Load Specifications
Load data in caliber .357 Mag. with .355 | 90gr | MEN QD1 bullet and 65 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Rottweil P 806, Vihtavuori 3N37 and Vihtavuori N350.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2 | <<locked>> | 84% | 38,247 psi | 88% | 1745 fps | 100% |
| Accurate No. 5² | <<locked>> | 68% | 35,810 psi | 82% | 1801 fps | 95.4% |
| Accurate Solo 1000 | <<locked>> | 84% | 36,143 psi | 83% | 1614 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 92% | 38,087 psi | 88% | 1716 fps | 100% |
| ADI AP 100*ᴾ | <<locked>> | 100% | 29,443 psi | 68% | 1670 fps | 90.5% |
| ADI AP 70N² | <<locked>> | 76% | 36,593 psi | 84% | 1719 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 36,434 psi | 84% | 1480 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 37,913 psi | 87% | 1542 fps | 100% |
| ADI AS 30 | <<locked>> | 88% | 38,218 psi | 88% | 1608 fps | 100% |
| ADI AS 50N | <<locked>> | 84% | 38,421 psi | 88% | 1670 fps | 100% |
| Alliant BE-86 | <<locked>> | 88% | 36,056 psi | 83% | 1670 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 80% | 37,057 psi | 85% | 1788 fps | 100% |
| Alliant Green Dot | <<locked>> | 88% | 37,811 psi | 87% | 1667 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 31,009 psi | 71% | 1680 fps | 100% |
| Alliant POWER PISTOL* | <<locked>> | 92% | 38,029 psi | 87% | 1893 fps | 93.8% |
| Alliant RED DOT | <<locked>> | 88% | 36,811 psi | 85% | 1617 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 38,479 psi | 88% | 1811 fps | 100% |
| Alliant UNIQUE | <<locked>> | 92% | 37,289 psi | 86% | 1798 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 88% | 38,783 psi | 89% | 1657 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 31,662 psi | 73% | 1575 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 80% | 35,795 psi | 82% | 1634 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 39,088 psi | 90% | 1749 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 36,912 psi | 85% | 1503 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 36,608 psi | 84% | 1673 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 76% | 38,435 psi | 88% | 1821 fps | 97.8% |
| Hodgdon Longshot² | <<locked>> | 72% | 37,927 psi | 87% | 1814 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 12,952 psi | 30% | 1125 fps | 100% |
| Hodgdon Universal | <<locked>> | 84% | 36,593 psi | 84% | 1719 fps | 100% |
| Lovex D036² | <<locked>> | 68% | 35,795 psi | 82% | 1801 fps | 95.3% |
| Lovex S011² | <<locked>> | 76% | 39,146 psi | 90% | 1693 fps | 100% |
| Lovex S020 | <<locked>> | 84% | 38,058 psi | 87% | 1755 fps | 100% |
| Maxam CSB 1 | <<locked>> | 96% | 38,043 psi | 87% | 1709 fps | 100% |
| Maxam CSB 2 | <<locked>> | 92% | 36,956 psi | 85% | 1709 fps | 100% |
| Maxam CSB 3 | <<locked>> | 88% | 36,303 psi | 83% | 1657 fps | 100% |
| Maxam CSB 4 | <<locked>> | 88% | 38,696 psi | 89% | 1667 fps | 100% |
| Maxam CSB 5 | <<locked>> | 80% | 36,376 psi | 84% | 1572 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 76% | 37,956 psi | 87% | 1798 fps | 100% |
| Ramshot True Blue² | <<locked>> | 72% | 39,363 psi | 90% | 1831 fps | 99% |
| Ramshot Zip² | <<locked>> | 64% | 36,071 psi | 83% | 1677 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 37,057 psi | 85% | 1690 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 11,676 psi | 27% | 1112 fps | 99.6% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 39,247 psi | 90% | 1821 fps | 100% |
| Rottweil P 801² | <<locked>> | 76% | 39,001 psi | 90% | 1670 fps | 100% |
| Rottweil P 806ᴾ | <<locked>> | 100% | 36,260 psi | 83% | 1896 fps | 98% |
| Shooters World Auto Pistol² | <<locked>> | 68% | 35,795 psi | 82% | 1801 fps | 95.3% |
| SNPE Vectan A0 | <<locked>> | 96% | 38,218 psi | 88% | 1745 fps | 100% |
