Load Specifications
Load data in caliber 9 mm Para with .355 | 124gr | Sellier & Bellot SP bullet and 57 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 Vihtavuori N340.
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>> | 84% | 29,675 psi | 87% | 1083 fps | 96.1% |
| Accurate Solo 1000 | <<locked>> | 84% | 29,269 psi | 86% | 1033 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 92% | 28,674 psi | 84% | 1076 fps | 100% |
| ADI AP 70N² | <<locked>> | 76% | 28,805 psi | 85% | 1096 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 30,661 psi | 90% | 948 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 29,066 psi | 85% | 965 fps | 100% |
| ADI AS 30 | <<locked>> | 84% | 29,486 psi | 87% | 1014 fps | 100% |
| ADI AS 50N | <<locked>> | 84% | 30,342 psi | 89% | 1066 fps | 100% |
| Alliant BE-86 | <<locked>> | 88% | 27,137 psi | 80% | 1056 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 80% | 29,211 psi | 86% | 1122 fps | 98.8% |
| Alliant Green Dot | <<locked>> | 88% | 29,907 psi | 88% | 1063 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 23,583 psi | 69% | 1047 fps | 96.3% |
| Alliant RED DOT | <<locked>> | 88% | 29,588 psi | 87% | 1037 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 29,428 psi | 86% | 1129 fps | 98.4% |
| Alliant UNIQUE | <<locked>> | 96% | 30,458 psi | 89% | 1155 fps | 98.8% |
| Baschieri & Pellagri 100 | <<locked>> | 88% | 29,979 psi | 88% | 1050 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 24,120 psi | 71% | 1004 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 80% | 27,485 psi | 81% | 1050 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 30,023 psi | 88% | 1112 fps | 100% |
| Hodgdon Clays | <<locked>> | 92% | 30,371 psi | 89% | 978 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 28,906 psi | 85% | 1066 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 76% | 28,311 psi | 83% | 1112 fps | 89.4% |
| Hodgdon Longshot*² | <<locked>> | 72% | 28,007 psi | 82% | 1112 fps | 91.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 9,790 psi | 29% | 696 fps | 98.9% |
| Hodgdon Universal | <<locked>> | 84% | 28,805 psi | 85% | 1096 fps | 100% |
| Lovex S011² | <<locked>> | 72% | 27,978 psi | 82% | 1037 fps | 100% |
| Lovex S020 | <<locked>> | 84% | 28,282 psi | 83% | 1096 fps | 99.3% |
| Maxam CSB 1 | <<locked>> | 96% | 29,399 psi | 86% | 1083 fps | 100% |
| Maxam CSB 2 | <<locked>> | 96% | 29,573 psi | 87% | 1115 fps | 100% |
| Maxam CSB 3 | <<locked>> | 88% | 28,834 psi | 85% | 1060 fps | 100% |
| Maxam CSB 4 | <<locked>> | 84% | 28,355 psi | 83% | 1040 fps | 100% |
| Maxam CSB 5 | <<locked>> | 80% | 30,110 psi | 88% | 1017 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 76% | 28,877 psi | 85% | 1119 fps | 96.5% |
| Ramshot True Blue*² | <<locked>> | 72% | 29,820 psi | 87% | 1132 fps | 92.4% |
| Ramshot Zip² | <<locked>> | 64% | 29,051 psi | 85% | 1073 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 84% | 30,168 psi | 89% | 1106 fps | 100% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 8,949 psi | 26% | 686 fps | 94.6% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 28,050 psi | 82% | 1132 fps | 99.4% |
| Rottweil P 801² | <<locked>> | 76% | 29,921 psi | 88% | 1070 fps | 100% |
| SNPE Vectan A0 | <<locked>> | 96% | 30,081 psi | 88% | 1099 fps | 98.4% |
| SNPE Vectan A1 | <<locked>> | 84% | 29,443 psi | 86% | 1070 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 84% | 28,297 psi | 83% | 1063 fps | 99.8% |
| SNPE Vectan BA10² | <<locked>> | 76% | 30,530 psi | 90% | 981 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 28,268 psi | 83% | 1096 fps | 90.6% |
| SNPE Vectan BA9 1/2 | <<locked>> | 88% | 29,704 psi | 87% | 1096 fps | 100% |
| Somchem MP200 | <<locked>> | 84% | 28,007 psi | 82% | 1102 fps | 97% |
| Somchem MS200 | <<locked>> | 88% | 28,601 psi | 84% | 1096 fps | 98.8% |
| Vihtavuori 3N37* | <<locked>> | 96% | 29,341 psi | 86% | 1142 fps | 92.6% |
| Vihtavuori N310² | <<locked>> | 64% | 27,934 psi | 82% | 965 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 29,066 psi | 85% | 1060 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 19,029 psi | 56% | 883 fps | 100% |
| Vihtavuori N330 | <<locked>> | 88% | 30,690 psi | 90% | 1129 fps | 100% |
| Vihtavuori N340 | <<locked>> | 92% | 29,791 psi | 87% | 1112 fps | 98.6% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 28,631 psi | 84% | 1129 fps | 92.6% |
| Winchester 231² | <<locked>> | 72% | 29,051 psi | 85% | 1073 fps | 100% |
| Winchester 572*² | <<locked>> | 64% | 28,166 psi | 83% | 1119 fps | 90.7% |
| Winchester AutoComp | <<locked>> | 92% | 28,572 psi | 84% | 1089 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% | 14,736 psi | 43% | 827 fps | 85.3% |
| Accurate Solo 1000² | <<locked>> | 60% | 16,259 psi | 48% | 837 fps | 100% |
| Accurate Solo 1250*² | <<locked>> | 60% | 12,299 psi | 36% | 784 fps | 92.9% |
| ADI AP 70N² | <<locked>> | 60% | 17,970 psi | 53% | 922 fps | 98.4% |
