.5% |
| Accurate Solo 1000² | <<locked>> | 72% | 40,437 psi | 90% | 1562 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 38,072 psi | 85% | 1591 fps | 100% |
| Accurate TCM*² | <<locked>> | 72% | 36,564 psi | 81% | 1801 fps | 93.6% |
| ADI AP 100 | <<locked>> | 84% | 37,144 psi | 83% | 1752 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 39,798 psi | 89% | 1444 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 38,928 psi | 87% | 1467 fps | 100% |
| ADI AS 30² | <<locked>> | 72% | 39,639 psi | 88% | 1516 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 40,567 psi | 90% | 1575 fps | 100% |
| Alliant 2400* | <<locked>> | 84% | 39,552 psi | 88% | 1886 fps | 91.1% |
| Alliant BE-86² | <<locked>> | 72% | 40,089 psi | 89% | 1598 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 84% | 36,680 psi | 82% | 1808 fps | 96.1% |
| Alliant BULLSEYE² | <<locked>> | 64% | 39,175 psi | 87% | 1696 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 40,654 psi | 90% | 1581 fps | 100% |
| Alliant Herco | <<locked>> | 84% | 38,247 psi | 85% | 1673 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 68% | 36,100 psi | 80% | 1785 fps | 100% |
| Alliant RED DOT² | <<locked>> | 72% | 38,812 psi | 86% | 1529 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 39,508 psi | 88% | 1699 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 37,101 psi | 83% | 1516 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 40,596 psi | 90% | 1565 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 37,753 psi | 84% | 1539 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 38,624 psi | 86% | 1608 fps | 100% |
| Hodgdon Clays² | <<locked>> | 68% | 37,405 psi | 83% | 1424 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 92% | 36,071 psi | 80% | 1903 fps | 90.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 22,524 psi | 50% | 1230 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 40,683 psi | 90% | 1640 fps | 100% |
| Lovex D037.1² | <<locked>> | 64% | 36,230 psi | 81% | 1808 fps | 96.8% |
| Lovex D037.2*² | <<locked>> | 72% | 37,405 psi | 83% | 1824 fps | 92.8% |
| Lovex S020² | <<locked>> | 64% | 37,695 psi | 84% | 1621 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 38,986 psi | 87% | 1594 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 40,132 psi | 89% | 1601 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 39,015 psi | 87% | 1572 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 37,826 psi | 84% | 1535 fps | 100% |
| Maxam CSB 5² | <<locked>> | 68% | 40,451 psi | 90% | 1516 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 84% | 39,581 psi | 88% | 1893 fps | 92.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 21,625 psi | 48% | 1253 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 38,711 psi | 86% | 1673 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 72% | 38,638 psi | 86% | 1834 fps | 98.7% |
| Rottweil P 806² | <<locked>> | 72% | 37,014 psi | 82% | 1775 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 72% | 37,405 psi | 83% | 1824 fps | 92.8% |
| Shooters World Major Pistol² | <<locked>> | 64% | 36,230 psi | 81% | 1808 fps | 96.8% |
| SNPE Vectan A0² | <<locked>> | 76% | 39,624 psi | 88% | 1654 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 38,827 psi | 86% | 1585 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 38,159 psi | 85% | 1601 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 40,118 psi | 89% | 1483 fps | 100% |
| SNPE Vectan BA6 1/2*ᴾ | <<locked>> | 100% | 28,079 psi | 62% | 1660 fps | 88.7% |
| SNPE Vectan BA7 1/2 | <<locked>> | 80% | 40,292 psi | 90% | 1739 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 38,029 psi | 85% | 1598 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 64% | 37,884 psi | 84% | 1808 fps | 100% |
| Somchem MP200² | <<locked>> | 68% | 40,654 psi | 90% | 1709 fps | 100% |
| Somchem MS200² | <<locked>> | 72% | 40,321 psi | 90% | 1677 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 72% | 39,639 psi | 88% | 1749 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 84% | 39,015 psi | 87% | 1821 fps | 99.2% |
| Vihtavuori N105 | <<locked>> | 88% | 40,654 psi | 90% | 1883 fps | 100% |
| Vihtavuori N110*ᴾ | <<locked>> | 100% | 35,070 psi | 78% | 1831 fps | 89.7% |
| Vihtavuori N320² | <<locked>> | 64% | 37,159 psi | 83% | 1522 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 39,436 psi | 88% | 1460 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 37,811 psi | 84% | 1594 fps | 100% |
| Vihtavuori N340² | <<locked>> | 72% | 40,480 psi | 90% | 1677 fps | 100% |
| Vihtavuori N350² | <<locked>> | 76% | 38,363 psi | 85% | 1722 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 38,029 psi | 85% | 1604 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% | 31,183 psi | 69% | 1549 fps | 100% |
| Accurate No. 7² | <<locked>> | 60% | 31,386 psi | 70% | 1716 fps | 95% |
| Accurate No. 9*² | <<locked>> | 64% | 27,644 psi | 61% | 1631 fps | 87.6% |
| Accurate Solo 1000² | <<locked>> | 60% | 30,327 psi | 67% | 1417 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 27,963 psi | 62% | 1437 fps | 100% |
| Accurate TCM*² | <<locked>> | 60% | 24,308 psi | 54% | 1545 fps | 86.6% |
| ADI AP 100² | 10.6 gr | 60% | 19,638 psi | 44% | 1381 fps | 95.8% |
