Load Specifications
Load data in caliber 9 mm Para with .355 | 115gr | Geco FMJ 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, Lovex S020 and Vihtavuori N330.
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% | 28,253 psi | 83% | 1106 fps | 94.3% |
| Accurate Solo 1000 | <<locked>> | 84% | 28,065 psi | 82% | 1063 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 96% | 29,907 psi | 88% | 1142 fps | 100% |
| ADI AP 70N | <<locked>> | 80% | 29,834 psi | 88% | 1158 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 29,704 psi | 87% | 981 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 28,137 psi | 83% | 997 fps | 100% |
| ADI AS 30 | <<locked>> | 88% | 29,689 psi | 87% | 1063 fps | 100% |
| ADI AS 50N | <<locked>> | 84% | 29,022 psi | 85% | 1099 fps | 100% |
| Alliant BE-86 | <<locked>> | 92% | 29,283 psi | 86% | 1132 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 84% | 30,429 psi | 89% | 1188 fps | 98.5% |
| Alliant Green Dot | <<locked>> | 88% | 28,616 psi | 84% | 1096 fps | 100% |
| Alliant Herco*ᴾ | <<locked>> | 100% | 22,365 psi | 66% | 1066 fps | 94.5% |
| Alliant RED DOT | <<locked>> | 88% | 28,311 psi | 83% | 1070 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 28,079 psi | 82% | 1152 fps | 97.1% |
| Alliant UNIQUE | <<locked>> | 96% | 28,877 psi | 85% | 1178 fps | 97.5% |
| Baschieri & Pellagri 100 | <<locked>> | 88% | 28,543 psi | 84% | 1079 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 21,770 psi | 64% | 1017 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 28,166 psi | 83% | 1106 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 28,529 psi | 84% | 1138 fps | 99.7% |
| Hodgdon Clays | <<locked>> | 92% | 29,356 psi | 86% | 1010 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 27,615 psi | 81% | 1096 fps | 100% |
| Hodgdon Longshot*² | <<locked>> | 76% | 29,747 psi | 87% | 1178 fps | 90.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 9,239 psi | 27% | 712 fps | 97.7% |
| Hodgdon Universal | <<locked>> | 88% | 29,834 psi | 88% | 1158 fps | 100% |
| Lovex S011² | <<locked>> | 76% | 29,515 psi | 87% | 1102 fps | 100% |
| Lovex S020 | <<locked>> | 88% | 30,821 psi | 90% | 1175 fps | 99.2% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 30,458 psi | 89% | 1145 fps | 100% |
| Maxam CSB 2ᴾ | <<locked>> | 100% | 30,414 psi | 89% | 1178 fps | 100% |
| Maxam CSB 3 | <<locked>> | 92% | 30,066 psi | 88% | 1125 fps | 100% |
| Maxam CSB 4 | <<locked>> | 88% | 29,776 psi | 87% | 1102 fps | 100% |
| Maxam CSB 5 | <<locked>> | 84% | 30,269 psi | 89% | 1066 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 76% | 27,340 psi | 80% | 1142 fps | 94.8% |
| Ramshot True Blue*² | <<locked>> | 72% | 28,282 psi | 83% | 1152 fps | 90.1% |
| Ramshot Zip² | <<locked>> | 68% | 30,240 psi | 89% | 1135 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 84% | 28,340 psi | 83% | 1138 fps | 100% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 8,441 psi | 25% | 699 fps | 92.4% |
| ReloadSwiss RS 20ᴾ | <<locked>> | 100% | 28,863 psi | 85% | 1191 fps | 99% |
| Rottweil P 801² | <<locked>> | 76% | 28,253 psi | 83% | 1102 fps | 100% |
| SNPE Vectan A0 | <<locked>> | 96% | 28,747 psi | 84% | 1125 fps | 97.1% |
