Load Specifications
Load data in caliber 9 mm Para with .358 | 130gr | Rim Rock RNFP Cowboy bullet and 61 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>> | 80% | 28,747 psi | 84% | 1053 fps | 96.7% |
| Accurate No. 5*² | <<locked>> | 68% | 29,559 psi | 87% | 1122 fps | 89% |
| Accurate Solo 1000 | <<locked>> | 80% | 28,689 psi | 84% | 1004 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 88% | 28,137 psi | 83% | 1050 fps | 100% |
| ADI AP 70N² | <<locked>> | 76% | 29,733 psi | 87% | 1086 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 29,907 psi | 88% | 922 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 28,427 psi | 83% | 935 fps | 100% |
| ADI AS 30 | <<locked>> | 84% | 30,400 psi | 89% | 1004 fps | 100% |
| ADI AS 50N | <<locked>> | 80% | 29,863 psi | 88% | 1037 fps | 100% |
| Alliant BE-86 | <<locked>> | 88% | 29,080 psi | 85% | 1056 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 76% | 27,441 psi | 81% | 1076 fps | 98.9% |
| Alliant Green Dot | <<locked>> | 84% | 29,399 psi | 86% | 1033 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 25,135 psi | 74% | 1050 fps | 97.8% |
| Alliant RED DOT | <<locked>> | 88% | 30,574 psi | 90% | 1024 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 72% | 28,877 psi | 85% | 1099 fps | 98.8% |
| Alliant UNIQUE | <<locked>> | 92% | 30,023 psi | 88% | 1125 fps | 99.2% |
| Baschieri & Pellagri 100 | <<locked>> | 84% | 29,399 psi | 86% | 1020 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 24,845 psi | 73% | 991 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 80% | 29,109 psi | 85% | 1047 fps | 100% |
| Hodgdon CFE Pistol | <<locked>> | 88% | 30,734 psi | 90% | 1093 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 29,660 psi | 87% | 951 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 72% | 26,658 psi | 78% | 1070 fps | 89.7% |
| Hodgdon Longshot*² | <<locked>> | 72% | 29,602 psi | 87% | 1115 fps | 93.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 10,994 psi | 32% | 712 fps | 99.9% |
| Hodgdon Universal | <<locked>> | 84% | 29,733 psi | 87% | 1086 fps | 100% |
| Lovex D036*² | <<locked>> | 68% | 29,515 psi | 87% | 1119 fps | 88.9% |
| Lovex S011² | <<locked>> | 72% | 30,095 psi | 88% | 1043 fps | 100% |
| Lovex S020 | <<locked>> | 84% | 30,487 psi | 89% | 1099 fps | 99.9% |
| Maxam CSB 1 | <<locked>> | 92% | 28,834 psi | 85% | 1053 fps | 100% |
| Maxam CSB 2 | <<locked>> | 92% | 29,370 psi | 86% | 1086 fps | 100% |
| Maxam CSB 3 | <<locked>> | 88% | 29,646 psi | 87% | 1047 fps | 100% |
| Maxam CSB 4 | <<locked>> | 84% | 30,589 psi | 90% | 1040 fps | 100% |
| Maxam CSB 5² | <<locked>> | 76% | 28,123 psi | 83% | 974 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 76% | 30,603 psi | 90% | 1122 fps | 97.9% |
| Ramshot True Blue*² | <<locked>> | 68% | 28,108 psi | 82% | 1089 fps | 92.8% |
| Ramshot Zip² | <<locked>> | 64% | 29,762 psi | 87% | 1060 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 29,979 psi | 88% | 1079 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 9,558 psi | 28% | 689 fps | 96.4% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 30,110 psi | 88% | 1138 fps | 99.9% |
| Rottweil P 801² | <<locked>> | 72% | 28,311 psi | 83% | 1027 fps | 100% |
| Rottweil P 806*ᴾ | <<locked>> | 100% | 24,743 psi | 73% | 1145 fps | 89.4% |
| Shooters World Auto Pistol*² | <<locked>> | 68% | 29,515 psi | 87% | 1119 fps | 88.9% |
