Load Specifications
Load data in caliber .357 Mag. with .355 | 95gr | Sierra Tournament Master 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, SNPE Vectan BA7 1/2 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.
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Max Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 76% | 36,811 psi | 85% | 1745 fps | 100% |
| Accurate No. 5² | <<locked>> | 64% | 39,015 psi | 90% | 1877 fps | 98.4% |
| Accurate Solo 1000 | <<locked>> | 80% | 38,159 psi | 88% | 1650 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 84% | 37,449 psi | 86% | 1713 fps | 100% |
| ADI AP 100ᴾ | <<locked>> | 100% | 37,246 psi | 86% | 1841 fps | 96.7% |
| ADI AP 70N² | <<locked>> | 68% | 36,013 psi | 83% | 1709 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 36,941 psi | 85% | 1503 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 38,754 psi | 89% | 1565 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 37,362 psi | 86% | 1604 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 37,260 psi | 86% | 1660 fps | 100% |
| Alliant BE-86 | <<locked>> | 80% | 36,013 psi | 83% | 1670 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 72% | 35,520 psi | 82% | 1768 fps | 100% |
| Alliant Green Dot | <<locked>> | 80% | 37,449 psi | 86% | 1667 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 38,348 psi | 88% | 1801 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 84% | 38,479 psi | 88% | 1919 fps | 96.4% |
| Alliant RED DOT | <<locked>> | 84% | 38,856 psi | 89% | 1654 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 37,043 psi | 85% | 1795 fps | 100% |
| Alliant UNIQUE | <<locked>> | 84% | 37,304 psi | 86% | 1801 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 38,276 psi | 88% | 1657 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 38,595 psi | 89% | 1667 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 39,088 psi | 90% | 1677 fps | 100% |
| Hodgdon CFE Pistol | <<locked>> | 80% | 38,072 psi | 88% | 1729 fps | 100% |
| Hodgdon Clays² | <<locked>> | 76% | 37,565 psi | 86% | 1526 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 68% | 36,927 psi | 85% | 1814 fps | 99% |
| Hodgdon Longshot² | <<locked>> | 64% | 35,650 psi | 82% | 1791 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 16,056 psi | 37% | 1207 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 36,666 psi | 84% | 1719 fps | 100% |
| Lovex D036² | <<locked>> | 64% | 38,957 psi | 90% | 1873 fps | 98.3% |
| Lovex S011² | <<locked>> | 68% | 37,072 psi | 85% | 1673 fps | 100% |
| Lovex S020² | <<locked>> | 76% | 37,884 psi | 87% | 1755 fps | 100% |
| Maxam CSB 1 | <<locked>> | 88% | 37,956 psi | 87% | 1713 fps | 100% |
| Maxam CSB 2 | <<locked>> | 84% | 38,000 psi | 87% | 1716 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 35,810 psi | 82% | 1654 fps | 100% |
| Maxam CSB 4 | <<locked>> | 80% | 38,101 psi | 88% | 1663 fps | 100% |
| Maxam CSB 5² | <<locked>> | 76% | 38,421 psi | 88% | 1604 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 68% | 36,535 psi | 84% | 1781 fps | 100% |
| Ramshot True Blue² | <<locked>> | 64% | 37,362 psi | 86% | 1814 fps | 99.8% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 37,072 psi | 85% | 1683 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 14,576 psi | 34% | 1204 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 84% | 36,477 psi | 84% | 1778 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 84% | 36,143 psi | 83% | 1857 fps | 90.2% |
| Rottweil P 801² | <<locked>> | 68% | 37,637 psi | 87% | 1650 fps | 100% |
| Rottweil P 806 | <<locked>> | 88% | 35,317 psi | 81% | 1870 fps | 99.2% |
| Shooters World Auto Pistol² | <<locked>> | 64% | 38,957 psi | 90% | 1873 fps | 98.3% |
