Load Specifications
Load data in caliber 9 mm Para with .355 | 124gr | Nosler Assured Stopping Power bullet and 58 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 20, Alliant UNIQUE and Hodgdon CFE Pistol.
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>> | 88% | 29,588 psi | 87% | 1047 fps | 94.9% |
| Accurate Solo 1000 | <<locked>> | 88% | 29,544 psi | 87% | 1010 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 96% | 29,602 psi | 87% | 1063 fps | 100% |
| ADI AP 70N | <<locked>> | 80% | 28,050 psi | 82% | 1063 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 28,485 psi | 84% | 902 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 30,719 psi | 90% | 958 fps | 100% |
| ADI AS 30 | <<locked>> | 88% | 29,414 psi | 86% | 991 fps | 100% |
| ADI AS 50N | <<locked>> | 88% | 30,705 psi | 90% | 1043 fps | 100% |
| Alliant BE-86 | <<locked>> | 96% | 29,892 psi | 88% | 1063 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 84% | 28,631 psi | 84% | 1086 fps | 98% |
| Alliant Green Dot | <<locked>> | 92% | 30,211 psi | 89% | 1043 fps | 100% |
| Alliant Herco*ᴾ | <<locked>> | 100% | 21,538 psi | 63% | 988 fps | 94.1% |
| Alliant RED DOT | <<locked>> | 92% | 29,356 psi | 86% | 1010 fps | 100% |
| Alliant Sport Pistol | <<locked>> | 80% | 30,443 psi | 89% | 1112 fps | 98% |
| Alliant UNIQUEᴾ | <<locked>> | 100% | 30,429 psi | 89% | 1125 fps | 98.1% |
| Baschieri & Pellagri 100 | <<locked>> | 88% | 27,688 psi | 81% | 1001 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 21,582 psi | 63% | 948 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 88% | 30,792 psi | 90% | 1063 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 72% | 30,197 psi | 89% | 1086 fps | 99.9% |
| Hodgdon Clays | <<locked>> | 96% | 30,647 psi | 90% | 955 fps | 100% |
| Hodgdon HP38² | <<locked>> | 68% | 29,762 psi | 87% | 1050 fps | 100% |
| Hodgdon HS-6* | <<locked>> | 80% | 29,588 psi | 87% | 1096 fps | 88.6% |
| Hodgdon Longshot*² | <<locked>> | 76% | 29,022 psi | 85% | 1093 fps | 90.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 9,036 psi | 27% | 663 fps | 97.6% |
| Hodgdon Universal | <<locked>> | 88% | 28,050 psi | 82% | 1063 fps | 100% |
| Lovex S011² | <<locked>> | 76% | 28,514 psi | 84% | 1017 fps | 100% |
| Lovex S020 | <<locked>> | 88% | 29,559 psi | 87% | 1083 fps | 99% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 29,008 psi | 85% | 1053 fps | 100% |
| Maxam CSB 2ᴾ | <<locked>> | 100% | 28,747 psi | 84% | 1083 fps | 100% |
| Maxam CSB 3 | <<locked>> | 92% | 27,891 psi | 82% | 1024 fps | 100% |
| Maxam CSB 4 | <<locked>> | 88% | 28,529 psi | 84% | 1017 fps | 100% |
| Maxam CSB 5 | <<locked>> | 84% | 29,936 psi | 88% | 994 fps | 100% |
| Ramshot Silhouette | <<locked>> | 80% | 29,414 psi | 86% | 1096 fps | 95.8% |
| Ramshot True Blue*² | <<locked>> | 76% | 29,820 psi | 87% | 1096 fps | 91% |
| Ramshot Zip² | <<locked>> | 68% | 29,965 psi | 88% | 1060 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 88% | 30,690 psi | 90% | 1093 fps | 100% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 8,296 psi | 24% | 653 fps | 92.5% |
| ReloadSwiss RS 20ᴾ | <<locked>> | 100% | 28,268 psi | 83% | 1106 fps | 98.9% |
| Rottweil P 801 | <<locked>> | 80% | 30,371 psi | 89% | 1053 fps | 100% |
| SNPE Vectan A0ᴾ | <<locked>> | 100% | 30,356 psi | 89% | 1073 fps | 97.7% |
| SNPE Vectan A1 | <<locked>> | 88% | 29,443 psi | 86% | 1043 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 88% | 28,282 psi | 83% | 1033 fps | 99.4% |
