Load Specifications
Load data in caliber .357 SIG with .355 | 65gr | Lehigh Defense Xtreme Defense bullet and 56 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AP 70N, Rottweil P 801 and Lovex S011.
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: 4.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2*ᴾ | <<locked>> | 100% | 38,101 psi | 86% | 1857 fps | 93.3% |
| Accurate Solo 1000ᴾ | <<locked>> | 100% | 34,243 psi | 77% | 1768 fps | 100% |
| Accurate Solo 1250ᴾ | <<locked>> | 100% | 27,978 psi | 63% | 1713 fps | 98% |
| ADI AP 70N | <<locked>> | 96% | 36,376 psi | 82% | 1913 fps | 99.9% |
| ADI APS 350ᴾ | <<locked>> | 100% | 39,856 psi | 90% | 1696 fps | 100% |
| ADI APS 450ᴾ | <<locked>> | 100% | 37,579 psi | 85% | 1713 fps | 100% |
| ADI AS 30ᴾ | <<locked>> | 100% | 32,851 psi | 74% | 1726 fps | 100% |
| ADI AS 50Nᴾ | <<locked>> | 100% | 35,085 psi | 79% | 1821 fps | 100% |
| Alliant BE-86ᴾ | <<locked>> | 100% | 28,645 psi | 65% | 1726 fps | 99.5% |
| Alliant BULLSEYEᴾ | <<locked>> | 100% | 38,145 psi | 86% | 1965 fps | 97.5% |
| Alliant Green Dotᴾ | <<locked>> | 100% | 31,401 psi | 71% | 1762 fps | 100% |
| Alliant RED DOTᴾ | <<locked>> | 100% | 29,631 psi | 67% | 1703 fps | 100% |
| Alliant Sport Pistol | <<locked>> | 92% | 36,985 psi | 84% | 1942 fps | 96.4% |
| Alliant UNIQUE*ᴾ | <<locked>> | 100% | 25,382 psi | 57% | 1713 fps | 91.1% |
| Baschieri & Pellagri 100ᴾ | <<locked>> | 100% | 32,648 psi | 74% | 1749 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 17,260 psi | 39% | 1447 fps | 97.9% |
| Baschieri & Pellagri 103 Pistolᴾ | <<locked>> | 100% | 37,188 psi | 84% | 1847 fps | 100% |
| Hodgdon CFE Pistol | <<locked>> | 84% | 39,407 psi | 89% | 1942 fps | 99.6% |
| Hodgdon Claysᴾ | <<locked>> | 100% | 30,124 psi | 68% | 1598 fps | 100% |
| Hodgdon HP38 | <<locked>> | 80% | 38,754 psi | 88% | 1893 fps | 100% |
| Hodgdon Longshot* | <<locked>> | 88% | 37,014 psi | 84% | 1916 fps | 88.6% |
| Hodgdon TiteGroup² | <<locked>> | 72% | 35,940 psi | 81% | 1791 fps | 100% |
| Hodgdon Universalᴾ | <<locked>> | 100% | 31,343 psi | 71% | 1821 fps | 99.3% |
| Lovex D032² | <<locked>> | 72% | 39,291 psi | 89% | 1864 fps | 99.4% |
| Lovex S011 | <<locked>> | 92% | 39,610 psi | 90% | 1873 fps | 100% |
| Lovex S020ᴾ | <<locked>> | 100% | 34,650 psi | 78% | 1860 fps | 97.3% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 25,092 psi | 57% | 1644 fps | 97% |
| Maxam CSB 2ᴾ | <<locked>> | 100% | 23,931 psi | 54% | 1690 fps | 99.7% |
| Maxam CSB 3ᴾ | <<locked>> | 100% | 29,631 psi | 67% | 1736 fps | 100% |
| Maxam CSB 4ᴾ | <<locked>> | 100% | 33,011 psi | 75% | 1778 fps | 100% |
| Maxam CSB 5ᴾ | <<locked>> | 100% | 37,536 psi | 85% | 1788 fps | 100% |
| Ramshot Silhouette* | <<locked>> | 92% | 36,289 psi | 82% | 1909 fps | 93.9% |
| Ramshot True Blue* | <<locked>> | 88% | 39,175 psi | 89% | 1942 fps | 89.6% |
| Ramshot Zip | <<locked>> | 80% | 37,086 psi | 84% | 1870 fps | 100% |
| ReloadSwiss RS 12ᴾ | <<locked>> | 100% | 34,766 psi | 79% | 1886 fps | 100% |
| ReloadSwiss RS 20*ᴾ | <<locked>> | 100% | 24,221 psi | 55% | 1696 fps | 92.5% |
| Rottweil P 801 | <<locked>> | 96% | 38,319 psi | 87% | 1886 fps | 100% |
| Shooters World Clean Shot² | <<locked>> | 72% | 39,291 psi | 89% | 1864 fps | 99.4% |
| Shooters World Ultimate Pistol² | <<locked>> | 72% | 38,290 psi | 87% | 1955 fps | 97.9% |