| SNPE Vectan A1 | <<locked>> | 88% | 30,530 psi | 90% | 1129 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 88% | 29,457 psi | 86% | 1122 fps | 99.6% |
| SNPE Vectan BA10² | <<locked>> | 76% | 29,559 psi | 87% | 1014 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 26,803 psi | 79% | 1115 fps | 88.2% |
| SNPE Vectan BA9 1/2 | <<locked>> | 92% | 30,806 psi | 90% | 1158 fps | 100% |
| Somchem MP200 | <<locked>> | 88% | 30,081 psi | 88% | 1175 fps | 96.8% |
| Somchem MS200 | <<locked>> | 92% | 29,646 psi | 87% | 1155 fps | 98.3% |
| Vihtavuori 3N37* | <<locked>> | 96% | 27,572 psi | 81% | 1161 fps | 90.2% |
| Vihtavuori N310² | <<locked>> | 68% | 29,849 psi | 88% | 1033 fps | 100% |
| Vihtavuori N320 | <<locked>> | 88% | 30,487 psi | 89% | 1125 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 16,955 psi | 50% | 892 fps | 100% |
| Vihtavuori N330 | <<locked>> | 88% | 28,805 psi | 85% | 1158 fps | 100% |
| Vihtavuori N340 | <<locked>> | 92% | 28,224 psi | 83% | 1138 fps | 97.3% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 25,817 psi | 76% | 1129 fps | 89.4% |
| Winchester 231² | <<locked>> | 76% | 30,240 psi | 89% | 1135 fps | 100% |
| Winchester 244² | <<locked>> | 64% | 30,501 psi | 89% | 1132 fps | 100% |
| Winchester 572*² | <<locked>> | 68% | 30,023 psi | 88% | 1191 fps | 90.2% |
| Winchester AutoComp | <<locked>> | 96% | 29,254 psi | 86% | 1145 fps | 99.8% |
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% | 17,550 psi | 51% | 922 fps | 86.8% |
| Accurate Solo 1000² | <<locked>> | 60% | 15,577 psi | 46% | 860 fps | 99.6% |
| Accurate Solo 1250*² | <<locked>> | 60% | 11,661 psi | 34% | 797 fps | 90.6% |
| ADI AP 70N² | <<locked>> | 60% | 16,984 psi | 50% | 942 fps | 97% |
| ADI APS 350² | <<locked>> | 60% | 18,492 psi | 54% | 833 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 17,027 psi | 50% | 840 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 15,360 psi | 45% | 846 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 15,606 psi | 46% | 873 fps | 99.3% |
| Alliant BE-86*² | <<locked>> | 60% | 11,966 psi | 35% | 817 fps | 94.2% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 15,461 psi | 45% | 906 fps | 89.1% |
| Alliant Green Dot² | <<locked>> | 60% | 14,562 psi | 43% | 853 fps | 98.9% |
| Alliant Herco* | <<locked>> | 80% | 14,040 psi | 41% | 883 fps | 86.5% |
| Alliant RED DOT² | <<locked>> | 60% | 14,344 psi | 42% | 840 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 17,593 psi | 52% | 958 fps | 90.4% |
| Alliant UNIQUE*² | 3.5 gr | 64% | 13,213 psi | 39% | 860 fps | 85.2% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 13,619 psi | 40% | 827 fps | 97.2% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 60% | 8,224 psi | 24% | 702 fps | 92.6% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 13,895 psi | 41% | 866 fps | 98.3% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 22,017 psi | 65% | 1037 fps | 98% |
| Hodgdon Clays² | <<locked>> | 60% | 14,156 psi | 42% | 784 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 24,018 psi | 70% | 1043 fps | 99.9% |
| Hodgdon Longshot*² | <<locked>> | 68% | 23,540 psi | 69% | 1079 fps | 86.9% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 4,641 psi | 14% | 512 fps | 86.6% |