| SNPE Vectan BA10 | <<locked>> | 80% | 30,705 psi | 90% | 958 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 25,976 psi | 76% | 1030 fps | 87.7% |
| SNPE Vectan BA9 1/2 | <<locked>> | 92% | 29,370 psi | 86% | 1063 fps | 100% |
| Somchem MP200 | <<locked>> | 92% | 30,748 psi | 90% | 1109 fps | 97.1% |
| Somchem MS200 | <<locked>> | 92% | 28,384 psi | 83% | 1063 fps | 98.1% |
| Vihtavuori 3N37*ᴾ | <<locked>> | 100% | 29,298 psi | 86% | 1109 fps | 91.2% |
| Vihtavuori N310² | <<locked>> | 68% | 28,935 psi | 85% | 955 fps | 100% |
| Vihtavuori N320 | <<locked>> | 88% | 29,370 psi | 86% | 1040 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 16,650 psi | 49% | 830 fps | 100% |
| Vihtavuori N330 | <<locked>> | 92% | 30,298 psi | 89% | 1099 fps | 100% |
| Vihtavuori N340 | <<locked>> | 96% | 30,008 psi | 88% | 1086 fps | 97.9% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 24,642 psi | 72% | 1037 fps | 88.7% |
| Winchester 231² | <<locked>> | 76% | 29,965 psi | 88% | 1060 fps | 100% |
| Winchester 244² | <<locked>> | 64% | 28,631 psi | 84% | 1033 fps | 100% |
| Winchester 572*² | <<locked>> | 68% | 28,601 psi | 84% | 1093 fps | 89.5% |
| Winchester AutoComp ᴾ | <<locked>> | 100% | 30,226 psi | 89% | 1083 fps | 99.9% |
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>> | 68% | 17,390 psi | 51% | 860 fps | 86.8% |
| Accurate Solo 1000² | <<locked>> | 60% | 15,345 psi | 45% | 797 fps | 99.6% |
| Accurate Solo 1250*² | <<locked>> | 60% | 11,603 psi | 34% | 745 fps | 90.8% |
| ADI AP 70N² | <<locked>> | 60% | 16,505 psi | 48% | 873 fps | 96.9% |
| ADI APS 350² | <<locked>> | 60% | 17,753 psi | 52% | 768 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 16,578 psi | 49% | 774 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 14,881 psi | 44% | 781 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 15,476 psi | 45% | 817 fps | 99.3% |
| Alliant BE-86*² | <<locked>> | 60% | 11,531 psi | 34% | 755 fps | 93.9% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 15,693 psi | 46% | 853 fps | 89.7% |
| Alliant Green Dot² | <<locked>> | 60% | 14,315 psi | 42% | 791 fps | 98.9% |
| Alliant Herco* | <<locked>> | 80% | 13,416 psi | 39% | 814 fps | 86% |
| Alliant RED DOT² | <<locked>> | 60% | 13,750 psi | 40% | 774 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 17,245 psi | 51% | 889 fps | 90.3% |
| Alliant UNIQUE*² | 3.3 gr | 68% | 14,272 psi | 42% | 837 fps | 87.1% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 13,547 psi | 40% | 771 fps | 97.3% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 60% | 7,658 psi | 22% | 640 fps | 91.7% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 13,373 psi | 39% | 801 fps | 98.1% |
| Hodgdon CFE Pistol² | 4.1 gr | 60% | 20,566 psi | 60% | 948 fps | 97.5% |
| Hodgdon Clays² | <<locked>> | 60% | 13,576 psi | 40% | 722 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 23,032 psi | 68% | 961 fps | 99.9% |
| Hodgdon HS-6*² | <<locked>> | 76% | 26,020 psi | 76% | 1047 fps | 86.3% |
| Hodgdon Longshot*² | <<locked>> | 68% | 22,278 psi | 65% | 991 fps | 86.1% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 4,511 psi | 13% | 472 fps | 86.3% |
| Hodgdon Universal*² | <<locked>> | 60% | 13,851 psi | 41% | 810 fps | 94.5% |
| Lovex S011² | <<locked>> | 60% | 17,970 psi | 53% | 860 fps | 98.2% |
| Lovex S020*² | <<locked>> | 60% | 12,488 psi | 37% | 784 fps | 87.6% |