| SNPE Vectan A0*ᴾ | <<locked>> | 100% | 26,252 psi | 59% | 1657 fps | 91.3% |
| SNPE Vectan A1ᴾ | <<locked>> | 100% | 35,781 psi | 81% | 1827 fps | 100% |
| SNPE Vectan BA 9ᴾ | <<locked>> | 100% | 34,519 psi | 78% | 1814 fps | 98.4% |
| SNPE Vectan BA10 | <<locked>> | 96% | 39,929 psi | 90% | 1745 fps | 100% |
| SNPE Vectan BA9 1/2ᴾ | <<locked>> | 100% | 31,386 psi | 71% | 1788 fps | 98.8% |
| Somchem MP200*ᴾ | <<locked>> | 100% | 33,286 psi | 75% | 1854 fps | 93.6% |
| Somchem MS200*ᴾ | <<locked>> | 100% | 29,617 psi | 67% | 1762 fps | 94.6% |
| Somchem S121² | <<locked>> | 68% | 36,114 psi | 82% | 1919 fps | 99.1% |
| Vihtavuori N310 | <<locked>> | 84% | 38,537 psi | 87% | 1759 fps | 100% |
| Vihtavuori N320ᴾ | <<locked>> | 100% | 34,679 psi | 78% | 1824 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 12,821 psi | 29% | 1276 fps | 99.9% |
| Vihtavuori N330ᴾ | <<locked>> | 100% | 32,126 psi | 73% | 1844 fps | 99.7% |
| Vihtavuori N340*ᴾ | <<locked>> | 100% | 28,689 psi | 65% | 1742 fps | 93.1% |
| Winchester 231 | <<locked>> | 88% | 36,071 psi | 82% | 1854 fps | 99.9% |
| Winchester 244² | <<locked>> | 76% | 38,058 psi | 86% | 1880 fps | 100% |
| Winchester 572* | <<locked>> | 80% | 38,174 psi | 86% | 1959 fps | 88.4% |
| Winchester AutoComp ᴾ | <<locked>> | 100% | 26,498 psi | 60% | 1693 fps | 96.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2* | <<locked>> | 84% | 23,830 psi | 54% | 1575 fps | 85.9% |
| Accurate Solo 1000*² | <<locked>> | 60% | 12,792 psi | 29% | 1227 fps | 94.1% |
| Accurate Solo 1250*² | <<locked>> | 72% | 13,097 psi | 30% | 1286 fps | 86.3% |
| ADI AP 70N*² | 5.3 gr | 60% | 13,039 psi | 29% | 1306 fps | 87.4% |
| ADI APS 350² | <<locked>> | 60% | 15,664 psi | 35% | 1243 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 15,040 psi | 34% | 1257 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 11,980 psi | 27% | 1204 fps | 97.7% |
| ADI AS 50N*² | <<locked>> | 60% | 12,430 psi | 28% | 1240 fps | 92.8% |
| Alliant BE-86*² | <<locked>> | 64% | 10,356 psi | 23% | 1181 fps | 85.2% |
| Alliant BULLSEYE*² | <<locked>> | 72% | 18,608 psi | 42% | 1493 fps | 86.3% |
| Alliant Green Dot*² | <<locked>> | 60% | 11,240 psi | 25% | 1191 fps | 91.1% |
| Alliant RED DOT² | <<locked>> | 60% | 11,211 psi | 25% | 1191 fps | 96.2% |
| Alliant Sport Pistol*² | <<locked>> | 68% | 18,942 psi | 43% | 1499 fps | 85.5% |
| Alliant UNIQUE* | <<locked>> | 88% | 19,160 psi | 43% | 1535 fps | 85.9% |
| Baschieri & Pellagri 100*² | <<locked>> | 60% | 10,617 psi | 24% | 1155 fps | 88.1% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 72% | 8,180 psi | 18% | 1079 fps | 85.3% |
| Baschieri & Pellagri 103 Pistol*² | <<locked>> | 60% | 10,399 psi | 24% | 1184 fps | 88.8% |
| Hodgdon CFE Pistol*² | <<locked>> | 60% | 16,984 psi | 38% | 1437 fps | 89.6% |
| Hodgdon Clays² | <<locked>> | 60% | 11,661 psi | 26% | 1142 fps | 99.9% |
| Hodgdon HP38² | <<locked>> | 60% | 20,117 psi | 45% | 1506 fps | 96.1% |
| Hodgdon Longshot* | <<locked>> | 84% | 32,329 psi | 73% | 1827 fps | 86.2% |
| Hodgdon TiteGroup² | <<locked>> | 60% | 24,395 psi | 55% | 1581 fps | 100% |
| Hodgdon Universal*² | <<locked>> | 64% | 12,053 psi | 27% | 1263 fps | 85.8% |
| Lovex D032² | <<locked>> | 60% | 25,237 psi | 57% | 1601 fps | 95.4% |
| Lovex S011*² | 5 gr | 60% | 15,592 psi | 35% | 1339 fps | 91.8% |
| Lovex S020*² | <<locked>> | 76% | 16,679 psi | 38% | 1430 fps | 86.1% |
