Load Specifications
Load data in caliber 9 mm Para with .356 | 125gr | X-TREME RN 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 Somchem MS200.
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% | 30,806 psi | 90% | 1079 fps | 96.5% |
| Accurate Solo 1000 | <<locked>> | 80% | 28,703 psi | 84% | 1007 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 88% | 28,645 psi | 84% | 1056 fps | 100% |
| ADI AP 70N² | <<locked>> | 72% | 28,369 psi | 83% | 1066 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 29,457 psi | 86% | 919 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 28,137 psi | 83% | 938 fps | 100% |
| ADI AS 30 | <<locked>> | 84% | 30,806 psi | 90% | 1007 fps | 100% |
| ADI AS 50N | <<locked>> | 80% | 30,487 psi | 89% | 1043 fps | 100% |
| Alliant BE-86 | <<locked>> | 88% | 28,805 psi | 85% | 1056 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 80% | 30,284 psi | 89% | 1119 fps | 99% |
| Alliant Green Dot | <<locked>> | 84% | 30,066 psi | 88% | 1043 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 25,599 psi | 75% | 1053 fps | 97.1% |
| Alliant RED DOT | <<locked>> | 84% | 29,559 psi | 87% | 1014 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 72% | 28,050 psi | 82% | 1089 fps | 97.9% |
| Alliant UNIQUE | <<locked>> | 92% | 29,921 psi | 88% | 1122 fps | 98.6% |
| Baschieri & Pellagri 100 | <<locked>> | 84% | 29,878 psi | 88% | 1030 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 25,904 psi | 76% | 1007 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 80% | 29,385 psi | 86% | 1050 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 64% | 28,268 psi | 83% | 1066 fps | 99.9% |
| Hodgdon Clays | <<locked>> | 88% | 29,501 psi | 87% | 951 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 30,240 psi | 89% | 1060 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 76% | 30,153 psi | 88% | 1119 fps | 90.3% |
| Hodgdon Longshot*² | <<locked>> | 72% | 29,762 psi | 87% | 1115 fps | 92.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 12,053 psi | 35% | 722 fps | 99.9% |
| Hodgdon Universal | <<locked>> | 80% | 28,369 psi | 83% | 1066 fps | 100% |
| Lovex S011² | <<locked>> | 72% | 30,255 psi | 89% | 1047 fps | 100% |
| Lovex S020 | <<locked>> | 80% | 27,311 psi | 80% | 1060 fps | 99% |
| Maxam CSB 1 | <<locked>> | 96% | 30,763 psi | 90% | 1079 fps | 100% |
| Maxam CSB 2 | <<locked>> | 92% | 29,080 psi | 85% | 1083 fps | 100% |
| Maxam CSB 3 | <<locked>> | 88% | 30,081 psi | 88% | 1056 fps | 100% |
| Maxam CSB 4 | <<locked>> | 84% | 29,385 psi | 86% | 1030 fps | 100% |
| Maxam CSB 5² | <<locked>> | 76% | 28,065 psi | 82% | 974 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 76% | 30,487 psi | 89% | 1122 fps | 97.1% |
| Ramshot True Blue*² | <<locked>> | 68% | 27,253 psi | 80% | 1073 fps | 90.9% |
| Ramshot Zip² | <<locked>> | 64% | 30,400 psi | 89% | 1070 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 29,733 psi | 87% | 1079 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 11,400 psi | 33% | 722 fps | 97.6% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 29,617 psi | 87% | 1135 fps | 99.6% |
| Rottweil P 801² | <<locked>> | 72% | 29,486 psi | 87% | 1040 fps | 100% |
| Rottweil P 806*ᴾ | <<locked>> | 100% | 24,366 psi | 71% | 1135 fps | 87.5% |
| SNPE Vectan A0 | <<locked>> | 92% | 28,950 psi | 85% | 1066 fps | 98% |
| SNPE Vectan A1 | <<locked>> | 84% | 30,618 psi | 90% | 1063 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 84% | 29,443 psi | 86% | 1060 fps | 99.9% |
| SNPE Vectan BA10² | <<locked>> | 72% | 28,123 psi | 83% | 935 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 29,965 psi | 88% | 1099 fps | 91.4% |
| SNPE Vectan BA9 1/2 | <<locked>> | 84% | 28,718 psi | 84% | 1063 fps | 100% |
| Somchem MP200 | <<locked>> | 84% | 29,704 psi | 87% | 1102 fps | 97.5% |
| Somchem MS200 | <<locked>> | 88% | 30,168 psi | 89% | 1096 fps | 99.1% |
| Vihtavuori 3N37* | <<locked>> | 92% | 28,848 psi | 85% | 1115 fps | 92.3% |
| Vihtavuori N310² | <<locked>> | 64% | 28,950 psi | 85% | 958 fps | 100% |
| Vihtavuori N320 | <<locked>> | 80% | 29,066 psi | 85% | 1040 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 20,842 psi | 61% | 883 fps | 100% |
| Vihtavuori N330 | <<locked>> | 84% | 29,530 psi | 87% | 1096 fps | 100% |
| Vihtavuori N340 | <<locked>> | 88% | 28,834 psi | 85% | 1083 fps | 98.3% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 30,400 psi | 89% | 1132 fps | 93.4% |
| Winchester 231² | <<locked>> | 72% | 30,400 psi | 89% | 1070 fps | 100% |
| Winchester 572*² | <<locked>> | 64% | 29,791 psi | 87% | 1122 fps | 91.5% |
| Winchester AutoComp | <<locked>> | 92% | 30,414 psi | 89% | 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% | 15,737 psi | 46% | 830 fps | 86.5% |
| Accurate Solo 1000² | <<locked>> | 60% | 18,014 psi | 53% | 850 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 14,344 psi | 42% | 807 fps | 95.1% |