| ADI APS 350² | <<locked>> | 60% | 19,174 psi | 56% | 807 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 17,666 psi | 52% | 810 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 16,070 psi | 47% | 820 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 17,289 psi | 51% | 873 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 12,647 psi | 37% | 801 fps | 96.1% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 17,071 psi | 50% | 909 fps | 92.3% |
| Alliant Green Dot² | <<locked>> | 60% | 15,273 psi | 45% | 833 fps | 99.6% |
| Alliant Herco*² | <<locked>> | 72% | 12,386 psi | 36% | 804 fps | 85.7% |
| Alliant RED DOT² | <<locked>> | 60% | 15,040 psi | 44% | 817 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 18,434 psi | 54% | 938 fps | 92.6% |
| Alliant UNIQUE*² | 3.3 gr | 60% | 12,604 psi | 37% | 810 fps | 85.9% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 14,286 psi | 42% | 807 fps | 98.5% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 60% | 8,688 psi | 25% | 689 fps | 94.9% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 14,692 psi | 43% | 850 fps | 99.3% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 23,308 psi | 68% | 1017 fps | 99.1% |
| Hodgdon Clays² | <<locked>> | 60% | 14,721 psi | 43% | 761 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 25,193 psi | 74% | 1017 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 68% | 22,379 psi | 66% | 1017 fps | 85.2% |
| Hodgdon Longshot*² | <<locked>> | 64% | 21,219 psi | 62% | 997 fps | 86.6% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 4,873 psi | 14% | 502 fps | 89.2% |
| Hodgdon Universal² | <<locked>> | 60% | 15,389 psi | 45% | 866 fps | 96.8% |
| Lovex S011² | <<locked>> | 60% | 19,479 psi | 57% | 912 fps | 99.3% |
| Lovex S020*² | <<locked>> | 60% | 13,764 psi | 40% | 833 fps | 90.6% |
| Maxam CSB 1*² | <<locked>> | 60% | 11,908 psi | 35% | 768 fps | 92.5% |
| Maxam CSB 2² | <<locked>> | 60% | 11,443 psi | 34% | 801 fps | 97.3% |
| Maxam CSB 3² | <<locked>> | 60% | 13,808 psi | 41% | 810 fps | 98.2% |
| Maxam CSB 4² | <<locked>> | 60% | 15,664 psi | 46% | 843 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 18,144 psi | 53% | 860 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 17,303 psi | 51% | 919 fps | 88.9% |
| Ramshot True Blue*² | <<locked>> | 64% | 22,640 psi | 66% | 1020 fps | 87.9% |
| Ramshot Zip² | <<locked>> | 60% | 25,338 psi | 74% | 1024 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 15,519 psi | 46% | 889 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 68% | 5,381 psi | 16% | 535 fps | 85.4% |
| ReloadSwiss RS 20*² | 3.6 gr | 64% | 12,038 psi | 35% | 810 fps | 87.3% |
| Rottweil P 801² | <<locked>> | 60% | 19,276 psi | 57% | 928 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 64% | 13,938 psi | 41% | 814 fps | 87.5% |
| SNPE Vectan A1² | <<locked>> | 60% | 15,490 psi | 45% | 843 fps | 97.5% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 14,808 psi | 43% | 827 fps | 93.4% |
| SNPE Vectan BA10² | <<locked>> | 60% | 19,899 psi | 58% | 846 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 88% | 20,653 psi | 61% | 971 fps | 85.2% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 60% | 14,460 psi | 42% | 833 fps | 94.9% |
| Somchem MP200*² | <<locked>> | 60% | 14,272 psi | 42% | 840 fps | 86.5% |
| Somchem MS200*² | <<locked>> | 60% | 13,518 psi | 40% | 814 fps | 88.6% |
| Vihtavuori 3N37* | <<locked>> | 80% | 19,305 psi | 57% | 978 fps | 85.5% |
| Vihtavuori N310² | <<locked>> | 60% | 24,845 psi | 73% | 932 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 14,794 psi | 43% | 843 fps | 99.9% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 7,426 psi | 22% | 627 fps | 99.4% |
| Vihtavuori N330² | <<locked>> | 60% | 13,242 psi | 39% | 840 fps | 95.9% |
| Vihtavuori N340*² | 3.4 gr | 60% | 12,372 psi | 36% | 791 fps | 86.1% |
| Vihtavuori N350* | <<locked>> | 88% | 20,276 psi | 59% | 991 fps | 86.8% |
| Winchester 231² | <<locked>> | 60% | 19,928 psi | 58% | 938 fps | 99.3% |
| Winchester 572*² | <<locked>> | 60% | 23,830 psi | 70% | 1050 fps | 87.9% |
| Winchester AutoComp *² | <<locked>> | 60% | 12,314 psi | 36% | 791 fps | 91.5% |
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 57 powders for 9 mm Para loaded with the .355 | 124gr | Sellier & Bellot SP. Alliant UNIQUE delivers the highest muzzle velocity at 1,155 fps; across all powders the maximum-charge window runs from 686 fps to 1,155 fps. Alliant Herco gives the best case fill at 100 %, and 42 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (235 MPa), the top charges use 26–90 %, 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, Vihtavuori N340 rank at the top here: for 9 mm Para with the .355 | 124gr | Sellier & Bellot SP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon HS-6, Hodgdon Longshot, Ramshot True Blue 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.