| SNPE Vectan A0 | <<locked>> | 92% | 29,472 psi | 86% | 1073 fps | 98.8% |
| SNPE Vectan A1 | <<locked>> | 80% | 28,776 psi | 84% | 1040 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 84% | 30,052 psi | 88% | 1063 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 28,413 psi | 83% | 938 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 29,718 psi | 87% | 1102 fps | 92.7% |
| SNPE Vectan BA9 1/2 | <<locked>> | 84% | 29,182 psi | 86% | 1066 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 88% | 28,877 psi | 85% | 1171 fps | 87.9% |
| Somchem MP200 | <<locked>> | 84% | 29,834 psi | 88% | 1106 fps | 98.3% |
| Somchem MS200 | <<locked>> | 88% | 29,269 psi | 86% | 1086 fps | 99.4% |
| Vihtavuori 3N37* | <<locked>> | 92% | 28,689 psi | 84% | 1115 fps | 93.6% |
| Vihtavuori N310² | <<locked>> | 64% | 29,051 psi | 85% | 955 fps | 100% |
| Vihtavuori N320 | <<locked>> | 80% | 28,718 psi | 84% | 1033 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 19,885 psi | 58% | 873 fps | 100% |
| Vihtavuori N330 | <<locked>> | 84% | 30,211 psi | 89% | 1099 fps | 100% |
| Vihtavuori N340 | <<locked>> | 88% | 29,240 psi | 86% | 1086 fps | 99% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 30,414 psi | 89% | 1135 fps | 94.6% |
| Winchester 231² | <<locked>> | 68% | 27,267 psi | 80% | 1030 fps | 100% |
| Winchester 572*² | <<locked>> | 64% | 29,936 psi | 88% | 1125 fps | 92.9% |
| Winchester AutoComp | <<locked>> | 92% | 30,269 psi | 89% | 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>> | 60% | 15,302 psi | 45% | 827 fps | 87.5% |
| Accurate No. 5*² | <<locked>> | 64% | 25,425 psi | 75% | 1056 fps | 86.3% |
| Accurate Solo 1000² | <<locked>> | 60% | 17,027 psi | 50% | 833 fps | 100% |
| Accurate Solo 1250*² | <<locked>> | 60% | 12,995 psi | 38% | 787 fps | 94.8% |
| ADI AP 70N² | <<locked>> | 60% | 18,782 psi | 55% | 919 fps | 99.2% |
| ADI APS 350² | <<locked>> | 60% | 20,059 psi | 59% | 804 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 18,463 psi | 54% | 807 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 16,926 psi | 50% | 817 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 18,159 psi | 53% | 869 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 13,285 psi | 39% | 801 fps | 97.5% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 17,796 psi | 52% | 909 fps | 94.1% |
| Alliant Green Dot² | <<locked>> | 60% | 16,027 psi | 47% | 830 fps | 100% |
| Alliant Herco*² | <<locked>> | 68% | 11,806 psi | 35% | 771 fps | 86.2% |
| Alliant RED DOT² | <<locked>> | 60% | 15,911 psi | 47% | 814 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 20,088 psi | 59% | 955 fps | 94.9% |
| Alliant UNIQUE*² | 3.4 gr | 60% | 13,242 psi | 39% | 814 fps | 88.2% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 15,011 psi | 44% | 807 fps | 99.4% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 9,210 psi | 27% | 692 fps | 96.6% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 15,969 psi | 47% | 856 fps | 99.9% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 14,373 psi | 42% | 823 fps | 95.6% |
| Hodgdon Clays² | <<locked>> | 60% | 15,461 psi | 45% | 758 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 68% | 23,815 psi | 70% | 1027 fps | 87.8% |
| Hodgdon Longshot*² | <<locked>> | 60% | 20,030 psi | 59% | 961 fps | 87.1% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 5,279 psi | 15% | 512 fps | 91.8% |
| Hodgdon Universal² | <<locked>> | 60% | 16,143 psi | 47% | 866 fps | 98% |
