Load Specifications
Load data in caliber 9 mm Para with .357 | 148gr | LOS 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. 2² | <<locked>> | 76% | 26,977 psi | 79% | 942 fps | 97.3% |
| Accurate No. 5*² | <<locked>> | 64% | 27,920 psi | 82% | 1004 fps | 89.9% |
| Accurate Solo 1000 | <<locked>> | 80% | 30,240 psi | 89% | 925 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 84% | 28,239 psi | 83% | 951 fps | 100% |
| ADI AP 100*ᴾ | <<locked>> | 100% | 26,818 psi | 79% | 984 fps | 86.8% |
| ADI AP 70N² | <<locked>> | 72% | 30,705 psi | 90% | 988 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 28,601 psi | 84% | 820 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 30,647 psi | 90% | 869 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 27,934 psi | 82% | 876 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 29,515 psi | 87% | 928 fps | 100% |
| Alliant BE-86 | <<locked>> | 84% | 30,197 psi | 89% | 971 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 76% | 29,718 psi | 87% | 1010 fps | 99.8% |
| Alliant Green Dot | <<locked>> | 80% | 30,458 psi | 89% | 942 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 29,080 psi | 85% | 1007 fps | 99.6% |
| Alliant POWER PISTOL* | <<locked>> | 88% | 29,718 psi | 87% | 1060 fps | 87.9% |
| Alliant RED DOT | <<locked>> | 80% | 29,704 psi | 87% | 915 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 27,586 psi | 81% | 984 fps | 99.2% |
| Alliant UNIQUE | <<locked>> | 84% | 28,906 psi | 85% | 1007 fps | 99.5% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 29,051 psi | 85% | 919 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 28,326 psi | 83% | 935 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 28,805 psi | 85% | 945 fps | 100% |
| Hodgdon Clays | <<locked>> | 84% | 29,211 psi | 86% | 856 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 72% | 30,821 psi | 90% | 1033 fps | 93.6% |
| Hodgdon Longshot*² | <<locked>> | 68% | 29,283 psi | 86% | 1014 fps | 94.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 13,489 psi | 40% | 682 fps | 100% |
| Hodgdon Universal | <<locked>> | 80% | 30,705 psi | 90% | 988 fps | 100% |
| Lovex D036*² | <<locked>> | 64% | 27,862 psi | 82% | 1004 fps | 89.8% |
| Lovex S011² | <<locked>> | 68% | 29,240 psi | 86% | 938 fps | 100% |
| Lovex S020² | <<locked>> | 76% | 28,543 psi | 84% | 978 fps | 100% |
| Maxam CSB 1 | <<locked>> | 88% | 29,269 psi | 86% | 961 fps | 100% |
| Maxam CSB 2 | <<locked>> | 88% | 30,734 psi | 90% | 991 fps | 100% |
| Maxam CSB 3 | <<locked>> | 84% | 30,792 psi | 90% | 961 fps | 100% |
| Maxam CSB 4 | <<locked>> | 80% | 29,878 psi | 88% | 935 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 28,152 psi | 83% | 876 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 72% | 30,792 psi | 90% | 1027 fps | 98.9% |
| Ramshot True Blue*² | <<locked>> | 64% | 27,630 psi | 81% | 988 fps | 94.1% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 28,572 psi | 84% | 955 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 12,212 psi | 36% | 673 fps | 99.5% |
| ReloadSwiss RS 20 | <<locked>> | 88% | 28,877 psi | 85% | 1020 fps | 100% |
| Rottweil P 801² | <<locked>> | 68% | 29,269 psi | 86% | 932 fps | 100% |
| Rottweil P 806*ᴾ | <<locked>> | 100% | 29,269 psi | 86% | 1109 fps | 93.9% |
| Shooters World Auto Pistol*² | <<locked>> | 64% | 27,862 psi | 82% | 1004 fps | 89.8% |
| SNPE Vectan A0 | <<locked>> | 88% | 28,776 psi | 84% | 968 fps | 99.3% |
| SNPE Vectan A1² | <<locked>> | 76% | 27,789 psi | 82% | 932 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 80% | 30,385 psi | 89% | 971 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 30,632 psi | 90% | 869 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 96% | 30,501 psi | 89% | 1017 fps | 94.6% |
| SNPE Vectan BA9 1/2 | <<locked>> | 80% | 29,588 psi | 87% | 971 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 84% | 29,834 psi | 88% | 1083 fps | 90.4% |
| Somchem MP200 | <<locked>> | 80% | 29,747 psi | 87% | 1007 fps | 99.1% |
| Somchem MS200 | <<locked>> | 84% | 29,907 psi | 88% | 994 fps | 99.9% |
| Vihtavuori 3N37 | <<locked>> | 88% | 29,733 psi | 87% | 1030 fps | 95.5% |
| Vihtavuori N320² | <<locked>> | 76% | 28,413 psi | 83% | 928 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 23,743 psi | 70% | 823 fps | 100% |
| Vihtavuori N330 | <<locked>> | 80% | 29,559 psi | 87% | 988 fps | 100% |
| Vihtavuori N340 | <<locked>> | 84% | 30,124 psi | 88% | 997 fps | 99.7% |
| Vihtavuori N350* | <<locked>> | 92% | 27,412 psi | 80% | 997 fps | 94.8% |
| Winchester 231² | <<locked>> | 68% | 29,878 psi | 88% | 961 fps | 100% |
| Winchester AutoComp | <<locked>> | 88% | 30,763 psi | 90% | 994 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% | 17,593 psi | 52% | 794 fps | 91.7% |
| Accurate No. 5*² | <<locked>> | 60% | 24,729 psi | 73% | 958 fps | 87.8% |
| Accurate Solo 1000² | <<locked>> | 60% | 18,811 psi | 55% | 781 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 16,056 psi | 47% | 771 fps | 98.4% |
| ADI AP 100* | <<locked>> | 96% | 24,831 psi | 73% | 955 fps | 85.4% |
