Load Specifications
Load data in caliber 9 mm Para with .355 | 125gr | Sierra Sig V-Crown bullet and 58 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 Somchem MP200.
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% | 28,108 psi | 82% | 1043 fps | 95% |
| Accurate Solo 1000 | <<locked>> | 84% | 28,776 psi | 84% | 1010 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 92% | 28,529 psi | 84% | 1056 fps | 100% |
| ADI AP 70N | <<locked>> | 80% | 29,979 psi | 88% | 1096 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 29,689 psi | 87% | 922 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 28,398 psi | 83% | 942 fps | 100% |
| ADI AS 30 | <<locked>> | 88% | 30,313 psi | 89% | 1010 fps | 100% |
| ADI AS 50N | <<locked>> | 84% | 29,907 psi | 88% | 1043 fps | 100% |
| Alliant BE-86 | <<locked>> | 92% | 29,820 psi | 87% | 1073 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 84% | 30,385 psi | 89% | 1122 fps | 98.9% |
| Alliant Green Dot | <<locked>> | 88% | 29,443 psi | 86% | 1040 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 22,713 psi | 67% | 1014 fps | 95.5% |
| Alliant RED DOT | <<locked>> | 92% | 30,327 psi | 89% | 1030 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 29,341 psi | 86% | 1106 fps | 98.1% |
| Alliant UNIQUE | <<locked>> | 96% | 29,283 psi | 86% | 1119 fps | 98.2% |
| Baschieri & Pellagri 100 | <<locked>> | 88% | 29,733 psi | 87% | 1030 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 23,032 psi | 68% | 974 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 29,138 psi | 85% | 1053 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 28,979 psi | 85% | 1079 fps | 99.9% |
| Hodgdon Clays | <<locked>> | 92% | 29,805 psi | 87% | 955 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 28,732 psi | 84% | 1047 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 76% | 27,847 psi | 82% | 1086 fps | 88.5% |
| Hodgdon Longshot*² | <<locked>> | 72% | 27,383 psi | 80% | 1083 fps | 90.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 9,776 psi | 29% | 686 fps | 98.7% |
| Hodgdon Universal | <<locked>> | 88% | 29,979 psi | 88% | 1096 fps | 100% |
| Lovex S011² | <<locked>> | 76% | 30,603 psi | 90% | 1050 fps | 100% |
| Lovex S020 | <<locked>> | 84% | 26,832 psi | 79% | 1056 fps | 98.7% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 30,705 psi | 90% | 1079 fps | 100% |
| Maxam CSB 2 | <<locked>> | 96% | 27,920 psi | 82% | 1079 fps | 100% |
| Maxam CSB 3 | <<locked>> | 92% | 29,936 psi | 88% | 1056 fps | 100% |
| Maxam CSB 4 | <<locked>> | 88% | 30,792 psi | 90% | 1050 fps | 100% |
| Maxam CSB 5 | <<locked>> | 80% | 29,312 psi | 86% | 994 fps | 100% |
| Ramshot Silhouette | <<locked>> | 80% | 30,443 psi | 89% | 1122 fps | 96.8% |
| Ramshot True Blue*² | <<locked>> | 72% | 28,152 psi | 83% | 1089 fps | 91% |
| Ramshot Zip² | <<locked>> | 64% | 27,572 psi | 81% | 1037 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 84% | 29,820 psi | 87% | 1089 fps | 100% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 8,441 psi | 25% | 659 fps | 93.4% |
| ReloadSwiss RS 20ᴾ | <<locked>> | 100% | 29,617 psi | 87% | 1135 fps | 99.5% |
| Rottweil P 801² | <<locked>> | 76% | 28,195 psi | 83% | 1037 fps | 100% |
| SNPE Vectan A0 | <<locked>> | 96% | 29,051 psi | 85% | 1066 fps | 97.8% |
