Load Specifications
Load data in caliber 9 mm Mauser with .357 | 158gr | Hornady XTP bullet and 63 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Rottweil P 806, Vihtavuori 3N37 and Alliant UNIQUE.
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: 5.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 76% | 30,008 psi | 80% | 1056 fps | 100% |
| Accurate No. 5² | <<locked>> | 64% | 30,705 psi | 81% | 1138 fps | 96.5% |
| Accurate Solo 1000 | <<locked>> | 80% | 32,982 psi | 87% | 1014 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 88% | 34,055 psi | 90% | 1079 fps | 100% |
| ADI AP 100*ᴾ | <<locked>> | 100% | 29,153 psi | 77% | 1115 fps | 94.1% |
| ADI AP 70N² | <<locked>> | 72% | 33,141 psi | 88% | 1086 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 32,779 psi | 87% | 915 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 32,329 psi | 86% | 942 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 32,242 psi | 86% | 981 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 31,792 psi | 84% | 1017 fps | 100% |
| Alliant BE-86 | <<locked>> | 84% | 33,098 psi | 88% | 1063 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 76% | 33,025 psi | 88% | 1125 fps | 100% |
| Alliant Green Dot | <<locked>> | 80% | 31,314 psi | 83% | 1017 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 30,835 psi | 82% | 1109 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 88% | 33,605 psi | 89% | 1217 fps | 95.5% |
| Alliant RED DOT | <<locked>> | 84% | 34,055 psi | 90% | 1020 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 30,560 psi | 81% | 1099 fps | 100% |
| Alliant UNIQUE | <<locked>> | 88% | 33,301 psi | 88% | 1138 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 32,474 psi | 86% | 1014 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 31,082 psi | 82% | 1024 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 31,401 psi | 83% | 1033 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 33,475 psi | 89% | 951 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 72% | 33,156 psi | 88% | 1155 fps | 98.5% |
| Hodgdon Longshot² | <<locked>> | 68% | 33,156 psi | 88% | 1152 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 13,314 psi | 35% | 738 fps | 100% |
| Hodgdon Universal | <<locked>> | 80% | 33,141 psi | 88% | 1086 fps | 100% |
| Lovex D036² | <<locked>> | 64% | 30,661 psi | 81% | 1138 fps | 96.4% |
| Lovex S011² | <<locked>> | 68% | 31,604 psi | 84% | 1027 fps | 100% |
| Lovex S020 | <<locked>> | 80% | 33,823 psi | 90% | 1106 fps | 100% |
| Maxam CSB 1 | <<locked>> | 88% | 31,850 psi | 84% | 1053 fps | 100% |
| Maxam CSB 2 | <<locked>> | 88% | 33,518 psi | 89% | 1083 fps | 100% |
| Maxam CSB 3 | <<locked>> | 84% | 32,866 psi | 87% | 1043 fps | 100% |
| Maxam CSB 4 | <<locked>> | 80% | 32,518 psi | 86% | 1020 fps | 100% |
| Maxam CSB 5² | <<locked>> | 76% | 33,083 psi | 88% | 981 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 72% | 33,199 psi | 88% | 1135 fps | 100% |
| Ramshot True Blue² | <<locked>> | 68% | 33,736 psi | 89% | 1155 fps | 99.5% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 30,298 psi | 80% | 1033 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 11,647 psi | 31% | 728 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 88% | 32,416 psi | 86% | 1132 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 88% | 30,980 psi | 82% | 1171 fps | 88.3% |
| Rottweil P 801² | <<locked>> | 68% | 30,835 psi | 82% | 1010 fps | 100% |
| Rottweil P 806 | <<locked>> | 96% | 31,212 psi | 83% | 1234 fps | 98.9% |
| Shooters World Auto Pistol² | <<locked>> | 64% | 30,661 psi | 81% | 1138 fps | 96.4% |
| SNPE Vectan A0 | <<locked>> | 88% | 32,010 psi | 85% | 1079 fps | 100% |
