Load Specifications
Load data in caliber .357 Maximum with .355 | 90gr | Lehigh Defense Xtreme Defense bullet and 67 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N105, Vihtavuori N350 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 No. 2² | <<locked>> | 72% | 35,940 psi | 80% | 1952 fps | 100% |
| Accurate No. 7*² | <<locked>> | 76% | 39,610 psi | 88% | 2182 fps | 93.5% |
| Accurate No. 9* | <<locked>> | 84% | 39,450 psi | 88% | 2159 fps | 88% |
| Accurate Solo 1000² | <<locked>> | 76% | 37,565 psi | 84% | 1847 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 37,492 psi | 83% | 1923 fps | 100% |
| Accurate TCM* | <<locked>> | 84% | 39,494 psi | 88% | 2156 fps | 89.4% |
| ADI AP 100 | <<locked>> | 96% | 38,116 psi | 85% | 2096 fps | 99.1% |
| ADI AP 70N² | <<locked>> | 68% | 38,348 psi | 85% | 1959 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 38,682 psi | 86% | 1722 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 37,826 psi | 84% | 1749 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 39,740 psi | 88% | 1841 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 40,176 psi | 89% | 1909 fps | 100% |
| Alliant BE-86 | <<locked>> | 80% | 38,986 psi | 87% | 1916 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 96% | 37,362 psi | 83% | 2133 fps | 91.5% |
| Alliant BULLSEYE² | <<locked>> | 72% | 39,421 psi | 88% | 2057 fps | 100% |
| Alliant Green Dot | <<locked>> | 80% | 40,190 psi | 89% | 1916 fps | 100% |
| Alliant Herco | <<locked>> | 96% | 38,566 psi | 86% | 2024 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 80% | 38,551 psi | 86% | 2172 fps | 98.8% |
| Alliant RED DOT | <<locked>> | 80% | 38,000 psi | 85% | 1847 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 40,161 psi | 89% | 2070 fps | 100% |
| Alliant UNIQUE | <<locked>> | 80% | 37,550 psi | 84% | 2028 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 37,289 psi | 83% | 1844 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 96% | 38,363 psi | 85% | 1860 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 37,840 psi | 84% | 1857 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 39,682 psi | 88% | 1772 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 64% | 36,085 psi | 80% | 2034 fps | 100% |
| Hodgdon Longshot² | <<locked>> | 64% | 40,190 psi | 89% | 2096 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 16,447 psi | 37% | 1378 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 39,566 psi | 88% | 1978 fps | 100% |
| Lovex D037.1*² | <<locked>> | 76% | 39,610 psi | 88% | 2182 fps | 93.5% |
| Lovex D037.2* | <<locked>> | 84% | 40,480 psi | 90% | 2175 fps | 88.4% |
| Lovex S011² | <<locked>> | 68% | 40,625 psi | 90% | 1932 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 37,101 psi | 83% | 1959 fps | 100% |
| Maxam CSB 1 | <<locked>> | 84% | 38,043 psi | 85% | 1919 fps | 100% |
| Maxam CSB 2 | <<locked>> | 80% | 37,695 psi | 84% | 1916 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 38,508 psi | 86% | 1900 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 37,376 psi | 83% | 1854 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 37,260 psi | 83% | 1788 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 68% | 40,103 psi | 89% | 2060 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 40,451 psi | 90% | 1939 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 14,881 psi | 33% | 1378 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 80% | 36,651 psi | 82% | 1991 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 80% | 36,376 psi | 81% | 2113 fps | 94.3% |
| Rottweil P 801² | <<locked>> | 64% | 35,969 psi | 80% | 1827 fps | 100% |
| Rottweil P 806 | <<locked>> | 84% | 36,216 psi | 81% | 2113 fps | 100% |
| Shooters World Heavy Pistol* | <<locked>> | 84% | 40,480 psi | 90% | 2175 fps | 88.4% |
| Shooters World Major Pistol*² | <<locked>> | 76% | 39,610 psi | 88% | 2182 fps | 93.5% |
| SNPE Vectan A0 | <<locked>> | 84% | 38,870 psi | 86% | 1982 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 76% | 39,479 psi | 88% | 1923 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 38,609 psi | 86% | 1936 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 38,421 psi | 85% | 1759 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 88% | 38,029 psi | 85% | 2044 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 76% | 36,985 psi | 82% | 1923 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 40,016 psi | 89% | 2198 fps | 99.7% |
| Somchem MP200² | <<locked>> | 76% | 40,030 psi | 89% | 2054 fps | 100% |
| Somchem MS200 | <<locked>> | 80% | 38,856 psi | 86% | 2001 fps | 100% |
| Somchem S221² | <<locked>> | 68% | 36,956 psi | 82% | 2096 fps | 97% |
| Vihtavuori 3N37 | <<locked>> | 80% | 37,420 psi | 83% | 2057 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 96% | 39,305 psi | 87% | 2149 fps | 96.1% |
| Vihtavuori N105ᴾ | <<locked>> | 100% | 39,349 psi | 88% | 2215 fps | 98.9% |
| Vihtavuori N320² | <<locked>> | 72% | 37,202 psi | 83% | 1857 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 31,473 psi | 70% | 1660 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 36,767 psi | 82% | 1923 fps | 100% |
| Vihtavuori N340 | <<locked>> | 80% | 39,842 psi | 89% | 2014 fps | 100% |
| Vihtavuori N350 | <<locked>> | 88% | 40,611 psi | 90% | 2100 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 37,608 psi | 84% | 1906 fps | 100% |
| Winchester AutoComp | <<locked>> | 84% | 40,466 psi | 90% | 1978 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% | 24,033 psi | 53% | 1716 fps | 99.9% |
| Accurate No. 7*² | <<locked>> | 64% | 24,947 psi | 55% | 1857 fps | 85.2% |
| Accurate No. 9* | <<locked>> | 80% | 34,084 psi | 76% | 2051 fps | 85.3% |
