Load Specifications
Load data in caliber 9 mm Para with .355 | 115gr | Speer JHP 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 Maxam CSB 2.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2* | <<locked>> | 80% | 27,137 psi | 80% | 1119 fps | 94.9% |
| Accurate Solo 1000 | <<locked>> | 84% | 30,458 psi | 89% | 1119 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 92% | 30,327 psi | 89% | 1171 fps | 100% |
| ADI AP 70N² | <<locked>> | 76% | 29,240 psi | 86% | 1175 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 28,703 psi | 84% | 994 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 29,530 psi | 87% | 1037 fps | 100% |
| ADI AS 30 | <<locked>> | 84% | 29,718 psi | 87% | 1086 fps | 100% |
| ADI AS 50N | <<locked>> | 80% | 28,906 psi | 85% | 1119 fps | 100% |
| Alliant BE-86 | <<locked>> | 88% | 28,050 psi | 82% | 1138 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 80% | 29,631 psi | 87% | 1204 fps | 98.8% |
| Alliant Green Dot | <<locked>> | 84% | 28,456 psi | 83% | 1115 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 24,149 psi | 71% | 1122 fps | 96.3% |
| Alliant RED DOT | <<locked>> | 88% | 29,907 psi | 88% | 1109 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 30,821 psi | 90% | 1220 fps | 98.6% |
| Alliant UNIQUE | <<locked>> | 92% | 29,109 psi | 85% | 1207 fps | 98.2% |
| Baschieri & Pellagri 100 | <<locked>> | 84% | 28,079 psi | 82% | 1096 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 24,076 psi | 71% | 1066 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 80% | 28,514 psi | 84% | 1129 fps | 100% |
| Hodgdon CFE Pistol | <<locked>> | 84% | 27,586 psi | 81% | 1142 fps | 100% |
| Hodgdon Clays² | <<locked>> | 76% | 28,921 psi | 85% | 1007 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 30,589 psi | 90% | 1158 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 76% | 29,921 psi | 88% | 1207 fps | 90% |
| Hodgdon Longshot*² | <<locked>> | 72% | 28,747 psi | 84% | 1191 fps | 91.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 10,486 psi | 31% | 761 fps | 99.2% |
| Hodgdon Universal | <<locked>> | 84% | 29,240 psi | 86% | 1175 fps | 100% |
| Lovex S011² | <<locked>> | 72% | 28,964 psi | 85% | 1119 fps | 100% |
| Lovex S020 | <<locked>> | 84% | 29,588 psi | 87% | 1181 fps | 99.4% |
| Maxam CSB 1 | <<locked>> | 96% | 30,734 psi | 90% | 1171 fps | 100% |
| Maxam CSB 2 | <<locked>> | 92% | 28,514 psi | 84% | 1171 fps | 100% |
| Maxam CSB 3 | <<locked>> | 88% | 29,559 psi | 87% | 1142 fps | 100% |
| Maxam CSB 4 | <<locked>> | 84% | 29,486 psi | 87% | 1122 fps | 100% |
| Maxam CSB 5 | <<locked>> | 80% | 30,385 psi | 89% | 1089 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 76% | 29,182 psi | 86% | 1194 fps | 96.4% |
| Ramshot True Blue*² | <<locked>> | 72% | 30,545 psi | 90% | 1214 fps | 92.5% |
| Ramshot Zip² | <<locked>> | 64% | 29,385 psi | 86% | 1148 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 29,370 psi | 86% | 1168 fps | 100% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 9,050 psi | 27% | 732 fps | 94.4% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 29,849 psi | 88% | 1230 fps | 99.6% |
| Rottweil P 801² | <<locked>> | 76% | 30,589 psi | 90% | 1148 fps | 100% |
| SNPE Vectan A0 | <<locked>> | 92% | 28,631 psi | 84% | 1152 fps | 97.8% |