| Lovex D036*² | <<locked>> | 64% | 25,382 psi | 74% | 1056 fps | 86.3% |
| Lovex S011² | <<locked>> | 60% | 21,321 psi | 63% | 925 fps | 99.9% |
| Lovex S020*² | <<locked>> | 60% | 15,243 psi | 45% | 856 fps | 93.5% |
| Maxam CSB 1*² | <<locked>> | 60% | 12,546 psi | 37% | 771 fps | 94.4% |
| Maxam CSB 2² | <<locked>> | 60% | 12,256 psi | 36% | 804 fps | 98.6% |
| Maxam CSB 3² | <<locked>> | 60% | 14,576 psi | 43% | 814 fps | 99.2% |
| Maxam CSB 4² | <<locked>> | 60% | 16,505 psi | 48% | 840 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 19,116 psi | 56% | 856 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 18,695 psi | 55% | 932 fps | 91.5% |
| Ramshot True Blue*² | <<locked>> | 60% | 20,581 psi | 60% | 968 fps | 87.6% |
| Ramshot Zip² | <<locked>> | 60% | 26,092 psi | 77% | 1014 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 16,520 psi | 48% | 886 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 64% | 5,149 psi | 15% | 512 fps | 85.9% |
| ReloadSwiss RS 20*² | 3.5 gr | 60% | 11,400 psi | 33% | 778 fps | 87.6% |
| Rottweil P 801² | <<locked>> | 60% | 20,233 psi | 59% | 919 fps | 100% |
| Rottweil P 806* | <<locked>> | 96% | 21,248 psi | 62% | 1083 fps | 86.5% |
| Shooters World Auto Pistol*² | <<locked>> | 64% | 25,382 psi | 74% | 1056 fps | 86.3% |
| SNPE Vectan A0*² | <<locked>> | 60% | 13,126 psi | 39% | 778 fps | 87.7% |
| SNPE Vectan A1² | <<locked>> | 60% | 16,099 psi | 47% | 840 fps | 98.5% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 15,403 psi | 45% | 827 fps | 95.1% |
| SNPE Vectan BA10² | <<locked>> | 60% | 20,682 psi | 61% | 840 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 84% | 20,305 psi | 60% | 951 fps | 86.3% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 15,113 psi | 44% | 833 fps | 96.5% |
| SNPE Vectan SP 2* | <<locked>> | 84% | 25,672 psi | 75% | 1122 fps | 85.8% |
| Somchem MP200*² | <<locked>> | 60% | 15,621 psi | 46% | 860 fps | 89.5% |
| Somchem MS200*² | 3.4 gr | 60% | 14,127 psi | 41% | 814 fps | 90.7% |
| Vihtavuori 3N37*² | <<locked>> | 76% | 18,318 psi | 54% | 942 fps | 86% |
| Vihtavuori N310² | <<locked>> | 60% | 25,991 psi | 76% | 922 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 15,722 psi | 46% | 843 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 8,021 psi | 24% | 630 fps | 99.9% |
| Vihtavuori N330² | <<locked>> | 60% | 14,011 psi | 41% | 843 fps | 97.4% |
| Vihtavuori N340*² | <<locked>> | 60% | 12,966 psi | 38% | 794 fps | 88.3% |
| Vihtavuori N350* | <<locked>> | 80% | 17,506 psi | 51% | 922 fps | 85.5% |
| Winchester 231² | <<locked>> | 60% | 21,698 psi | 64% | 948 fps | 99.9% |
| Winchester 572*² | <<locked>> | 60% | 25,512 psi | 75% | 1060 fps | 90.4% |
| Winchester AutoComp *² | <<locked>> | 60% | 12,908 psi | 38% | 791 fps | 93.4% |
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 .358 | 130gr | Rim Rock RNFP Cowboy. ReloadSwiss RS 20 delivers the highest muzzle velocity at 1,138 fps; across all powders the maximum-charge window runs from 689 fps to 1,138 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 28–90 %, 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 .358 | 130gr | Rim Rock RNFP Cowboy they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, SNPE Vectan BA7 1/2, Vihtavuori 3N37, Vihtavuori N350 burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1250, ADI AS 30, Alliant BE-86 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.