Load Specifications
Load data in caliber 9 mm Para with .355 | 125gr | Speer Hollow Point Gold Dot 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 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.
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>> | 84% | 29,399 psi | 86% | 1076 fps | 96.2% |
| Accurate Solo 1000 | <<locked>> | 84% | 30,458 psi | 89% | 1043 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 92% | 29,878 psi | 88% | 1089 fps | 100% |
| ADI AP 70N² | <<locked>> | 76% | 28,718 psi | 84% | 1093 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 28,921 psi | 85% | 928 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 30,356 psi | 89% | 974 fps | 100% |
| ADI AS 30 | <<locked>> | 84% | 29,312 psi | 86% | 1010 fps | 100% |
| ADI AS 50N | <<locked>> | 80% | 28,834 psi | 85% | 1043 fps | 100% |
| Alliant BE-86 | <<locked>> | 92% | 30,748 psi | 90% | 1096 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 80% | 29,051 psi | 85% | 1119 fps | 98.9% |
| Alliant Green Dot | <<locked>> | 84% | 28,384 psi | 83% | 1040 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 23,453 psi | 69% | 1040 fps | 96.4% |
| Alliant RED DOT | <<locked>> | 88% | 29,486 psi | 87% | 1030 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 30,516 psi | 90% | 1138 fps | 98.8% |
| Alliant UNIQUE | <<locked>> | 92% | 27,876 psi | 82% | 1115 fps | 98.2% |
| Baschieri & Pellagri 100 | <<locked>> | 84% | 28,442 psi | 83% | 1030 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 24,018 psi | 70% | 1001 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 30,690 psi | 90% | 1083 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 29,950 psi | 88% | 1106 fps | 100% |
| Hodgdon Clays | <<locked>> | 92% | 30,139 psi | 88% | 974 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 30,066 psi | 88% | 1076 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 76% | 29,196 psi | 86% | 1122 fps | 90.1% |
| Hodgdon Longshot*² | <<locked>> | 72% | 28,935 psi | 85% | 1122 fps | 92.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 10,370 psi | 30% | 709 fps | 99.4% |
| Hodgdon Universal | <<locked>> | 84% | 28,718 psi | 84% | 1093 fps | 100% |
| Lovex S011² | <<locked>> | 72% | 29,196 psi | 86% | 1050 fps | 100% |
| Lovex S020 | <<locked>> | 84% | 29,457 psi | 86% | 1106 fps | 99.5% |
| Maxam CSB 1 | <<locked>> | 96% | 29,211 psi | 86% | 1076 fps | 100% |
| Maxam CSB 2 | <<locked>> | 92% | 28,123 psi | 83% | 1093 fps | 100% |
| Maxam CSB 3 | <<locked>> | 88% | 28,660 psi | 84% | 1056 fps | 100% |
| Maxam CSB 4 | <<locked>> | 84% | 28,195 psi | 83% | 1033 fps | 100% |
| Maxam CSB 5 | <<locked>> | 80% | 29,950 psi | 88% | 1010 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 76% | 28,660 psi | 84% | 1112 fps | 96.6% |
| Ramshot True Blue*² | <<locked>> | 72% | 29,689 psi | 87% | 1125 fps | 92.6% |
| Ramshot Zip² | <<locked>> | 64% | 28,863 psi | 85% | 1070 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 28,718 psi | 84% | 1086 fps | 100% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 8,978 psi | 26% | 686 fps | 94.9% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 29,124 psi | 85% | 1145 fps | 99.7% |
| Rottweil P 801² | <<locked>> | 76% | 29,878 psi | 88% | 1066 fps | 100% |
| SNPE Vectan A0 | <<locked>> | 96% | 29,936 psi | 88% | 1096 fps | 98.4% |
| SNPE Vectan A1 | <<locked>> | 84% | 30,429 psi | 89% | 1076 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 84% | 29,370 psi | 86% | 1073 fps | 99.9% |
| SNPE Vectan BA10² | <<locked>> | 76% | 30,342 psi | 89% | 974 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 28,021 psi | 82% | 1093 fps | 90.8% |
| SNPE Vectan BA9 1/2 | <<locked>> | 88% | 29,559 psi | 87% | 1089 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 92% | 30,255 psi | 89% | 1207 fps | 87.5% |
| Somchem MP200 | <<locked>> | 84% | 29,008 psi | 85% | 1112 fps | 97.5% |
| Somchem MS200 | <<locked>> | 88% | 28,485 psi | 84% | 1093 fps | 98.9% |
| Vihtavuori 3N37* | <<locked>> | 96% | 30,400 psi | 89% | 1155 fps | 93.4% |
| Vihtavuori N310² | <<locked>> | 64% | 27,775 psi | 81% | 961 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 30,429 psi | 89% | 1073 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 18,956 psi | 56% | 876 fps | 100% |
| Vihtavuori N330 | <<locked>> | 88% | 30,530 psi | 90% | 1122 fps | 100% |
| Vihtavuori N340 | <<locked>> | 88% | 27,079 psi | 79% | 1076 fps | 98% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 28,427 psi | 83% | 1122 fps | 92.7% |
| Winchester 231² | <<locked>> | 72% | 28,863 psi | 85% | 1070 fps | 100% |
| Winchester 572*² | <<locked>> | 64% | 28,007 psi | 82% | 1112 fps | 90.8% |
| Winchester AutoComp | <<locked>> | 92% | 28,355 psi | 83% | 1083 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% | 14,634 psi | 43% | 823 fps | 85.5% |
| Accurate Solo 1000² | <<locked>> | 60% | 16,186 psi | 47% | 833 fps | 100% |