| SNPE Vectan A1 | <<locked>> | 80% | 33,562 psi | 89% | 1060 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 80% | 32,503 psi | 86% | 1063 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 32,329 psi | 86% | 942 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 96% | 33,953 psi | 90% | 1148 fps | 99.2% |
| SNPE Vectan BA9 1/2 | <<locked>> | 80% | 30,922 psi | 82% | 1053 fps | 100% |
| SNPE Vectan SP 2 | <<locked>> | 84% | 33,591 psi | 89% | 1230 fps | 97.2% |
| Somchem MP200 | <<locked>> | 80% | 32,576 psi | 86% | 1119 fps | 100% |
| Somchem MS200 | <<locked>> | 84% | 32,097 psi | 85% | 1093 fps | 100% |
| Somchem S221*² | <<locked>> | 76% | 33,141 psi | 88% | 1181 fps | 92.7% |
| Vihtavuori 3N37 | <<locked>> | 88% | 32,547 psi | 86% | 1155 fps | 99.5% |
| Vihtavuori 3N38*ᴾ | <<locked>> | 100% | 28,268 psi | 75% | 1129 fps | 87.7% |
| Vihtavuori N105*ᴾ | <<locked>> | 100% | 23,003 psi | 61% | 1096 fps | 88.4% |
| Vihtavuori N320² | <<locked>> | 76% | 31,067 psi | 82% | 1014 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 24,033 psi | 64% | 883 fps | 100% |
| Vihtavuori N330 | <<locked>> | 80% | 34,040 psi | 90% | 1096 fps | 100% |
| Vihtavuori N340 | <<locked>> | 84% | 32,184 psi | 85% | 1096 fps | 100% |
| Vihtavuori N350 | <<locked>> | 92% | 30,676 psi | 81% | 1129 fps | 99.4% |
| Winchester 231² | <<locked>> | 68% | 32,677 psi | 87% | 1056 fps | 100% |
| Winchester AutoComp | <<locked>> | 88% | 32,909 psi | 87% | 1086 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 5.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 18,565 psi | 49% | 892 fps | 97.2% |
| Accurate No. 5*² | <<locked>> | 60% | 26,643 psi | 71% | 1083 fps | 94.7% |
| Accurate Solo 1000² | <<locked>> | 60% | 19,725 psi | 52% | 853 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 16,360 psi | 43% | 846 fps | 100% |
| ADI AP 100* | <<locked>> | 80% | 18,231 psi | 48% | 932 fps | 86.5% |
| ADI AP 70N² | <<locked>> | 60% | 23,815 psi | 63% | 974 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 23,061 psi | 61% | 810 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 22,220 psi | 59% | 830 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 19,914 psi | 53% | 833 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 21,089 psi | 56% | 886 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 16,360 psi | 43% | 846 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 21,495 psi | 57% | 968 fps | 99.9% |
| Alliant Green Dot² | <<locked>> | 60% | 19,841 psi | 53% | 869 fps | 100% |
| Alliant Herco*² | <<locked>> | 60% | 12,067 psi | 32% | 778 fps | 94.3% |
| Alliant POWER PISTOL*² | <<locked>> | 68% | 19,566 psi | 52% | 988 fps | 86.9% |
| Alliant RED DOT² | <<locked>> | 60% | 19,058 psi | 51% | 837 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 23,801 psi | 63% | 1007 fps | 100% |
| Alliant UNIQUE² | 3.8 gr | 60% | 16,447 psi | 44% | 886 fps | 98% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 18,608 psi | 49% | 846 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 11,240 psi | 30% | 735 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 19,667 psi | 52% | 896 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 18,014 psi | 48% | 771 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 60% | 22,553 psi | 60% | 1007 fps | 94.5% |
| Hodgdon Longshot² | <<locked>> | 60% | 24,976 psi | 66% | 1043 fps | 97.3% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 6,309 psi | 17% | 548 fps | 99.3% |
| Hodgdon Universal² | <<locked>> | 60% | 19,885 psi | 53% | 915 fps | 100% |
| Lovex D036*² | <<locked>> | 60% | 26,629 psi | 71% | 1079 fps | 94.7% |