| ADI AP 70N² | <<locked>> | 60% | 19,798 psi | 58% | 928 fps | 99% |
| ADI APS 350² | <<locked>> | 60% | 20,827 psi | 61% | 814 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 19,261 psi | 57% | 820 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 18,275 psi | 54% | 833 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 18,637 psi | 55% | 869 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 14,170 psi | 42% | 810 fps | 97.4% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 18,072 psi | 53% | 909 fps | 93.2% |
| Alliant Green Dot² | <<locked>> | 60% | 17,477 psi | 51% | 850 fps | 100% |
| Alliant Herco*² | <<locked>> | 68% | 13,039 psi | 38% | 791 fps | 86.7% |
| Alliant RED DOT² | <<locked>> | 60% | 17,289 psi | 51% | 833 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 20,479 psi | 60% | 958 fps | 94.2% |
| Alliant UNIQUE*² | 3.2 gr | 60% | 14,243 psi | 42% | 823 fps | 88.2% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 16,418 psi | 48% | 827 fps | 99.4% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 10,211 psi | 30% | 705 fps | 97% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 16,389 psi | 48% | 860 fps | 99.8% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 25,092 psi | 74% | 1020 fps | 99.5% |
| Hodgdon Clays² | <<locked>> | 60% | 16,375 psi | 48% | 768 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 27,673 psi | 81% | 1030 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 68% | 24,062 psi | 71% | 1027 fps | 86.4% |
| Hodgdon Longshot*² | <<locked>> | 60% | 20,320 psi | 60% | 961 fps | 85.8% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 6,773 psi | 20% | 541 fps | 95.1% |
| Hodgdon Universal² | <<locked>> | 60% | 17,085 psi | 50% | 873 fps | 97.8% |
| Lovex S011² | <<locked>> | 60% | 21,437 psi | 63% | 925 fps | 99.7% |
| Lovex S020*² | <<locked>> | 60% | 16,114 psi | 47% | 863 fps | 93.1% |
| Maxam CSB 1*² | <<locked>> | 60% | 13,909 psi | 41% | 794 fps | 94.8% |
| Maxam CSB 2² | <<locked>> | 60% | 13,271 psi | 39% | 817 fps | 98.7% |
| Maxam CSB 3² | <<locked>> | 60% | 15,882 psi | 47% | 833 fps | 99.2% |
| Maxam CSB 4² | <<locked>> | 60% | 16,752 psi | 49% | 840 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 19,116 psi | 56% | 853 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 18,710 psi | 55% | 925 fps | 90.1% |
| Ramshot True Blue*² | <<locked>> | 60% | 21,582 psi | 63% | 981 fps | 86.9% |
| Ramshot Zip² | <<locked>> | 60% | 26,716 psi | 78% | 1020 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 17,637 psi | 52% | 899 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 60% | 6,483 psi | 19% | 528 fps | 89.6% |
| ReloadSwiss RS 20*² | 3.3 gr | 60% | 12,183 psi | 36% | 787 fps | 87.4% |
| Rottweil P 801² | <<locked>> | 60% | 21,335 psi | 63% | 932 fps | 100% |
| Rottweil P 806* | <<locked>> | 96% | 21,901 psi | 64% | 1093 fps | 85.4% |
| SNPE Vectan A0*² | <<locked>> | 60% | 13,721 psi | 40% | 781 fps | 87.2% |
| SNPE Vectan A1² | <<locked>> | 60% | 17,405 psi | 51% | 860 fps | 98.5% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 16,636 psi | 49% | 846 fps | 95.1% |
| SNPE Vectan BA10² | <<locked>> | 60% | 21,596 psi | 63% | 853 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 88% | 23,047 psi | 68% | 994 fps | 87.1% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 15,795 psi | 46% | 840 fps | 96% |
| Somchem MP200*² | <<locked>> | 60% | 16,491 psi | 48% | 869 fps | 89.1% |
| Somchem MS200*² | 3.3 gr | 60% | 15,577 psi | 46% | 837 fps | 91.1% |
| Vihtavuori 3N37* | <<locked>> | 80% | 20,987 psi | 62% | 988 fps | 86.9% |
| Vihtavuori N310² | <<locked>> | 60% | 25,904 psi | 76% | 922 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 17,129 psi | 50% | 866 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 9,660 psi | 28% | 656 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 15,476 psi | 45% | 869 fps | 97.7% |
| Vihtavuori N340*² | <<locked>> | 60% | 14,446 psi | 42% | 820 fps | 88.9% |
| Vihtavuori N350* | <<locked>> | 84% | 20,117 psi | 59% | 968 fps | 86.5% |
| Winchester 231² | <<locked>> | 60% | 22,234 psi | 65% | 955 fps | 99.8% |
| Winchester 572*² | <<locked>> | 60% | 25,425 psi | 75% | 1053 fps | 88.8% |
| Winchester AutoComp *² | <<locked>> | 60% | 13,996 psi | 41% | 804 fps | 93.5% |
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 .356 | 125gr | X-TREME RN. ReloadSwiss RS 20 delivers the highest muzzle velocity at 1,135 fps; across all powders the maximum-charge window runs from 722 fps to 1,135 fps. Alliant Herco gives the best case fill at 100 %, and 40 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 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, Somchem MS200 rank at the top here: for 9 mm Para with the .356 | 125gr | 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.