| SNPE Vectan A0 | <<locked>> | 88% | 38,537 psi | 89% | 1762 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 76% | 36,463 psi | 84% | 1673 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 80% | 38,783 psi | 89% | 1729 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 36,506 psi | 84% | 1535 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 92% | 38,116 psi | 88% | 1811 fps | 99.6% |
| SNPE Vectan BA9 1/2 | <<locked>> | 80% | 38,145 psi | 88% | 1729 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 34,882 psi | 80% | 1864 fps | 96.8% |
| Somchem MP200² | <<locked>> | 76% | 36,361 psi | 84% | 1772 fps | 100% |
| Somchem MS200 | <<locked>> | 80% | 36,042 psi | 83% | 1742 fps | 100% |
| Somchem S221*² | <<locked>> | 72% | 37,623 psi | 86% | 1860 fps | 94.1% |
| Vihtavuori 3N37 | <<locked>> | 84% | 37,333 psi | 86% | 1831 fps | 99.9% |
| Vihtavuori 3N38*ᴾ | <<locked>> | 100% | 38,334 psi | 88% | 1883 fps | 92.2% |
| Vihtavuori N105*ᴾ | <<locked>> | 100% | 32,677 psi | 75% | 1850 fps | 93.6% |
| Vihtavuori N310² | <<locked>> | 64% | 39,247 psi | 90% | 1575 fps | 100% |
| Vihtavuori N320² | <<locked>> | 76% | 38,058 psi | 87% | 1667 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 29,573 psi | 68% | 1450 fps | 100% |
| Vihtavuori N330² | <<locked>> | 76% | 37,608 psi | 86% | 1732 fps | 100% |
| Vihtavuori N340 | <<locked>> | 80% | 35,911 psi | 83% | 1742 fps | 100% |
| Vihtavuori N350 | <<locked>> | 88% | 35,853 psi | 82% | 1801 fps | 99.8% |
| Winchester 231² | <<locked>> | 68% | 39,276 psi | 90% | 1722 fps | 100% |
| Winchester AutoComp | <<locked>> | 84% | 37,304 psi | 86% | 1726 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. 2² | <<locked>> | 60% | 22,031 psi | 51% | 1460 fps | 98.2% |
| Accurate No. 5² | <<locked>> | 60% | 33,402 psi | 77% | 1778 fps | 96.9% |
| Accurate Solo 1000² | <<locked>> | 60% | 23,540 psi | 54% | 1407 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 19,653 psi | 45% | 1381 fps | 100% |
| ADI AP 100*² | <<locked>> | 76% | 20,349 psi | 47% | 1463 fps | 87% |
| ADI AP 70N² | <<locked>> | 60% | 28,297 psi | 65% | 1578 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 26,020 psi | 60% | 1329 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 24,540 psi | 56% | 1342 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 23,235 psi | 53% | 1368 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 24,729 psi | 57% | 1447 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 20,595 psi | 47% | 1394 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 25,396 psi | 58% | 1572 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 22,713 psi | 52% | 1407 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 14,547 psi | 33% | 1263 fps | 95.3% |
| Alliant POWER PISTOL*² | <<locked>> | 64% | 21,596 psi | 50% | 1535 fps | 86.9% |
| Alliant RED DOT² | <<locked>> | 60% | 22,394 psi | 51% | 1371 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 28,601 psi | 66% | 1644 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 19,885 psi | 46% | 1437 fps | 98.7% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 22,075 psi | 51% | 1388 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 14,112 psi | 32% | 1201 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 23,830 psi | 55% | 1440 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 22,002 psi | 51% | 1444 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 26,397 psi | 61% | 1352 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 28,079 psi | 65% | 1650 fps | 96.5% |
| Hodgdon Longshot² | <<locked>> | 60% | 31,024 psi | 71% | 1706 fps | 98.7% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,281 psi | 17% | 886 fps | 99.4% |
| Hodgdon Universal² | <<locked>> | 60% | 23,772 psi | 55% | 1486 fps | 100% |