| Lovex S011² | <<locked>> | 60% | 25,295 psi | 67% | 955 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 18,927 psi | 50% | 915 fps | 99.9% |
| Maxam CSB 1² | <<locked>> | 60% | 15,708 psi | 42% | 830 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 16,186 psi | 43% | 860 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 18,202 psi | 48% | 860 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 19,435 psi | 52% | 863 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 22,466 psi | 60% | 866 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 22,843 psi | 61% | 997 fps | 99.2% |
| Ramshot True Blue² | <<locked>> | 60% | 25,469 psi | 68% | 1047 fps | 97.5% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 21,176 psi | 56% | 925 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 5,787 psi | 15% | 535 fps | 95.5% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 14,199 psi | 38% | 853 fps | 98.4% |
| ReloadSwiss RS 24* | <<locked>> | 84% | 27,151 psi | 72% | 1115 fps | 86.1% |
| Rottweil P 801² | <<locked>> | 60% | 24,889 psi | 66% | 945 fps | 100% |
| Rottweil P 806*² | 6.6 gr | 68% | 11,893 psi | 32% | 879 fps | 85.1% |
| Shooters World Auto Pistol*² | <<locked>> | 60% | 26,629 psi | 71% | 1079 fps | 94.7% |
| SNPE Vectan A0² | <<locked>> | 60% | 15,171 psi | 40% | 823 fps | 96.8% |
| SNPE Vectan A1² | <<locked>> | 60% | 20,030 psi | 53% | 892 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 19,218 psi | 51% | 889 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 24,569 psi | 65% | 860 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 12,966 psi | 34% | 794 fps | 86.5% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 18,492 psi | 49% | 886 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 64% | 17,796 psi | 47% | 978 fps | 87.9% |
| Somchem MP200² | <<locked>> | 60% | 18,724 psi | 50% | 919 fps | 98.3% |
| Somchem MS200² | <<locked>> | 60% | 17,158 psi | 46% | 876 fps | 98.9% |
| Somchem S221*² | <<locked>> | 64% | 22,452 psi | 60% | 1020 fps | 86.3% |
| Vihtavuori 3N37*² | 4.6 gr | 60% | 14,373 psi | 38% | 856 fps | 90.1% |
| Vihtavuori 3N38* | <<locked>> | 96% | 25,498 psi | 68% | 1086 fps | 85.9% |
| Vihtavuori N105* | <<locked>> | 96% | 20,653 psi | 55% | 1050 fps | 86.1% |
| Vihtavuori N320² | <<locked>> | 60% | 20,030 psi | 53% | 883 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 10,240 psi | 27% | 666 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 17,898 psi | 47% | 899 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 16,041 psi | 43% | 860 fps | 98% |
| Vihtavuori N350*² | <<locked>> | 60% | 12,415 psi | 33% | 804 fps | 87.9% |
| Winchester 231² | <<locked>> | 60% | 25,599 psi | 68% | 978 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 15,708 psi | 42% | 846 fps | 99.8% |
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 63 powders for 9 mm Mauser loaded with the .357 | 158gr | Hornady XTP. Rottweil P 806 delivers the highest muzzle velocity at 1,234 fps; across all powders the maximum-charge window runs from 728 fps to 1,234 fps. ADI AP 100 gives the best case fill at 100 %, and 40 of the 63 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (260 MPa), the top charges use 31–90 %, leaving at least 10 % headroom. ADI AP 100, Alliant Herco, Baschieri & Pellagri 102 Pistol 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. Rottweil P 806, Vihtavuori 3N37, Alliant UNIQUE rank at the top here: for 9 mm Mauser with the .357 | 158gr | Hornady XTP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AP 100, ReloadSwiss RS 24, Somchem S221 burn incompletely and react more sensitively to barrel length and temperature. Accurate No. 2, Accurate No. 5, Accurate Solo 1000 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.