Load Specifications
Load data in caliber 9 mm Mauser with .357 | 158gr | Geco FMJ FLAT NOSE 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 N350 and SNPE Vectan BA7 1/2.
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% | 32,024 psi | 85% | 1099 fps | 100% |
| Accurate No. 5² | <<locked>> | 64% | 32,648 psi | 87% | 1184 fps | 97.6% |
| Accurate Solo 1000 | <<locked>> | 80% | 33,982 psi | 90% | 1040 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 84% | 33,344 psi | 88% | 1086 fps | 100% |
| ADI AP 100ᴾ | <<locked>> | 100% | 30,821 psi | 82% | 1158 fps | 95.5% |
| ADI AP 70N² | <<locked>> | 68% | 31,502 psi | 84% | 1083 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 31,459 psi | 83% | 915 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 33,504 psi | 89% | 968 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 33,547 psi | 89% | 1010 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 32,880 psi | 87% | 1043 fps | 100% |
| Alliant BE-86 | <<locked>> | 80% | 31,024 psi | 82% | 1060 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 72% | 31,328 psi | 83% | 1122 fps | 100% |
| Alliant Green Dot | <<locked>> | 80% | 33,649 psi | 89% | 1056 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 32,982 psi | 87% | 1148 fps | 100% |
| Alliant POWER PISTOL | <<locked>> | 84% | 32,329 psi | 86% | 1217 fps | 95.6% |
| Alliant RED DOT | <<locked>> | 80% | 32,648 psi | 87% | 1020 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 32,445 psi | 86% | 1138 fps | 100% |
| Alliant UNIQUE | <<locked>> | 84% | 32,590 psi | 86% | 1148 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 33,330 psi | 88% | 1037 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 32,416 psi | 86% | 1050 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 33,286 psi | 88% | 1066 fps | 100% |
| Hodgdon Clays | <<locked>> | 84% | 31,894 psi | 85% | 951 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 68% | 30,719 psi | 81% | 1145 fps | 98.4% |
| Hodgdon Longshot² | <<locked>> | 64% | 29,762 psi | 79% | 1129 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 13,706 psi | 36% | 755 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 31,502 psi | 84% | 1083 fps | 100% |
| Lovex D036² | <<locked>> | 64% | 32,590 psi | 86% | 1181 fps | 97.6% |
| Lovex S011² | <<locked>> | 68% | 32,532 psi | 86% | 1050 fps | 100% |
| Lovex S020² | <<locked>> | 76% | 31,734 psi | 84% | 1099 fps | 100% |
| Maxam CSB 1 | <<locked>> | 88% | 33,721 psi | 89% | 1086 fps | 100% |
| Maxam CSB 2 | <<locked>> | 84% | 33,083 psi | 88% | 1089 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 31,212 psi | 83% | 1040 fps | 100% |
| Maxam CSB 4 | <<locked>> | 80% | 33,591 psi | 89% | 1047 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 31,647 psi | 84% | 981 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 68% | 31,053 psi | 82% | 1129 fps | 100% |
| Ramshot True Blue² | <<locked>> | 64% | 31,328 psi | 83% | 1145 fps | 99.4% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 31,415 psi | 83% | 1060 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 12,618 psi | 33% | 761 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 88% | 34,026 psi | 90% | 1161 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 88% | 33,286 psi | 88% | 1224 fps | 90.4% |
| Rottweil P 801² | <<locked>> | 68% | 33,098 psi | 88% | 1047 fps | 100% |
| Rottweil P 806 | <<locked>> | 96% | 33,214 psi | 88% | 1273 fps | 99.5% |
| Shooters World Auto Pistol² | <<locked>> | 64% | 32,590 psi | 86% | 1181 fps | 97.6% |
| SNPE Vectan A0 | <<locked>> | 88% | 33,431 psi | 89% | 1112 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 76% | 31,618 psi | 84% | 1053 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 80% | 33,968 psi | 90% | 1093 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 33,489 psi | 89% | 968 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 92% | 32,430 psi | 86% | 1148 fps | 99.3% |
| SNPE Vectan BA9 1/2 | <<locked>> | 80% | 32,750 psi | 87% | 1089 fps | 100% |
| SNPE Vectan SP 2 | <<locked>> | 80% | 31,183 psi | 83% | 1217 fps | 96.9% |
| Somchem MP200² | <<locked>> | 76% | 31,749 psi | 84% | 1129 fps | 100% |
| Somchem MS200 | <<locked>> | 84% | 33,692 psi | 89% | 1129 fps | 100% |
| Somchem S221*² | <<locked>> | 72% | 31,488 psi | 84% | 1181 fps | 92.7% |
| Vihtavuori 3N37 | <<locked>> | 84% | 31,270 psi | 83% | 1158 fps | 99.6% |
| Vihtavuori 3N38*ᴾ | <<locked>> | 100% | 30,560 psi | 81% | 1178 fps | 89.9% |
| Vihtavuori N105*ᴾ | <<locked>> | 100% | 25,092 psi | 67% | 1152 fps | 91% |
| Vihtavuori N320² | <<locked>> | 76% | 33,591 psi | 89% | 1053 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 26,049 psi | 69% | 915 fps | 100% |
| Vihtavuori N330² | <<locked>> | 76% | 32,082 psi | 85% | 1093 fps | 100% |
| Vihtavuori N340 | <<locked>> | 84% | 33,779 psi | 90% | 1132 fps | 100% |
| Vihtavuori N350 | <<locked>> | 92% | 32,924 psi | 87% | 1171 fps | 99.8% |
| Winchester 231² | <<locked>> | 64% | 30,922 psi | 82% | 1053 fps | 100% |
