Load Specifications
Load data in caliber 9 mm Para with .357 | 148gr | X-TREME WC bullet and 59 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant UNIQUE, ReloadSwiss RS 20 and Winchester AutoComp .
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"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2 | <<locked>> | 80% | 30,255 psi | 89% | 978 fps | 98.2% |
| Accurate No. 5*² | <<locked>> | 64% | 28,224 psi | 83% | 1004 fps | 89.9% |
| Accurate Solo 1000 | <<locked>> | 80% | 30,589 psi | 90% | 928 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 84% | 28,514 psi | 84% | 955 fps | 100% |
| ADI AP 70N² | <<locked>> | 68% | 28,297 psi | 83% | 961 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 28,863 psi | 85% | 820 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 29,414 psi | 86% | 856 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 28,224 psi | 83% | 879 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 29,791 psi | 87% | 932 fps | 100% |
| Alliant BE-86 | <<locked>> | 84% | 29,240 psi | 86% | 958 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 76% | 30,095 psi | 88% | 1014 fps | 99.9% |
| Alliant Green Dot | <<locked>> | 80% | 29,443 psi | 86% | 932 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 28,311 psi | 83% | 994 fps | 99.4% |
| Alliant POWER PISTOL* | <<locked>> | 88% | 30,139 psi | 88% | 1063 fps | 88% |
| Alliant RED DOT | <<locked>> | 80% | 28,500 psi | 84% | 899 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 72% | 30,443 psi | 89% | 1017 fps | 99.7% |
| Alliant UNIQUE | <<locked>> | 88% | 30,385 psi | 89% | 1024 fps | 99.7% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 29,414 psi | 86% | 922 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 28,616 psi | 84% | 935 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 29,080 psi | 85% | 945 fps | 100% |
| Hodgdon CFE Pistol | <<locked>> | 80% | 28,543 psi | 84% | 961 fps | 100% |
| Hodgdon Clays | <<locked>> | 84% | 29,530 psi | 87% | 856 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 72% | 30,052 psi | 88% | 1024 fps | 93.2% |
| Hodgdon Longshot² | <<locked>> | 68% | 29,718 psi | 87% | 1017 fps | 95% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 12,865 psi | 38% | 669 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 28,297 psi | 83% | 961 fps | 100% |
| Lovex D036*² | <<locked>> | 64% | 28,181 psi | 83% | 1007 fps | 89.9% |
| Lovex S011² | <<locked>> | 68% | 29,486 psi | 87% | 938 fps | 100% |
| Lovex S020 | <<locked>> | 80% | 30,240 psi | 89% | 994 fps | 100% |
| Maxam CSB 1 | <<locked>> | 88% | 29,617 psi | 87% | 961 fps | 100% |
| Maxam CSB 2 | <<locked>> | 84% | 28,340 psi | 83% | 965 fps | 100% |
| Maxam CSB 3 | <<locked>> | 84% | 29,675 psi | 87% | 945 fps | 100% |
| Maxam CSB 4 | <<locked>> | 80% | 30,255 psi | 89% | 935 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 28,427 psi | 83% | 879 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 72% | 29,950 psi | 88% | 1014 fps | 98.6% |
| Ramshot True Blue² | <<locked>> | 68% | 30,255 psi | 89% | 1020 fps | 95.2% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 27,470 psi | 81% | 942 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 12,285 psi | 36% | 673 fps | 99.5% |
| ReloadSwiss RS 20 | <<locked>> | 92% | 30,560 psi | 90% | 1037 fps | 100% |
| Rottweil P 801² | <<locked>> | 68% | 29,414 psi | 86% | 932 fps | 100% |
| Rottweil P 806*ᴾ | <<locked>> | 100% | 29,689 psi | 87% | 1112 fps | 94.1% |
| Shooters World Auto Pistol*² | <<locked>> | 64% | 28,181 psi | 83% | 1007 fps | 89.9% |
| SNPE Vectan A0 | <<locked>> | 88% | 29,167 psi | 86% | 971 fps | 99.4% |
| SNPE Vectan A1 | <<locked>> | 80% | 30,574 psi | 90% | 961 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 80% | 29,428 psi | 86% | 958 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 27,949 psi | 82% | 840 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 96% | 29,675 psi | 87% | 1004 fps | 94.2% |
| SNPE Vectan BA9 1/2 | <<locked>> | 80% | 28,631 psi | 84% | 958 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 84% | 29,066 psi | 85% | 1070 fps | 89.8% |
| Somchem MP200 | <<locked>> | 80% | 30,168 psi | 89% | 1007 fps | 99.1% |
| Somchem MS200 | <<locked>> | 84% | 30,298 psi | 89% | 994 fps | 99.9% |
| Vihtavuori 3N37 | <<locked>> | 88% | 28,950 psi | 85% | 1017 fps | 95.1% |
| Vihtavuori N320² | <<locked>> | 76% | 28,703 psi | 84% | 928 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 22,858 psi | 67% | 814 fps | 100% |
| Vihtavuori N330 | <<locked>> | 80% | 29,950 psi | 88% | 991 fps | 100% |
| Vihtavuori N340 | <<locked>> | 84% | 29,182 psi | 86% | 984 fps | 99.6% |
| Vihtavuori N350 | <<locked>> | 96% | 30,182 psi | 89% | 1030 fps | 95.9% |
| Winchester 231² | <<locked>> | 68% | 30,298 psi | 89% | 965 fps | 100% |
| Winchester AutoComp | <<locked>> | 84% | 27,543 psi | 81% | 955 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2*² | <<locked>> | 60% | 16,897 psi | 50% | 781 fps | 91% |
| Accurate No. 5*² | <<locked>> | 60% | 25,063 psi | 74% | 958 fps | 87.9% |
| Accurate Solo 1000² | <<locked>> | 60% | 18,971 psi | 56% | 781 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 15,360 psi | 45% | 755 fps | 98% |