| Accurate Solo 1250*² | <<locked>> | 60% | 13,010 psi | 38% | 801 fps | 94% |
| ADI AP 70N² | <<locked>> | 60% | 17,898 psi | 53% | 919 fps | 98.5% |
| ADI APS 350² | <<locked>> | 60% | 19,072 psi | 56% | 804 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 18,666 psi | 55% | 827 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 16,012 psi | 47% | 817 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 17,231 psi | 51% | 869 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 12,618 psi | 37% | 797 fps | 96.2% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 17,027 psi | 50% | 906 fps | 92.5% |
| Alliant Green Dot² | <<locked>> | 60% | 15,214 psi | 45% | 827 fps | 99.7% |
| Alliant Herco*² | <<locked>> | 72% | 12,357 psi | 36% | 801 fps | 85.9% |
| Alliant RED DOT² | <<locked>> | 60% | 14,997 psi | 44% | 814 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 19,305 psi | 57% | 955 fps | 93.5% |
| Alliant UNIQUE*² | 3.3 gr | 60% | 12,560 psi | 37% | 807 fps | 86.1% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 15,098 psi | 44% | 823 fps | 99% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 8,659 psi | 25% | 686 fps | 95% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 14,649 psi | 43% | 843 fps | 99.4% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 23,163 psi | 68% | 1010 fps | 99.2% |
| Hodgdon Clays² | <<locked>> | 60% | 14,649 psi | 43% | 755 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 26,266 psi | 77% | 1030 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 68% | 22,278 psi | 65% | 1014 fps | 85.4% |
| Hodgdon Longshot*² | <<locked>> | 64% | 21,973 psi | 64% | 1010 fps | 87.6% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 4,888 psi | 14% | 502 fps | 89.4% |
| Hodgdon Universal² | <<locked>> | 60% | 15,316 psi | 45% | 863 fps | 96.9% |
| Lovex S011² | <<locked>> | 60% | 20,479 psi | 60% | 928 fps | 99.6% |
| Lovex S020*² | <<locked>> | 60% | 14,489 psi | 43% | 850 fps | 91.8% |
| Maxam CSB 1*² | <<locked>> | 60% | 11,893 psi | 35% | 764 fps | 92.7% |
| Maxam CSB 2² | <<locked>> | 60% | 11,443 psi | 34% | 797 fps | 97.4% |
| Maxam CSB 3² | <<locked>> | 60% | 13,793 psi | 40% | 807 fps | 98.3% |
| Maxam CSB 4² | <<locked>> | 60% | 15,650 psi | 46% | 840 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 18,057 psi | 53% | 856 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 17,245 psi | 51% | 915 fps | 89.1% |
| Ramshot True Blue*² | <<locked>> | 60% | 19,972 psi | 59% | 968 fps | 85.8% |
| Ramshot Zip² | <<locked>> | 60% | 25,179 psi | 74% | 1020 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 15,490 psi | 45% | 886 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 68% | 5,395 psi | 16% | 535 fps | 85.7% |
| ReloadSwiss RS 20*² | 3.4 gr | 60% | 10,820 psi | 32% | 771 fps | 85.1% |
| Rottweil P 801² | <<locked>> | 60% | 19,232 psi | 56% | 925 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 60% | 12,531 psi | 37% | 771 fps | 85.7% |
| SNPE Vectan A1² | <<locked>> | 60% | 15,403 psi | 45% | 840 fps | 97.6% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 14,765 psi | 43% | 823 fps | 93.6% |
| SNPE Vectan BA10² | <<locked>> | 60% | 20,987 psi | 62% | 860 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 88% | 21,364 psi | 63% | 984 fps | 86.1% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 14,388 psi | 42% | 830 fps | 95.1% |
| SNPE Vectan SP 2* | <<locked>> | 88% | 26,861 psi | 79% | 1158 fps | 85.4% |
| Somchem MP200*² | <<locked>> | 60% | 14,939 psi | 44% | 856 fps | 87.6% |
| Somchem MS200*² | <<locked>> | 60% | 13,474 psi | 40% | 810 fps | 88.8% |
| Vihtavuori 3N37* | <<locked>> | 80% | 19,189 psi | 56% | 971 fps | 85.7% |
| Vihtavuori N310² | <<locked>> | 60% | 24,743 psi | 73% | 925 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 15,751 psi | 46% | 860 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 7,426 psi | 22% | 623 fps | 99.4% |
| Vihtavuori N330² | <<locked>> | 60% | 13,227 psi | 39% | 837 fps | 96% |
| Vihtavuori N340*² | 3.4 gr | 60% | 12,328 psi | 36% | 787 fps | 86.2% |
| Vihtavuori N350* | <<locked>> | 84% | 18,463 psi | 54% | 955 fps | 85.2% |
| Winchester 231² | <<locked>> | 60% | 20,842 psi | 61% | 951 fps | 99.6% |
| Winchester 572*² | <<locked>> | 60% | 24,758 psi | 73% | 1063 fps | 88.8% |
| Winchester AutoComp *² | <<locked>> | 60% | 12,285 psi | 36% | 787 fps | 91.6% |
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 | 125gr | Speer Hollow Point Gold Dot. SNPE Vectan SP 2 delivers the highest muzzle velocity at 1,207 fps; across all powders the maximum-charge window runs from 686 fps to 1,207 fps. Alliant Herco gives the best case fill at 100 %, and 42 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 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. ReloadSwiss RS 20, Alliant UNIQUE, Vihtavuori N340 rank at the top here: for 9 mm Para with the .355 | 125gr | Speer Hollow Point Gold Dot 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.