| Lovex D036² | <<locked>> | 60% | 33,417 psi | 77% | 1778 fps | 96.8% |
| Lovex S011² | <<locked>> | 60% | 29,312 psi | 67% | 1552 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 23,032 psi | 53% | 1493 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 18,855 psi | 43% | 1355 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 20,204 psi | 46% | 1401 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 21,640 psi | 50% | 1401 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 22,989 psi | 53% | 1407 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 26,223 psi | 60% | 1414 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 27,789 psi | 64% | 1624 fps | 99.8% |
| Ramshot True Blue² | <<locked>> | 60% | 32,039 psi | 74% | 1722 fps | 99% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 26,484 psi | 61% | 1512 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 6,889 psi | 16% | 879 fps | 96.2% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 18,028 psi | 41% | 1404 fps | 99.3% |
| ReloadSwiss RS 24*² | <<locked>> | 76% | 28,108 psi | 65% | 1693 fps | 85.6% |
| Rottweil P 801² | <<locked>> | 60% | 30,226 psi | 69% | 1539 fps | 100% |
| Rottweil P 806*² | 13.1 gr | 64% | 15,302 psi | 35% | 1381 fps | 86.4% |
| Shooters World Auto Pistol² | <<locked>> | 60% | 33,417 psi | 77% | 1778 fps | 96.8% |
| SNPE Vectan A0² | <<locked>> | 60% | 18,869 psi | 43% | 1371 fps | 98.2% |
| SNPE Vectan A1² | <<locked>> | 60% | 23,380 psi | 54% | 1444 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 22,510 psi | 52% | 1444 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 27,615 psi | 63% | 1398 fps | 100% |
| SNPE Vectan BA7 1/2*² | 9 gr | 60% | 15,853 psi | 36% | 1302 fps | 88.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 21,988 psi | 51% | 1440 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 20,189 psi | 46% | 1512 fps | 87.8% |
| Somchem MP200² | <<locked>> | 60% | 22,858 psi | 53% | 1506 fps | 99.1% |
| Somchem MS200² | <<locked>> | 60% | 20,856 psi | 48% | 1437 fps | 99.5% |
| Somchem S221*² | <<locked>> | 60% | 25,063 psi | 58% | 1598 fps | 87.1% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 18,086 psi | 42% | 1404 fps | 92.2% |
| Vihtavuori 3N38* | <<locked>> | 88% | 27,180 psi | 62% | 1660 fps | 86% |
| Vihtavuori N105* | <<locked>> | 88% | 22,829 psi | 52% | 1621 fps | 86.7% |
| Vihtavuori N310² | <<locked>> | 60% | 35,882 psi | 82% | 1529 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 24,134 psi | 55% | 1444 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 12,299 psi | 28% | 1083 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 23,235 psi | 53% | 1486 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 20,320 psi | 47% | 1427 fps | 99.1% |
| Vihtavuori N350*² | 8.8 gr | 60% | 15,621 psi | 36% | 1322 fps | 89.9% |
| Winchester 231² | <<locked>> | 60% | 31,140 psi | 72% | 1601 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 19,232 psi | 44% | 1381 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 21 powders for .357 Mag. loaded with the .355 | 95gr | Sierra Tournament Master. Alliant POWER PISTOL delivers the highest muzzle velocity at 1,919 fps; across all powders the maximum-charge window runs from 1,204 fps to 1,919 fps. ADI AP 100 gives the best case fill at 100 %, and 21 of the 21 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (300 MPa), the top charges use 34–89 %, leaving at least 11 % 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, SNPE Vectan BA7 1/2, Vihtavuori N350 rank at the top here: for .357 Mag. with the .355 | 95gr | Sierra Tournament Master they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Vihtavuori 3N38, Vihtavuori N105 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.