| SNPE Vectan A1 | <<locked>> | 88% | 30,835 psi | 90% | 1066 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 88% | 29,646 psi | 87% | 1060 fps | 99.8% |
| SNPE Vectan BA10² | <<locked>> | 76% | 29,907 psi | 88% | 958 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 26,701 psi | 78% | 1056 fps | 89.2% |
| SNPE Vectan BA9 1/2 | <<locked>> | 88% | 28,282 psi | 83% | 1060 fps | 100% |
| Somchem MP200 | <<locked>> | 88% | 29,414 psi | 86% | 1102 fps | 97.2% |
| Somchem MS200 | <<locked>> | 92% | 29,965 psi | 88% | 1096 fps | 98.9% |
| Vihtavuori 3N37* | <<locked>> | 96% | 28,790 psi | 84% | 1115 fps | 91.9% |
| Vihtavuori N310² | <<locked>> | 68% | 30,226 psi | 89% | 974 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 28,645 psi | 84% | 1040 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 17,492 psi | 51% | 846 fps | 100% |
| Vihtavuori N330 | <<locked>> | 88% | 29,109 psi | 85% | 1096 fps | 100% |
| Vihtavuori N340 | <<locked>> | 92% | 28,631 psi | 84% | 1079 fps | 98% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 26,745 psi | 78% | 1083 fps | 91% |
| Winchester 231² | <<locked>> | 72% | 27,572 psi | 81% | 1037 fps | 100% |
| Winchester 244² | <<locked>> | 64% | 30,429 psi | 89% | 1063 fps | 100% |
| Winchester 572*² | <<locked>> | 64% | 26,092 psi | 77% | 1070 fps | 88.9% |
| Winchester AutoComp | <<locked>> | 96% | 30,066 psi | 88% | 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>> | 64% | 15,998 psi | 47% | 840 fps | 86.3% |
| Accurate Solo 1000² | <<locked>> | 60% | 15,389 psi | 45% | 807 fps | 99.8% |
| Accurate Solo 1250*² | <<locked>> | 60% | 12,401 psi | 36% | 774 fps | 92.7% |
| ADI AP 70N² | <<locked>> | 60% | 17,332 psi | 51% | 896 fps | 97.8% |
| ADI APS 350² | <<locked>> | 60% | 19,203 psi | 56% | 794 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 17,738 psi | 52% | 801 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 16,099 psi | 47% | 810 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 16,476 psi | 48% | 843 fps | 99.8% |
| Alliant BE-86² | <<locked>> | 60% | 12,140 psi | 36% | 774 fps | 95.2% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 16,447 psi | 48% | 879 fps | 91.3% |
| Alliant Green Dot² | <<locked>> | 60% | 15,316 psi | 45% | 820 fps | 99.5% |
| Alliant Herco*² | <<locked>> | 76% | 13,242 psi | 39% | 814 fps | 86.6% |
| Alliant RED DOT² | <<locked>> | 60% | 14,968 psi | 44% | 804 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 17,941 psi | 53% | 912 fps | 91.8% |
| Alliant UNIQUE*² | 3.3 gr | 64% | 13,460 psi | 39% | 820 fps | 86.8% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 14,402 psi | 42% | 797 fps | 98.4% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 60% | 8,224 psi | 24% | 663 fps | 93.7% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 13,793 psi | 40% | 817 fps | 98.7% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 22,046 psi | 65% | 981 fps | 98.6% |
| Hodgdon Clays² | <<locked>> | 60% | 14,721 psi | 43% | 748 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 24,845 psi | 73% | 994 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 72% | 24,656 psi | 72% | 1037 fps | 86.4% |
| Hodgdon Longshot*² | <<locked>> | 64% | 20,407 psi | 60% | 968 fps | 85.4% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 4,714 psi | 14% | 486 fps | 88.1% |