| ADI APS 350² | <<locked>> | 60% | 31,140 psi | 69% | 1322 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 29,747 psi | 66% | 1332 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 30,081 psi | 67% | 1375 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 33,301 psi | 74% | 1476 fps | 100% |
| Alliant 2400*² | <<locked>> | 76% | 31,357 psi | 70% | 1729 fps | 86.9% |
| Alliant BE-86² | <<locked>> | 60% | 28,863 psi | 64% | 1434 fps | 100% |
| Alliant BLUE DOT*² | <<locked>> | 64% | 21,451 psi | 48% | 1467 fps | 87.4% |
| Alliant BULLSEYE² | <<locked>> | 60% | 34,940 psi | 78% | 1634 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 30,661 psi | 68% | 1434 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 21,770 psi | 48% | 1378 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 28,543 psi | 63% | 1640 fps | 99% |
| Alliant RED DOT² | <<locked>> | 60% | 29,776 psi | 66% | 1388 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 28,863 psi | 64% | 1529 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 30,226 psi | 67% | 1417 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 9 gr | 60% | 20,668 psi | 46% | 1253 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 33,620 psi | 75% | 1483 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 31,256 psi | 70% | 1499 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 31,792 psi | 71% | 1342 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 88% | 31,778 psi | 71% | 1824 fps | 87.9% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 11,269 psi | 25% | 945 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 33,199 psi | 74% | 1532 fps | 100% |
| Lovex D037.1² | <<locked>> | 60% | 31,386 psi | 70% | 1716 fps | 95% |
| Lovex D037.2*² | <<locked>> | 60% | 24,613 psi | 55% | 1558 fps | 85.4% |
| Lovex S020² | <<locked>> | 60% | 33,547 psi | 75% | 1562 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 26,339 psi | 59% | 1401 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 29,965 psi | 67% | 1453 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 29,414 psi | 65% | 1427 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 30,864 psi | 69% | 1430 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 33,576 psi | 75% | 1421 fps | 100% |
| Ramshot Enforcer*² | <<locked>> | 72% | 26,905 psi | 60% | 1644 fps | 85.3% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 10,878 psi | 24% | 958 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 27,601 psi | 61% | 1499 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 60% | 26,455 psi | 59% | 1594 fps | 94.5% |
| Rottweil P 806² | <<locked>> | 60% | 25,005 psi | 56% | 1562 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 60% | 24,613 psi | 55% | 1558 fps | 85.4% |
| Shooters World Major Pistol² | <<locked>> | 60% | 31,386 psi | 70% | 1716 fps | 95% |
| SNPE Vectan A0² | <<locked>> | 60% | 26,440 psi | 59% | 1447 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 31,488 psi | 70% | 1480 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 30,850 psi | 69% | 1493 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 33,069 psi | 74% | 1385 fps | 100% |
| SNPE Vectan BA6 1/2* | <<locked>> | 96% | 25,222 psi | 56% | 1594 fps | 86.5% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 23,424 psi | 52% | 1444 fps | 99.9% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 30,966 psi | 69% | 1493 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 33,257 psi | 74% | 1726 fps | 100% |
| Somchem MP200² | <<locked>> | 60% | 32,518 psi | 72% | 1588 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 29,559 psi | 66% | 1512 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 27,470 psi | 61% | 1545 fps | 100% |
| Vihtavuori 3N38*² | <<locked>> | 60% | 19,551 psi | 43% | 1404 fps | 90.5% |
| Vihtavuori N105*² | <<locked>> | 60% | 16,882 psi | 38% | 1378 fps | 92.1% |
| Vihtavuori N110* | <<locked>> | 92% | 27,557 psi | 61% | 1677 fps | 85.1% |
| Vihtavuori N320² | <<locked>> | 60% | 33,489 psi | 74% | 1473 fps | 100% |
| Vihtavuori N32C Tin Star² | 7 gr | 60% | 17,999 psi | 40% | 1112 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 33,591 psi | 75% | 1535 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 29,356 psi | 65% | 1509 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 24,004 psi | 53% | 1470 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 27,644 psi | 61% | 1444 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 10 powders for .357 Maximum loaded with the .356 | 125gr | SNS Coated Bullets RN. Ramshot Enforcer delivers the highest muzzle velocity at 1,893 fps; across all powders the maximum-charge window runs from 1,230 fps to 1,893 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 10 of the 10 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 48–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N32C Tin Star 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. ADI AP 100, Baschieri & Pellagri 102 Pistol, Vihtavuori N32C Tin Star rank at the top here: for .357 Maximum with the .356 | 125gr | SNS Coated Bullets RN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Ramshot Enforcer 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.