| SNPE Vectan A1 | <<locked>> | 84% | 30,458 psi | 89% | 1152 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 84% | 29,385 psi | 86% | 1145 fps | 99.8% |
| SNPE Vectan BA10² | <<locked>> | 76% | 30,821 psi | 90% | 1050 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 28,863 psi | 85% | 1178 fps | 90.7% |
| SNPE Vectan BA9 1/2 | <<locked>> | 84% | 27,557 psi | 81% | 1135 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 92% | 30,589 psi | 90% | 1289 fps | 87.1% |
| Somchem MP200 | <<locked>> | 84% | 28,732 psi | 84% | 1184 fps | 97% |
| Somchem MS200 | <<locked>> | 88% | 28,645 psi | 84% | 1168 fps | 98.7% |
| Vihtavuori 3N37* | <<locked>> | 92% | 27,891 psi | 82% | 1194 fps | 91.6% |
| Vihtavuori N310² | <<locked>> | 64% | 28,877 psi | 85% | 1043 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 30,110 psi | 88% | 1142 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 19,145 psi | 56% | 938 fps | 100% |
| Vihtavuori N330 | <<locked>> | 84% | 28,065 psi | 82% | 1168 fps | 100% |
| Vihtavuori N340 | <<locked>> | 92% | 30,705 psi | 90% | 1198 fps | 98.7% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 29,515 psi | 87% | 1211 fps | 92.7% |
| Winchester 231² | <<locked>> | 72% | 29,385 psi | 86% | 1148 fps | 100% |
| Winchester 572*² | <<locked>> | 64% | 28,485 psi | 84% | 1198 fps | 90.6% |
| Winchester AutoComp | <<locked>> | 92% | 28,993 psi | 85% | 1168 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>> | 60% | 15,084 psi | 44% | 889 fps | 85.4% |
| Accurate Solo 1000² | <<locked>> | 60% | 16,375 psi | 48% | 896 fps | 99.9% |
| Accurate Solo 1250*² | <<locked>> | 60% | 13,010 psi | 38% | 853 fps | 93.4% |
| ADI AP 70N² | <<locked>> | 60% | 18,347 psi | 54% | 988 fps | 98.3% |
| ADI APS 350² | <<locked>> | 60% | 19,754 psi | 58% | 873 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 18,971 psi | 56% | 889 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 16,404 psi | 48% | 883 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 17,289 psi | 51% | 928 fps | 99.9% |
| Alliant BE-86² | <<locked>> | 60% | 13,010 psi | 38% | 860 fps | 96.1% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 17,535 psi | 51% | 978 fps | 92.4% |
| Alliant Green Dot² | <<locked>> | 60% | 16,259 psi | 48% | 909 fps | 99.8% |
| Alliant Herco*² | <<locked>> | 72% | 13,068 psi | 38% | 873 fps | 86.2% |
| Alliant RED DOT² | <<locked>> | 60% | 15,476 psi | 45% | 879 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 19,537 psi | 57% | 1020 fps | 93.2% |
| Alliant UNIQUE*² | 3.6 gr | 60% | 12,459 psi | 37% | 856 fps | 85.1% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 15,069 psi | 44% | 879 fps | 98.8% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 60% | 8,731 psi | 26% | 732 fps | 94.4% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 15,098 psi | 44% | 909 fps | 99.3% |
| Hodgdon CFE Pistol*² | <<locked>> | 60% | 14,069 psi | 41% | 886 fps | 94% |
| Hodgdon Clays² | <<locked>> | 60% | 19,885 psi | 58% | 886 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 25,962 psi | 76% | 1096 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 72% | 26,034 psi | 76% | 1145 fps | 87.6% |
| Hodgdon Longshot*² | <<locked>> | 64% | 22,437 psi | 66% | 1086 fps | 87.3% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 5,004 psi | 15% | 541 fps | 89.2% |
| Hodgdon Universal² | <<locked>> | 60% | 15,171 psi | 45% | 915 fps | 96.3% |
