Load Specifications
Load data in caliber 9 mm Para with .355 | 124gr | X-TREME RN bullet and 56 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.
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Max Load - Barrel Length: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2 | <<locked>> | 84% | 30,385 psi | 89% | 1079 fps | 96.2% |
| Accurate Solo 1000 | <<locked>> | 80% | 28,355 psi | 83% | 1010 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 88% | 28,282 psi | 83% | 1060 fps | 100% |
| ADI AP 70N² | <<locked>> | 76% | 30,530 psi | 90% | 1099 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 29,095 psi | 85% | 922 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 30,734 psi | 90% | 971 fps | 100% |
| ADI AS 30 | <<locked>> | 84% | 30,458 psi | 89% | 1010 fps | 100% |
| ADI AS 50N | <<locked>> | 80% | 30,182 psi | 89% | 1047 fps | 100% |
| Alliant BE-86 | <<locked>> | 88% | 29,689 psi | 87% | 1073 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 80% | 29,950 psi | 88% | 1122 fps | 98.9% |
| Alliant Green Dot | <<locked>> | 84% | 29,689 psi | 87% | 1043 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 25,338 psi | 74% | 1056 fps | 96.9% |
| Alliant RED DOT | <<locked>> | 84% | 29,211 psi | 86% | 1017 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 72% | 27,673 psi | 81% | 1089 fps | 97.8% |
| Alliant UNIQUE | <<locked>> | 92% | 30,719 psi | 90% | 1142 fps | 98.7% |
| Baschieri & Pellagri 100 | <<locked>> | 84% | 29,515 psi | 87% | 1030 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 25,512 psi | 75% | 1007 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 80% | 28,950 psi | 85% | 1053 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 64% | 27,920 psi | 82% | 1066 fps | 99.9% |
| Hodgdon Clays | <<locked>> | 88% | 29,240 psi | 86% | 955 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 76% | 30,792 psi | 90% | 1132 fps | 90.5% |
| Hodgdon Longshot*² | <<locked>> | 72% | 29,341 psi | 86% | 1115 fps | 91.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 11,937 psi | 35% | 725 fps | 99.9% |
| Hodgdon Universal | <<locked>> | 84% | 30,530 psi | 90% | 1099 fps | 100% |
| Lovex S011² | <<locked>> | 72% | 29,921 psi | 88% | 1050 fps | 100% |
| Lovex S020 | <<locked>> | 80% | 27,050 psi | 79% | 1060 fps | 98.9% |
| Maxam CSB 1 | <<locked>> | 96% | 30,385 psi | 89% | 1079 fps | 100% |
| Maxam CSB 2 | <<locked>> | 92% | 29,907 psi | 88% | 1099 fps | 100% |
| Maxam CSB 3 | <<locked>> | 88% | 29,660 psi | 87% | 1056 fps | 100% |
| Maxam CSB 4 | <<locked>> | 84% | 30,487 psi | 89% | 1050 fps | 100% |
| Maxam CSB 5 | <<locked>> | 80% | 30,690 psi | 90% | 1010 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 76% | 30,095 psi | 88% | 1122 fps | 96.9% |
| Ramshot True Blue*² | <<locked>> | 68% | 27,789 psi | 82% | 1089 fps | 91.1% |
| Ramshot Zip² | <<locked>> | 64% | 30,037 psi | 88% | 1070 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 30,792 psi | 90% | 1096 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 11,313 psi | 33% | 722 fps | 97.5% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 30,487 psi | 89% | 1152 fps | 99.7% |
| Rottweil P 801² | <<locked>> | 72% | 29,051 psi | 85% | 1040 fps | 100% |
| SNPE Vectan A0 | <<locked>> | 92% | 28,601 psi | 84% | 1066 fps | 97.8% |
| SNPE Vectan A1 | <<locked>> | 80% | 27,862 psi | 82% | 1037 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 84% | 30,327 psi | 89% | 1076 fps | 99.9% |
| SNPE Vectan BA10² | <<locked>> | 72% | 29,240 psi | 86% | 955 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 29,544 psi | 87% | 1102 fps | 91.1% |
| SNPE Vectan BA9 1/2 | <<locked>> | 84% | 28,369 psi | 83% | 1063 fps | 100% |
| Somchem MP200 | <<locked>> | 84% | 30,560 psi | 90% | 1122 fps | 97.7% |
| Somchem MS200 | <<locked>> | 88% | 29,776 psi | 87% | 1096 fps | 99% |
| Vihtavuori 3N37* | <<locked>> | 92% | 28,398 psi | 83% | 1115 fps | 92% |
| Vihtavuori N310² | <<locked>> | 64% | 30,255 psi | 89% | 974 fps | 100% |
| Vihtavuori N320 | <<locked>> | 80% | 28,689 psi | 84% | 1040 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 20,639 psi | 61% | 883 fps | 100% |
| Vihtavuori N330 | <<locked>> | 84% | 29,109 psi | 85% | 1096 fps | 100% |
| Vihtavuori N340 | <<locked>> | 88% | 29,689 psi | 87% | 1099 fps | 98.5% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 29,907 psi | 88% | 1132 fps | 93% |
| Winchester 231² | <<locked>> | 72% | 30,037 psi | 88% | 1070 fps | 100% |
| Winchester 572*² | <<locked>> | 64% | 29,385 psi | 86% | 1122 fps | 91.2% |
| Winchester AutoComp | <<locked>> | 92% | 29,965 psi | 88% | 1093 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% | 15,606 psi | 46% | 830 fps | 86.2% |
| Accurate Solo 1000² | <<locked>> | 60% | 17,898 psi | 53% | 850 fps | 100% |