| ADI AP 70N² | <<locked>> | 60% | 22,292 psi | 65% | 879 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 22,611 psi | 66% | 755 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 21,002 psi | 62% | 761 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 19,000 psi | 56% | 764 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 20,711 psi | 61% | 817 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 16,027 psi | 47% | 771 fps | 99.7% |
| Alliant BULLSEYE² | <<locked>> | 60% | 20,247 psi | 59% | 869 fps | 97.1% |
| Alliant Green Dot² | <<locked>> | 60% | 19,363 psi | 57% | 801 fps | 100% |
| Alliant Herco*² | <<locked>> | 60% | 12,198 psi | 36% | 699 fps | 88.8% |
| Alliant POWER PISTOL* | <<locked>> | 84% | 27,557 psi | 81% | 1027 fps | 86.5% |
| Alliant RED DOT² | <<locked>> | 60% | 19,174 psi | 56% | 778 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 21,799 psi | 64% | 896 fps | 97.3% |
| Alliant UNIQUE*² | 3.2 gr | 60% | 15,983 psi | 47% | 791 fps | 93.3% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 18,347 psi | 54% | 781 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 11,516 psi | 34% | 673 fps | 99.5% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 18,536 psi | 54% | 814 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 17,811 psi | 52% | 715 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 60% | 21,002 psi | 62% | 889 fps | 87.5% |
| Hodgdon Longshot*² | <<locked>> | 60% | 23,134 psi | 68% | 925 fps | 91.4% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,368 psi | 22% | 512 fps | 98.1% |
| Hodgdon Universal² | <<locked>> | 60% | 19,218 psi | 56% | 830 fps | 99.8% |
| Lovex D036*² | <<locked>> | 60% | 24,801 psi | 73% | 958 fps | 87.8% |
| Lovex S011² | <<locked>> | 60% | 22,698 psi | 67% | 856 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 17,405 psi | 51% | 810 fps | 96.7% |
| Maxam CSB 1² | <<locked>> | 60% | 14,779 psi | 43% | 738 fps | 97.7% |
| Maxam CSB 2² | <<locked>> | 60% | 15,331 psi | 45% | 778 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 16,781 psi | 49% | 768 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 18,710 psi | 55% | 791 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 21,248 psi | 62% | 797 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 21,147 psi | 62% | 889 fps | 95% |
| Ramshot True Blue*² | <<locked>> | 60% | 23,656 psi | 69% | 932 fps | 91.8% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 20,247 psi | 59% | 850 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 60% | 7,005 psi | 21% | 502 fps | 93.8% |
| ReloadSwiss RS 20*² | 3.3 gr | 60% | 13,764 psi | 40% | 761 fps | 93.4% |
| Rottweil P 801² | <<locked>> | 60% | 24,149 psi | 71% | 873 fps | 100% |
| Rottweil P 806* | <<locked>> | 84% | 18,260 psi | 54% | 935 fps | 85.9% |
| Shooters World Auto Pistol*² | <<locked>> | 60% | 24,801 psi | 73% | 958 fps | 87.8% |
| SNPE Vectan A0*² | <<locked>> | 60% | 15,258 psi | 45% | 748 fps | 92.2% |
| SNPE Vectan A1² | <<locked>> | 60% | 18,434 psi | 54% | 801 fps | 99.9% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 17,709 psi | 52% | 791 fps | 97.9% |
| SNPE Vectan BA10² | <<locked>> | 60% | 23,583 psi | 69% | 794 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 76% | 19,174 psi | 56% | 843 fps | 87.3% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 17,680 psi | 52% | 801 fps | 99% |
| SNPE Vectan SP 2*² | <<locked>> | 76% | 23,482 psi | 69% | 988 fps | 86.1% |
| Somchem MP200*² | <<locked>> | 60% | 17,695 psi | 52% | 817 fps | 93.3% |
| Somchem MS200*² | <<locked>> | 60% | 16,505 psi | 48% | 784 fps | 94.8% |
| Vihtavuori 3N37*² | <<locked>> | 68% | 17,361 psi | 51% | 837 fps | 87% |
| Vihtavuori N320² | <<locked>> | 60% | 19,450 psi | 57% | 814 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 10,878 psi | 32% | 620 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 16,882 psi | 50% | 814 fps | 99.7% |
| Vihtavuori N340*² | <<locked>> | 60% | 15,548 psi | 46% | 771 fps | 93.3% |
| Vihtavuori N350*² | <<locked>> | 72% | 17,013 psi | 50% | 827 fps | 87% |
| Winchester 231² | <<locked>> | 60% | 23,801 psi | 70% | 886 fps | 100% |
| Winchester AutoComp ² | 3.5 gr | 60% | 15,693 psi | 46% | 768 fps | 97.4% |
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 59 powders for 9 mm Para loaded with the .357 | 148gr | LOS WC. Rottweil P 806 delivers the highest muzzle velocity at 1,109 fps; across all powders the maximum-charge window runs from 673 fps to 1,109 fps. ADI AP 100 gives the best case fill at 100 %, and 34 of the 59 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. 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. Alliant UNIQUE, ReloadSwiss RS 20, Winchester AutoComp rank at the top here: for 9 mm Para with the .357 | 148gr | LOS WC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 5, ADI AP 100, Alliant POWER PISTOL burn incompletely and react more sensitively to barrel length and temperature. Accurate No. 2, Accurate No. 5, Accurate Solo 1000 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.