| ADI AP 70N² | <<locked>> | 60% | 22,437 psi | 66% | 883 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 21,422 psi | 63% | 738 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 21,234 psi | 62% | 764 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 19,189 psi | 56% | 764 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 20,827 psi | 61% | 820 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 16,128 psi | 47% | 774 fps | 99.7% |
| Alliant BULLSEYE² | <<locked>> | 60% | 19,406 psi | 57% | 853 fps | 96.6% |
| Alliant Green Dot² | <<locked>> | 60% | 18,492 psi | 54% | 784 fps | 100% |
| Alliant Herco*² | <<locked>> | 60% | 12,241 psi | 36% | 699 fps | 88.8% |
| Alliant POWER PISTOL* | <<locked>> | 84% | 26,760 psi | 79% | 1014 fps | 85.9% |
| Alliant RED DOT² | <<locked>> | 60% | 18,188 psi | 53% | 761 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 22,046 psi | 65% | 899 fps | 97.3% |
| Alliant UNIQUE*² | 3.2 gr | 60% | 16,143 psi | 47% | 791 fps | 93.3% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 17,506 psi | 51% | 764 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 11,589 psi | 34% | 673 fps | 99.5% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 18,739 psi | 55% | 814 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 17,405 psi | 51% | 797 fps | 98.7% |
| Hodgdon Clays² | <<locked>> | 60% | 16,882 psi | 50% | 699 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 60% | 20,320 psi | 60% | 876 fps | 86.8% |
| Hodgdon Longshot*² | <<locked>> | 60% | 22,481 psi | 66% | 915 fps | 90.9% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 6,976 psi | 20% | 495 fps | 97.6% |
| Hodgdon Universal² | <<locked>> | 60% | 18,405 psi | 54% | 817 fps | 99.6% |
| Lovex D036*² | <<locked>> | 60% | 25,019 psi | 73% | 958 fps | 87.8% |
| Lovex S011² | <<locked>> | 60% | 22,902 psi | 67% | 856 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 17,608 psi | 52% | 814 fps | 96.8% |
| Maxam CSB 1² | <<locked>> | 60% | 14,924 psi | 44% | 741 fps | 97.8% |
| Maxam CSB 2² | <<locked>> | 60% | 15,403 psi | 45% | 778 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 16,911 psi | 50% | 771 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 18,840 psi | 55% | 791 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 21,480 psi | 63% | 797 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 21,437 psi | 63% | 892 fps | 95.1% |
| Ramshot True Blue*² | <<locked>> | 60% | 23,873 psi | 70% | 932 fps | 91.8% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 20,378 psi | 60% | 850 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 60% | 7,034 psi | 21% | 502 fps | 93.8% |
| ReloadSwiss RS 20*² | 3.3 gr | 60% | 13,837 psi | 41% | 761 fps | 93.4% |
| Rottweil P 801² | <<locked>> | 60% | 23,206 psi | 68% | 860 fps | 100% |
| Rottweil P 806* | <<locked>> | 84% | 18,463 psi | 54% | 938 fps | 86% |
| Shooters World Auto Pistol*² | <<locked>> | 60% | 25,019 psi | 73% | 958 fps | 87.8% |
| SNPE Vectan A0*² | <<locked>> | 60% | 14,663 psi | 43% | 735 fps | 91.5% |
| SNPE Vectan A1² | <<locked>> | 60% | 18,652 psi | 55% | 801 fps | 99.9% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 17,840 psi | 52% | 794 fps | 98% |
| SNPE Vectan BA10² | <<locked>> | 60% | 22,481 psi | 66% | 778 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 76% | 18,579 psi | 55% | 833 fps | 86.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 17,854 psi | 52% | 801 fps | 99% |
| SNPE Vectan SP 2*² | <<locked>> | 76% | 22,829 psi | 67% | 974 fps | 85.5% |
| Somchem MP200*² | <<locked>> | 60% | 17,840 psi | 52% | 817 fps | 93.4% |
| Somchem MS200*² | <<locked>> | 60% | 16,679 psi | 49% | 784 fps | 94.9% |
| Vihtavuori 3N37*² | <<locked>> | 68% | 16,766 psi | 49% | 820 fps | 86.3% |
| Vihtavuori N320² | <<locked>> | 60% | 18,507 psi | 54% | 801 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 10,283 psi | 30% | 604 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 17,056 psi | 50% | 814 fps | 99.7% |
| Vihtavuori N340*² | <<locked>> | 60% | 15,679 psi | 46% | 774 fps | 93.3% |
| Vihtavuori N350*² | <<locked>> | 72% | 16,462 psi | 48% | 814 fps | 86.3% |
| Winchester 231² | <<locked>> | 60% | 23,975 psi | 70% | 889 fps | 100% |
| Winchester AutoComp ² | 3.4 gr | 60% | 15,113 psi | 44% | 755 fps | 96.9% |
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 21 powders for 9 mm Para loaded with the .357 | 148gr | X-TREME WC. Rottweil P 806 delivers the highest muzzle velocity at 1,112 fps; across all powders the maximum-charge window runs from 669 fps to 1,112 fps. Alliant Herco 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 (235 MPa), the top charges use 36–90 %, leaving at least 10 % headroom. Alliant Herco, Baschieri & Pellagri 102 Pistol, Hodgdon TrailBoss 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. Alliant UNIQUE, ReloadSwiss RS 20, Winchester AutoComp rank at the top here: for 9 mm Para with the .357 | 148gr | X-TREME WC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Rottweil P 806, SNPE Vectan BA7 1/2 burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1250, Alliant BE-86, Alliant Herco 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.