| Hodgdon Universal² | <<locked>> | 60% | 14,692 psi | 43% | 840 fps | 96% |
| Lovex S011² | <<locked>> | 60% | 18,797 psi | 55% | 886 fps | 98.9% |
| Lovex S020*² | <<locked>> | 60% | 13,169 psi | 39% | 807 fps | 89.5% |
| Maxam CSB 1*² | <<locked>> | 60% | 11,284 psi | 33% | 738 fps | 91.2% |
| Maxam CSB 2² | <<locked>> | 60% | 10,689 psi | 31% | 771 fps | 96.3% |
| Maxam CSB 3² | <<locked>> | 60% | 13,068 psi | 38% | 781 fps | 97.4% |
| Maxam CSB 4² | <<locked>> | 60% | 14,852 psi | 44% | 814 fps | 99.8% |
| Maxam CSB 5² | <<locked>> | 60% | 17,042 psi | 50% | 830 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 16,273 psi | 48% | 883 fps | 87.3% |
| Ramshot True Blue*² | <<locked>> | 64% | 21,959 psi | 64% | 988 fps | 86.8% |
| Ramshot Zip² | <<locked>> | 60% | 23,801 psi | 70% | 988 fps | 99.9% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 14,721 psi | 43% | 863 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 72% | 5,569 psi | 16% | 538 fps | 85.7% |
| ReloadSwiss RS 20*² | 3.4 gr | 64% | 11,632 psi | 34% | 784 fps | 86% |
| Rottweil P 801² | <<locked>> | 60% | 17,535 psi | 51% | 886 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 64% | 13,489 psi | 40% | 787 fps | 86.4% |
| SNPE Vectan A1² | <<locked>> | 60% | 15,011 psi | 44% | 820 fps | 96.9% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 14,330 psi | 42% | 804 fps | 92.5% |
| SNPE Vectan BA10² | <<locked>> | 60% | 20,160 psi | 59% | 837 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 92% | 22,640 psi | 66% | 991 fps | 86.3% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 60% | 13,851 psi | 41% | 807 fps | 94% |
| Somchem MP200*² | 3.5 gr | 60% | 13,822 psi | 41% | 817 fps | 85.4% |
| Somchem MS200*² | <<locked>> | 60% | 12,966 psi | 38% | 784 fps | 87.4% |
| Vihtavuori 3N37* | <<locked>> | 84% | 20,276 psi | 59% | 981 fps | 85.9% |
| Vihtavuori N310² | <<locked>> | 60% | 23,670 psi | 69% | 902 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 14,895 psi | 44% | 833 fps | 99.9% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 7,266 psi | 21% | 614 fps | 99.1% |
| Vihtavuori N330*² | <<locked>> | 60% | 12,647 psi | 37% | 814 fps | 94.9% |
| Vihtavuori N340*² | <<locked>> | 64% | 13,256 psi | 39% | 804 fps | 86.9% |
| Vihtavuori N350* | <<locked>> | 88% | 19,435 psi | 57% | 961 fps | 85.4% |
| Winchester 231² | <<locked>> | 60% | 19,406 psi | 57% | 915 fps | 99% |
| Winchester 244² | <<locked>> | 60% | 26,324 psi | 77% | 1014 fps | 100% |
| Winchester 572*² | <<locked>> | 60% | 22,887 psi | 67% | 1017 fps | 86.6% |
| Winchester AutoComp *² | <<locked>> | 60% | 11,879 psi | 35% | 768 fps | 90.5% |
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 58 powders for 9 mm Para loaded with the .355 | 125gr | Sierra Sig V-Crown. ReloadSwiss RS 20 delivers the highest muzzle velocity at 1,135 fps; across all powders the maximum-charge window runs from 659 fps to 1,135 fps. Alliant Herco gives the best case fill at 100 %, and 44 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 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, ReloadSwiss RS 20, Somchem MP200 rank at the top here: for 9 mm Para with the .355 | 125gr | Sierra Sig V-Crown 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.