| Maxam CSB 1*² | <<locked>> | 60% | 10,530 psi | 31% | 712 fps | 89.2% |
| Maxam CSB 2*² | <<locked>> | 60% | 9,834 psi | 29% | 741 fps | 94.5% |
| Maxam CSB 3² | <<locked>> | 60% | 12,995 psi | 38% | 774 fps | 96.9% |
| Maxam CSB 4² | <<locked>> | 60% | 13,793 psi | 40% | 784 fps | 99.2% |
| Maxam CSB 5² | <<locked>> | 60% | 15,780 psi | 46% | 804 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 15,853 psi | 47% | 863 fps | 85.9% |
| Ramshot True Blue*² | <<locked>> | 68% | 22,960 psi | 67% | 994 fps | 86.6% |
| Ramshot Zip² | <<locked>> | 60% | 23,264 psi | 68% | 968 fps | 99.7% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 13,663 psi | 40% | 837 fps | 99.7% |
| ReloadSwiss RS 14* | <<locked>> | 80% | 5,714 psi | 17% | 545 fps | 85.4% |
| ReloadSwiss RS 20*² | 3.4 gr | 68% | 12,386 psi | 36% | 797 fps | 86.3% |
| Rottweil P 801² | <<locked>> | 60% | 16,520 psi | 48% | 866 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 68% | 13,634 psi | 40% | 781 fps | 85.7% |
| SNPE Vectan A1² | <<locked>> | 60% | 14,344 psi | 42% | 797 fps | 95.8% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 13,721 psi | 40% | 781 fps | 91% |
| SNPE Vectan BA10² | <<locked>> | 60% | 19,014 psi | 56% | 814 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 96% | 22,742 psi | 67% | 981 fps | 85.4% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 60% | 13,097 psi | 38% | 781 fps | 92.4% |
| Somchem MP200*² | <<locked>> | 64% | 14,736 psi | 43% | 833 fps | 85.7% |
| Somchem MS200*² | <<locked>> | 60% | 12,285 psi | 36% | 758 fps | 85.5% |
| Vihtavuori 3N37* | <<locked>> | 88% | 21,118 psi | 62% | 984 fps | 85.7% |
| Vihtavuori N310² | <<locked>> | 60% | 22,220 psi | 65% | 879 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 13,822 psi | 41% | 807 fps | 99.4% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 6,512 psi | 19% | 584 fps | 97.8% |
| Vihtavuori N330*² | <<locked>> | 60% | 11,937 psi | 35% | 787 fps | 93.2% |
| Vihtavuori N340*² | <<locked>> | 64% | 12,647 psi | 37% | 781 fps | 85.1% |
| Vihtavuori N350* | <<locked>> | 92% | 20,320 psi | 60% | 965 fps | 85.2% |
| Winchester 231² | <<locked>> | 60% | 18,681 psi | 55% | 896 fps | 98.4% |
| Winchester 244² | <<locked>> | 60% | 25,788 psi | 76% | 1001 fps | 100% |
| Winchester 572*² | <<locked>> | 64% | 24,889 psi | 73% | 1037 fps | 87.1% |
| Winchester AutoComp *² | <<locked>> | 60% | 10,762 psi | 32% | 728 fps | 87.9% |
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 58 powders for 9 mm Para loaded with the .355 | 124gr | Nosler Assured Stopping Power. Alliant UNIQUE delivers the highest muzzle velocity at 1,125 fps; across all powders the maximum-charge window runs from 653 fps to 1,125 fps. Alliant Herco gives the best case fill at 100 %, and 48 of the 58 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (235 MPa), the top charges use 24–90 %, leaving at least 10 % headroom. Alliant Herco, Alliant UNIQUE, 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. ReloadSwiss RS 20, Alliant UNIQUE, Hodgdon CFE Pistol rank at the top here: for 9 mm Para with the .355 | 124gr | Nosler Assured Stopping Power they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 2, Alliant Herco, Hodgdon HS-6 burn incompletely and react more sensitively to barrel length and temperature. Accurate No. 2, Accurate Solo 1000, Accurate Solo 1250 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.