| SNPE Vectan A1 | <<locked>> | 84% | 37,231 psi | 86% | 1677 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 84% | 36,042 psi | 83% | 1680 fps | 100% |
| SNPE Vectan BA10 | <<locked>> | 80% | 38,841 psi | 89% | 1552 fps | 100% |
| SNPE Vectan BA7 1/2ᴾ | <<locked>> | 100% | 36,941 psi | 85% | 1775 fps | 98.1% |
| SNPE Vectan BA9 1/2 | <<locked>> | 88% | 38,232 psi | 88% | 1726 fps | 100% |
| SNPE Vectan SP 2 | <<locked>> | 88% | 37,797 psi | 87% | 1909 fps | 95.6% |
| Somchem MP200 | <<locked>> | 84% | 37,043 psi | 85% | 1775 fps | 100% |
| Somchem MS200 | <<locked>> | 88% | 36,216 psi | 83% | 1736 fps | 100% |
| Somchem S221* | <<locked>> | 80% | 38,928 psi | 89% | 1857 fps | 91.5% |
| Vihtavuori 3N37 | <<locked>> | 92% | 36,869 psi | 85% | 1811 fps | 98.8% |
| Vihtavuori N310² | <<locked>> | 68% | 36,303 psi | 83% | 1532 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 38,058 psi | 87% | 1667 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 29,327 psi | 67% | 1447 fps | 100% |
| Vihtavuori N330 | <<locked>> | 84% | 34,824 psi | 80% | 1696 fps | 100% |
| Vihtavuori N340 | <<locked>> | 92% | 38,885 psi | 89% | 1778 fps | 100% |
| Vihtavuori N350 | <<locked>> | 96% | 37,130 psi | 85% | 1808 fps | 99% |
| Winchester 231² | <<locked>> | 72% | 36,970 psi | 85% | 1686 fps | 100% |
| Winchester 572² | <<locked>> | 64% | 36,753 psi | 84% | 1808 fps | 98% |
| Winchester AutoComp | <<locked>> | 92% | 37,304 psi | 86% | 1722 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2*² | <<locked>> | 60% | 18,144 psi | 42% | 1342 fps | 93.6% |
| Accurate No. 5*² | <<locked>> | 60% | 27,166 psi | 62% | 1627 fps | 91.2% |
| Accurate Solo 1000² | <<locked>> | 60% | 20,233 psi | 47% | 1332 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 16,215 psi | 37% | 1286 fps | 99% |
| ADI AP 100* | <<locked>> | 88% | 22,191 psi | 51% | 1499 fps | 85.4% |
| ADI AP 70N² | <<locked>> | 60% | 23,424 psi | 54% | 1483 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 22,611 psi | 52% | 1260 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 21,857 psi | 50% | 1283 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 19,957 psi | 46% | 1296 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 20,740 psi | 48% | 1362 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 16,665 psi | 38% | 1296 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 21,031 psi | 48% | 1457 fps | 98.2% |
| Alliant Green Dot² | <<locked>> | 60% | 19,290 psi | 44% | 1329 fps | 100% |
| Alliant Herco*² | <<locked>> | 60% | 11,908 psi | 27% | 1161 fps | 89.5% |
| Alliant POWER PISTOL*² | <<locked>> | 76% | 24,265 psi | 56% | 1598 fps | 85.9% |
| Alliant RED DOT² | <<locked>> | 60% | 18,855 psi | 43% | 1293 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 24,207 psi | 56% | 1539 fps | 98.9% |
| Alliant UNIQUE*² | <<locked>> | 60% | 15,925 psi | 37% | 1316 fps | 94.3% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 18,521 psi | 43% | 1306 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 11,385 psi | 26% | 1119 fps | 99.7% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 19,464 psi | 45% | 1355 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 29,950 psi | 69% | 1611 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 22,843 psi | 53% | 1280 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 32,474 psi | 75% | 1611 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 60% | 22,640 psi | 52% | 1506 fps | 90.6% |
| Hodgdon Longshot*² | <<locked>> | 60% | 24,729 psi | 57% | 1558 fps | 94% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 6,193 psi | 14% | 830 fps | 96.6% |
| Hodgdon Universal² | <<locked>> | 60% | 19,290 psi | 44% | 1385 fps | 100% |
| Lovex D036*² | <<locked>> | 60% | 27,122 psi | 62% | 1627 fps | 91.2% |