| Hodgdon Universal*² | <<locked>> | 60% | 13,822 psi | 41% | 863 fps | 94.3% |
| Lovex S011² | <<locked>> | 60% | 18,666 psi | 55% | 935 fps | 98.4% |
| Lovex S020*² | 3.5 gr | 60% | 12,966 psi | 38% | 850 fps | 88.1% |
| Maxam CSB 1*² | <<locked>> | 60% | 11,313 psi | 33% | 781 fps | 90.1% |
| Maxam CSB 2² | <<locked>> | 60% | 10,631 psi | 31% | 814 fps | 95.3% |
| Maxam CSB 3² | <<locked>> | 60% | 13,155 psi | 39% | 830 fps | 96.8% |
| Maxam CSB 4² | <<locked>> | 60% | 14,924 psi | 44% | 863 fps | 99.6% |
| Maxam CSB 5² | <<locked>> | 60% | 16,186 psi | 47% | 866 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 16,433 psi | 48% | 935 fps | 86.3% |
| Ramshot True Blue*² | <<locked>> | 64% | 21,466 psi | 63% | 1037 fps | 85.2% |
| Ramshot Zip² | <<locked>> | 60% | 24,163 psi | 71% | 1050 fps | 99.8% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 14,475 psi | 42% | 909 fps | 99.8% |
| ReloadSwiss RS 14* | <<locked>> | 80% | 6,063 psi | 18% | 597 fps | 86.2% |
| ReloadSwiss RS 20*² | <<locked>> | 68% | 12,618 psi | 37% | 856 fps | 86.4% |
| Rottweil P 801² | <<locked>> | 60% | 17,187 psi | 50% | 935 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 68% | 14,692 psi | 43% | 863 fps | 86.9% |
| SNPE Vectan A1² | <<locked>> | 60% | 14,779 psi | 43% | 863 fps | 96% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 14,170 psi | 42% | 846 fps | 91.4% |
| SNPE Vectan BA10² | <<locked>> | 60% | 19,232 psi | 56% | 876 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 96% | 23,830 psi | 70% | 1066 fps | 86.1% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 60% | 13,750 psi | 40% | 850 fps | 92.9% |
| Somchem MP200*² | <<locked>> | 64% | 15,635 psi | 46% | 909 fps | 86.6% |
| Somchem MS200*² | <<locked>> | 60% | 12,879 psi | 38% | 827 fps | 86.1% |
| Vihtavuori 3N37* | <<locked>> | 88% | 22,437 psi | 66% | 1073 fps | 86.6% |
| Vihtavuori N310² | <<locked>> | 60% | 23,743 psi | 70% | 961 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 13,938 psi | 41% | 863 fps | 99.4% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 6,976 psi | 20% | 640 fps | 98.2% |
| Vihtavuori N330*² | 3.4 gr | 60% | 12,473 psi | 37% | 856 fps | 93.7% |
| Vihtavuori N340*² | <<locked>> | 64% | 12,995 psi | 38% | 840 fps | 85.3% |
| Vihtavuori N350* | <<locked>> | 92% | 21,756 psi | 64% | 1056 fps | 86.3% |
| Winchester 231² | <<locked>> | 60% | 19,000 psi | 56% | 961 fps | 98.4% |
| Winchester 244² | <<locked>> | 60% | 26,600 psi | 78% | 1083 fps | 100% |
| Winchester 572*² | <<locked>> | 60% | 22,510 psi | 66% | 1066 fps | 85.1% |
| Winchester AutoComp *² | <<locked>> | 60% | 11,705 psi | 34% | 804 fps | 89.1% |
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 | 115gr | Geco FMJ. ReloadSwiss RS 20 delivers the highest muzzle velocity at 1,191 fps; across all powders the maximum-charge window runs from 699 fps to 1,191 fps. Alliant Herco gives the best case fill at 100 %, and 43 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 25–90 %, 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, Lovex S020, Vihtavuori N330 rank at the top here: for 9 mm Para with the .355 | 115gr | Geco FMJ they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 2, Alliant Herco, Hodgdon Longshot 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.