| Maxam CSB 1*² | <<locked>> | 72% | 12,459 psi | 28% | 1253 fps | 85.6% |
| Maxam CSB 2*² | <<locked>> | 68% | 9,413 psi | 21% | 1194 fps | 86.3% |
| Maxam CSB 3*² | <<locked>> | 60% | 10,486 psi | 24% | 1165 fps | 87.6% |
| Maxam CSB 4*² | <<locked>> | 60% | 11,589 psi | 26% | 1211 fps | 93% |
| Maxam CSB 5² | <<locked>> | 60% | 13,184 psi | 30% | 1263 fps | 99.8% |
| Ramshot Silhouette*² | <<locked>> | 76% | 22,553 psi | 51% | 1604 fps | 85.8% |
| Ramshot True Blue* | <<locked>> | 84% | 34,258 psi | 77% | 1857 fps | 87.4% |
| Ramshot Zip*² | <<locked>> | 60% | 19,218 psi | 43% | 1483 fps | 94.7% |
| ReloadSwiss RS 12*² | <<locked>> | 60% | 10,225 psi | 23% | 1234 fps | 91.5% |
| ReloadSwiss RS 20* | <<locked>> | 88% | 17,724 psi | 40% | 1496 fps | 86.3% |
| Rottweil P 801² | 5.2 gr | 60% | 13,053 psi | 30% | 1322 fps | 97.9% |
| Shooters World Clean Shot² | <<locked>> | 60% | 25,237 psi | 57% | 1601 fps | 95.4% |
| Shooters World Ultimate Pistol*² | <<locked>> | 60% | 24,613 psi | 56% | 1670 fps | 92.3% |
| SNPE Vectan A0* | <<locked>> | 88% | 20,030 psi | 45% | 1493 fps | 86.4% |
| SNPE Vectan A1*² | <<locked>> | 60% | 11,835 psi | 27% | 1204 fps | 86.7% |
| SNPE Vectan BA 9*² | <<locked>> | 68% | 14,605 psi | 33% | 1309 fps | 85.8% |
| SNPE Vectan BA10² | <<locked>> | 60% | 16,418 psi | 37% | 1299 fps | 100% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 68% | 13,300 psi | 30% | 1289 fps | 86.3% |
| Somchem MP200* | <<locked>> | 84% | 21,567 psi | 49% | 1578 fps | 86.3% |
| Somchem MS200* | <<locked>> | 80% | 17,506 psi | 40% | 1440 fps | 85.6% |
| Somchem S121² | <<locked>> | 60% | 26,005 psi | 59% | 1716 fps | 96% |
| Vihtavuori N310² | <<locked>> | 60% | 18,913 psi | 43% | 1414 fps | 100% |
| Vihtavuori N320*² | <<locked>> | 60% | 10,544 psi | 24% | 1201 fps | 91.5% |
| Vihtavuori N32C Tin Star*² | <<locked>> | 64% | 5,134 psi | 12% | 886 fps | 86.7% |
| Vihtavuori N330*² | <<locked>> | 68% | 12,647 psi | 29% | 1309 fps | 87.1% |
| Vihtavuori N340* | <<locked>> | 84% | 18,768 psi | 42% | 1486 fps | 85.8% |
| Winchester 231*² | <<locked>> | 60% | 15,505 psi | 35% | 1365 fps | 91.3% |
| Winchester 244² | <<locked>> | 60% | 21,712 psi | 49% | 1552 fps | 97.6% |
| Winchester 572*² | <<locked>> | 76% | 33,330 psi | 75% | 1867 fps | 86% |
| Winchester AutoComp *² | <<locked>> | 76% | 13,909 psi | 31% | 1325 fps | 85.9% |
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 56 powders for .357 SIG loaded with the .355 | 65gr | Lehigh Defense Xtreme Defense. Alliant BULLSEYE delivers the highest muzzle velocity at 1,965 fps; across all powders the maximum-charge window runs from 1,276 fps to 1,965 fps. Accurate No. 2 gives the best case fill at 100 %, and 50 of the 56 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (305 MPa), the top charges use 29–90 %, leaving at least 10 % headroom. Accurate No. 2, Accurate Solo 1000, Accurate Solo 1250 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 70N, Rottweil P 801, Lovex S011 rank at the top here: for .357 SIG with the .355 | 65gr | Lehigh Defense Xtreme Defense they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 2, Alliant UNIQUE, Hodgdon Longshot burn incompletely and react more sensitively to barrel length and temperature. Baschieri & Pellagri 102 Pistol, 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.