| Lovex S011² | <<locked>> | 60% | 19,986 psi | 59% | 981 fps | 99.4% |
| Lovex S020*² | <<locked>> | 60% | 14,170 psi | 42% | 896 fps | 90.6% |
| Maxam CSB 1*² | <<locked>> | 60% | 12,531 psi | 37% | 833 fps | 92.9% |
| Maxam CSB 2² | 3.4 gr | 60% | 11,473 psi | 34% | 846 fps | 96.9% |
| Maxam CSB 3² | <<locked>> | 60% | 14,692 psi | 43% | 883 fps | 98.5% |
| Maxam CSB 4² | <<locked>> | 60% | 15,751 psi | 46% | 899 fps | 99.9% |
| Maxam CSB 5² | <<locked>> | 60% | 18,347 psi | 54% | 922 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 17,738 psi | 52% | 984 fps | 88.9% |
| Ramshot True Blue*² | <<locked>> | 60% | 20,624 psi | 61% | 1043 fps | 85.8% |
| Ramshot Zip² | <<locked>> | 60% | 25,991 psi | 76% | 1102 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 16,128 psi | 47% | 958 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 72% | 5,714 psi | 17% | 587 fps | 86% |
| ReloadSwiss RS 20*² | 4 gr | 64% | 12,285 psi | 36% | 866 fps | 87.1% |
| Rottweil P 801² | <<locked>> | 60% | 19,696 psi | 58% | 994 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 64% | 14,257 psi | 42% | 873 fps | 87.6% |
| SNPE Vectan A1² | <<locked>> | 60% | 15,795 psi | 46% | 906 fps | 97.5% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 15,127 psi | 44% | 889 fps | 93.4% |
| SNPE Vectan BA10² | <<locked>> | 60% | 21,074 psi | 62% | 922 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 88% | 21,828 psi | 64% | 1056 fps | 85.9% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 14,953 psi | 44% | 899 fps | 95.1% |
| SNPE Vectan SP 2* | <<locked>> | 88% | 27,456 psi | 81% | 1240 fps | 85.1% |
| Somchem MP200*² | <<locked>> | 60% | 15,098 psi | 44% | 915 fps | 87.1% |
| Somchem MS200*² | <<locked>> | 60% | 13,953 psi | 41% | 876 fps | 88.8% |
| Vihtavuori 3N37* | <<locked>> | 80% | 19,885 psi | 58% | 1050 fps | 85.6% |
| Vihtavuori N310² | <<locked>> | 60% | 24,642 psi | 72% | 991 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 15,708 psi | 46% | 919 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 7,818 psi | 23% | 679 fps | 99.5% |
| Vihtavuori N330² | <<locked>> | 60% | 13,721 psi | 40% | 906 fps | 95.9% |
| Vihtavuori N340*² | <<locked>> | 60% | 12,763 psi | 37% | 853 fps | 86.1% |
| Vihtavuori N350* | <<locked>> | 84% | 19,218 psi | 56% | 1030 fps | 85.3% |
| Winchester 231² | <<locked>> | 60% | 20,987 psi | 62% | 1017 fps | 99.5% |
| Winchester 572*² | <<locked>> | 60% | 24,540 psi | 72% | 1129 fps | 88% |
| Winchester AutoComp *² | <<locked>> | 60% | 12,589 psi | 37% | 846 fps | 91.4% |
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 32 powders for 9 mm Para loaded with the .355 | 115gr | Speer JHP. ReloadSwiss RS 20 delivers the highest muzzle velocity at 1,230 fps; across all powders the maximum-charge window runs from 732 fps to 1,230 fps. Alliant Herco gives the best case fill at 100 %, and 32 of the 32 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (235 MPa), the top charges use 27–90 %, 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. ReloadSwiss RS 20, Alliant UNIQUE, Maxam CSB 2 rank at the top here: for 9 mm Para with the .355 | 115gr | Speer JHP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ReloadSwiss RS 14, Vihtavuori N350 burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1000, Accurate Solo 1250, ADI AS 30 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.