| Lovex S011² | <<locked>> | 60% | 25,019 psi | 57% | 1463 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 18,376 psi | 42% | 1371 fps | 98.1% |
| Maxam CSB 1² | <<locked>> | 60% | 15,127 psi | 35% | 1247 fps | 98.6% |
| Maxam CSB 2² | <<locked>> | 60% | 15,751 psi | 36% | 1302 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 17,883 psi | 41% | 1312 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 19,522 psi | 45% | 1332 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 22,292 psi | 51% | 1342 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 22,655 psi | 52% | 1499 fps | 96.9% |
| Ramshot True Blue*² | <<locked>> | 60% | 25,744 psi | 59% | 1575 fps | 94.6% |
| Ramshot Zip² | <<locked>> | 60% | 32,111 psi | 74% | 1614 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 21,277 psi | 49% | 1421 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 60% | 5,685 psi | 13% | 804 fps | 90.8% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 14,286 psi | 33% | 1283 fps | 95% |
| Rottweil P 801² | <<locked>> | 60% | 24,845 psi | 57% | 1453 fps | 100% |
| Rottweil P 806*² | 12.3 gr | 76% | 16,288 psi | 37% | 1434 fps | 85.1% |
| Shooters World Auto Pistol*² | <<locked>> | 60% | 27,122 psi | 62% | 1627 fps | 91.2% |
| SNPE Vectan A0*² | <<locked>> | 60% | 15,389 psi | 35% | 1253 fps | 93.6% |
| SNPE Vectan A1² | <<locked>> | 60% | 19,493 psi | 45% | 1352 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 18,681 psi | 43% | 1342 fps | 99% |
| SNPE Vectan BA10² | <<locked>> | 60% | 23,960 psi | 55% | 1325 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 68% | 16,433 psi | 38% | 1312 fps | 86.1% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 18,449 psi | 42% | 1348 fps | 99.6% |
| SNPE Vectan SP 2*² | <<locked>> | 72% | 23,177 psi | 53% | 1601 fps | 87.6% |
| Somchem MP200² | <<locked>> | 60% | 18,550 psi | 43% | 1385 fps | 95.2% |
| Somchem MS200² | <<locked>> | 60% | 17,100 psi | 39% | 1322 fps | 96.3% |
| Somchem S221*² | <<locked>> | 72% | 29,646 psi | 68% | 1686 fps | 86.8% |
| Vihtavuori 3N37*² | 8 gr | 64% | 16,230 psi | 37% | 1342 fps | 87.3% |
| Vihtavuori N310² | <<locked>> | 60% | 28,631 psi | 66% | 1421 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 19,551 psi | 45% | 1352 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 11,298 psi | 26% | 1063 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 17,245 psi | 40% | 1352 fps | 99.9% |
| Vihtavuori N340*² | <<locked>> | 60% | 15,969 psi | 37% | 1299 fps | 94.8% |
| Vihtavuori N350*² | 7.5 gr | 64% | 14,576 psi | 34% | 1283 fps | 85.6% |
| Winchester 231² | <<locked>> | 60% | 25,585 psi | 59% | 1499 fps | 100% |
| Winchester 572² | <<locked>> | 60% | 32,227 psi | 74% | 1729 fps | 96.7% |
| Winchester AutoComp ² | <<locked>> | 60% | 15,722 psi | 36% | 1276 fps | 98.1% |
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 65 powders for .357 Mag. loaded with the .355 | 90gr | MEN QD1. SNPE Vectan SP 2 delivers the highest muzzle velocity at 1,909 fps; across all powders the maximum-charge window runs from 1,112 fps to 1,909 fps. ADI AP 100 gives the best case fill at 100 %, and 48 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (300 MPa), the top charges use 27–90 %, leaving at least 10 % headroom. ADI AP 100, Alliant Herco, Baschieri & Pellagri 102 Pistol 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. Rottweil P 806, Vihtavuori 3N37, Vihtavuori N350 rank at the top here: for .357 Mag. with the .355 | 90gr | MEN QD1 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AP 100, Alliant POWER PISTOL, Somchem S221 burn incompletely and react more sensitively to barrel length and temperature. Baschieri & Pellagri 102 Pistol, 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.