| Accurate Solo 1250*² | <<locked>> | 60% | 14,185 psi | 42% | 807 fps | 94.9% |
| ADI AP 70N² | <<locked>> | 60% | 20,523 psi | 60% | 948 fps | 99.2% |
| ADI APS 350² | <<locked>> | 60% | 20,653 psi | 61% | 814 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 19,087 psi | 56% | 820 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 18,130 psi | 53% | 837 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 18,507 psi | 54% | 873 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 14,750 psi | 43% | 827 fps | 97.7% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 17,956 psi | 53% | 912 fps | 93% |
| Alliant Green Dot² | <<locked>> | 60% | 17,318 psi | 51% | 853 fps | 100% |
| Alliant Herco*² | <<locked>> | 64% | 12,357 psi | 36% | 774 fps | 85.5% |
| Alliant RED DOT² | <<locked>> | 60% | 17,143 psi | 50% | 833 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 20,247 psi | 59% | 958 fps | 93.9% |
| Alliant UNIQUE*² | 3.2 gr | 60% | 14,127 psi | 41% | 823 fps | 87.9% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 16,201 psi | 48% | 827 fps | 99.3% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 10,124 psi | 30% | 709 fps | 96.9% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 16,839 psi | 49% | 873 fps | 99.9% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 24,700 psi | 72% | 1020 fps | 99.4% |
| Hodgdon Clays² | <<locked>> | 60% | 16,215 psi | 48% | 771 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 68% | 23,772 psi | 70% | 1027 fps | 86.1% |
| Hodgdon Longshot*² | <<locked>> | 60% | 20,073 psi | 59% | 961 fps | 85.4% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 6,730 psi | 20% | 541 fps | 94.9% |
| Hodgdon Universal² | <<locked>> | 60% | 16,955 psi | 50% | 876 fps | 97.7% |
| Lovex S011² | <<locked>> | 60% | 21,205 psi | 62% | 925 fps | 99.7% |
| Lovex S020*² | <<locked>> | 60% | 15,911 psi | 47% | 863 fps | 92.8% |
| Maxam CSB 1*² | <<locked>> | 60% | 13,793 psi | 40% | 794 fps | 94.6% |
| Maxam CSB 2² | <<locked>> | 60% | 13,155 psi | 39% | 817 fps | 98.5% |
| Maxam CSB 3² | <<locked>> | 60% | 15,722 psi | 46% | 833 fps | 99.1% |
| Maxam CSB 4² | <<locked>> | 60% | 16,592 psi | 49% | 843 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 18,898 psi | 55% | 853 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 19,334 psi | 57% | 942 fps | 90.6% |
| Ramshot True Blue*² | <<locked>> | 60% | 21,393 psi | 63% | 981 fps | 86.6% |
| Ramshot Zip² | <<locked>> | 60% | 26,397 psi | 77% | 1024 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 18,260 psi | 54% | 915 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 60% | 6,454 psi | 19% | 531 fps | 89.4% |
| ReloadSwiss RS 20*² | 3.4 gr | 60% | 12,618 psi | 37% | 804 fps | 88% |
| Rottweil P 801² | <<locked>> | 60% | 21,045 psi | 62% | 932 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 60% | 13,547 psi | 40% | 781 fps | 86.8% |
| SNPE Vectan A1² | <<locked>> | 60% | 17,202 psi | 50% | 863 fps | 98.4% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 16,520 psi | 48% | 850 fps | 94.9% |
| SNPE Vectan BA10² | <<locked>> | 60% | 21,408 psi | 63% | 856 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 88% | 22,843 psi | 67% | 997 fps | 86.8% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 15,664 psi | 46% | 840 fps | 95.9% |
| Somchem MP200*² | <<locked>> | 60% | 16,331 psi | 48% | 869 fps | 88.8% |
| Somchem MS200*² | <<locked>> | 60% | 15,432 psi | 45% | 837 fps | 90.8% |
| Vihtavuori 3N37*² | <<locked>> | 76% | 19,116 psi | 56% | 955 fps | 85.1% |
| Vihtavuori N310² | <<locked>> | 60% | 25,614 psi | 75% | 925 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 16,926 psi | 50% | 866 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 9,544 psi | 28% | 659 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 15,287 psi | 45% | 869 fps | 97.5% |
| Vihtavuori N340*² | 3.4 gr | 60% | 14,315 psi | 42% | 820 fps | 88.6% |
| Vihtavuori N350* | <<locked>> | 84% | 19,798 psi | 58% | 968 fps | 86.1% |
| Winchester 231² | <<locked>> | 60% | 21,973 psi | 64% | 958 fps | 99.7% |
| Winchester 572*² | <<locked>> | 60% | 26,092 psi | 77% | 1070 fps | 89.1% |
| Winchester AutoComp *² | <<locked>> | 60% | 13,808 psi | 41% | 804 fps | 93.2% |
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 56 powders for 9 mm Para loaded with the .355 | 124gr | X-TREME RN. ReloadSwiss RS 20 delivers the highest muzzle velocity at 1,152 fps; across all powders the maximum-charge window runs from 722 fps to 1,152 fps. Alliant Herco gives the best case fill at 100 %, and 41 of the 56 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (235 MPa), the top charges use 33–90 %, 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 | 124gr | X-TREME RN 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.