| Accurate Solo 1000² | <<locked>> | 60% | 24,860 psi | 55% | 1617 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 21,234 psi | 47% | 1608 fps | 100% |
| Accurate TCM* | <<locked>> | 80% | 34,127 psi | 76% | 2051 fps | 86.7% |
| ADI AP 100*² | 11.4 gr | 64% | 15,476 psi | 34% | 1503 fps | 85.9% |
| ADI AP 70N² | <<locked>> | 60% | 30,516 psi | 68% | 1824 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 26,672 psi | 59% | 1519 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 25,643 psi | 57% | 1539 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 24,279 psi | 54% | 1568 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 26,469 psi | 59% | 1673 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 21,698 psi | 48% | 1601 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 88% | 29,805 psi | 66% | 1965 fps | 87.5% |
| Alliant BULLSEYE² | <<locked>> | 60% | 27,644 psi | 61% | 1831 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 24,178 psi | 54% | 1627 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 15,171 psi | 34% | 1473 fps | 98.2% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 20,479 psi | 46% | 1719 fps | 90% |
| Alliant RED DOT² | <<locked>> | 60% | 23,192 psi | 52% | 1572 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 31,604 psi | 70% | 1916 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 21,045 psi | 47% | 1673 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 23,656 psi | 53% | 1604 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 14,649 psi | 33% | 1381 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 25,889 psi | 58% | 1660 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 21,176 psi | 47% | 1440 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 31,285 psi | 70% | 1939 fps | 99.5% |
| Hodgdon Longshot² | <<locked>> | 60% | 34,418 psi | 77% | 1998 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 6,788 psi | 15% | 1004 fps | 99.9% |
| Hodgdon Universal² | <<locked>> | 60% | 25,077 psi | 56% | 1713 fps | 100% |
| Lovex D037.1*² | <<locked>> | 64% | 24,947 psi | 55% | 1857 fps | 85.2% |
| Lovex D037.2* | <<locked>> | 80% | 35,012 psi | 78% | 2070 fps | 85.8% |
| Lovex S011² | <<locked>> | 60% | 31,459 psi | 70% | 1788 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 24,976 psi | 56% | 1732 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 19,856 psi | 44% | 1562 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 21,509 psi | 48% | 1614 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 23,032 psi | 51% | 1614 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 24,671 psi | 55% | 1624 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 27,209 psi | 61% | 1614 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 30,734 psi | 68% | 1896 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 28,297 psi | 63% | 1739 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 6,135 psi | 14% | 984 fps | 96.8% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 19,740 psi | 44% | 1640 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 68% | 24,424 psi | 54% | 1827 fps | 87.4% |
| Rottweil P 801² | <<locked>> | 60% | 32,039 psi | 71% | 1762 fps | 100% |
| Rottweil P 806*² | <<locked>> | 60% | 14,228 psi | 32% | 1526 fps | 89.2% |
| Shooters World Heavy Pistol* | <<locked>> | 80% | 35,012 psi | 78% | 2070 fps | 85.8% |
| Shooters World Major Pistol*² | <<locked>> | 64% | 24,947 psi | 55% | 1857 fps | 85.2% |
| SNPE Vectan A0² | <<locked>> | 60% | 20,131 psi | 45% | 1598 fps | 99.9% |
| SNPE Vectan A1² | <<locked>> | 60% | 25,135 psi | 56% | 1670 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 24,308 psi | 54% | 1673 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 28,761 psi | 64% | 1598 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 16,853 psi | 37% | 1529 fps | 93.4% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 23,844 psi | 53% | 1673 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 22,437 psi | 50% | 1798 fps | 93.7% |
| Somchem MP200² | <<locked>> | 60% | 24,526 psi | 55% | 1752 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 22,466 psi | 50% | 1677 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 27,340 psi | 61% | 1883 fps | 92.8% |
| Vihtavuori 3N37² | <<locked>> | 60% | 19,754 psi | 44% | 1654 fps | 96.7% |
| Vihtavuori 3N38*² | <<locked>> | 76% | 21,553 psi | 48% | 1736 fps | 86% |
| Vihtavuori N105*² | 15.4 gr | 76% | 17,579 psi | 39% | 1673 fps | 86% |
| Vihtavuori N320² | <<locked>> | 60% | 26,034 psi | 58% | 1663 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 12,401 psi | 28% | 1237 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 25,135 psi | 56% | 1716 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 21,785 psi | 48% | 1663 fps | 100% |
| Vihtavuori N350² | 11.2 gr | 60% | 17,042 psi | 38% | 1565 fps | 95% |
| Winchester 231² | <<locked>> | 60% | 33,649 psi | 75% | 1844 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 20,784 psi | 46% | 1608 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 67 powders for .357 Maximum loaded with the .355 | 90gr | Lehigh Defense Xtreme Defense. Vihtavuori N105 delivers the highest muzzle velocity at 2,215 fps; across all powders the maximum-charge window runs from 1,378 fps to 2,215 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 34 of the 67 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 33–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N105 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, Vihtavuori N350, ADI AP 100 rank at the top here: for .357 Maximum with the .355 | 90gr | Lehigh Defense Xtreme Defense they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 7, Accurate No. 9, Accurate TCM 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.