| Winchester AutoComp | <<locked>> | 84% | 31,952 psi | 85% | 1093 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% | 19,566 psi | 52% | 925 fps | 98.2% |
| Accurate No. 5² | <<locked>> | 60% | 28,601 psi | 76% | 1129 fps | 96.2% |
| Accurate Solo 1000² | <<locked>> | 60% | 21,176 psi | 56% | 886 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 17,521 psi | 46% | 879 fps | 100% |
| ADI AP 100*² | <<locked>> | 76% | 17,303 psi | 46% | 928 fps | 86.4% |
| ADI AP 70N² | <<locked>> | 60% | 24,947 psi | 66% | 1004 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 23,699 psi | 63% | 830 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 22,640 psi | 60% | 846 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 20,523 psi | 54% | 856 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 22,524 psi | 60% | 919 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 17,260 psi | 46% | 876 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 22,626 psi | 60% | 1001 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 20,247 psi | 54% | 889 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 12,314 psi | 33% | 797 fps | 95.2% |
| Alliant POWER PISTOL*² | <<locked>> | 64% | 17,927 psi | 48% | 968 fps | 86.1% |
| Alliant RED DOT² | <<locked>> | 60% | 19,711 psi | 52% | 860 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 24,758 psi | 66% | 1037 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 16,737 psi | 44% | 902 fps | 98.5% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 19,899 psi | 53% | 879 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 12,154 psi | 32% | 764 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 20,885 psi | 55% | 922 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 18,536 psi | 49% | 791 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 23,583 psi | 63% | 1040 fps | 95.7% |
| Hodgdon Longshot² | <<locked>> | 60% | 26,049 psi | 69% | 1079 fps | 98.2% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 6,425 psi | 17% | 558 fps | 99.6% |
| Hodgdon Universal² | <<locked>> | 60% | 20,204 psi | 54% | 932 fps | 100% |
| Lovex D036² | <<locked>> | 60% | 28,631 psi | 76% | 1129 fps | 96.2% |
| Lovex S011² | <<locked>> | 60% | 26,411 psi | 70% | 981 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 19,957 psi | 53% | 945 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 16,056 psi | 43% | 846 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 16,679 psi | 44% | 879 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 18,608 psi | 49% | 876 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 19,914 psi | 53% | 879 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 23,003 psi | 61% | 886 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 24,308 psi | 64% | 1037 fps | 99.7% |
| Ramshot True Blue² | <<locked>> | 60% | 27,441 psi | 73% | 1093 fps | 98.6% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 22,524 psi | 60% | 955 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 6,237 psi | 17% | 561 fps | 96.9% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 15,084 psi | 40% | 886 fps | 99.2% |
| ReloadSwiss RS 24* | <<locked>> | 80% | 25,947 psi | 69% | 1115 fps | 86.1% |
| Rottweil P 801² | <<locked>> | 60% | 26,107 psi | 69% | 971 fps | 100% |
| Rottweil P 806*² | 7.1 gr | 68% | 13,053 psi | 35% | 922 fps | 87.7% |
| Shooters World Auto Pistol² | <<locked>> | 60% | 28,631 psi | 76% | 1129 fps | 96.2% |
| SNPE Vectan A0² | <<locked>> | 60% | 16,085 psi | 43% | 856 fps | 97.9% |
| SNPE Vectan A1² | <<locked>> | 60% | 20,885 psi | 55% | 919 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 20,088 psi | 53% | 919 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 24,845 psi | 66% | 876 fps | 100% |
| SNPE Vectan BA7 1/2*² | 4.6 gr | 60% | 13,532 psi | 36% | 820 fps | 88.1% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 19,566 psi | 52% | 915 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 16,375 psi | 43% | 958 fps | 87% |
| Somchem MP200² | <<locked>> | 60% | 19,522 psi | 52% | 948 fps | 98.9% |
| Somchem MS200² | <<locked>> | 60% | 18,144 psi | 48% | 906 fps | 99.5% |
| Somchem S221*² | <<locked>> | 60% | 21,103 psi | 56% | 1014 fps | 86% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 15,026 psi | 40% | 883 fps | 91.6% |
| Vihtavuori 3N38* | <<locked>> | 92% | 24,308 psi | 64% | 1086 fps | 86% |
| Vihtavuori N105* | <<locked>> | 92% | 19,754 psi | 52% | 1050 fps | 86.3% |
| Vihtavuori N320² | <<locked>> | 60% | 21,480 psi | 57% | 915 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 10,805 psi | 29% | 686 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 19,116 psi | 51% | 928 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 17,013 psi | 45% | 892 fps | 98.8% |
| Vihtavuori N350*² | 4.5 gr | 60% | 13,053 psi | 35% | 833 fps | 89.6% |
| Winchester 231² | <<locked>> | 60% | 27,572 psi | 73% | 1014 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 16,520 psi | 44% | 873 fps | 100% |
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 | Geco FMJ FLAT NOSE. Rottweil P 806 delivers the highest muzzle velocity at 1,273 fps; across all powders the maximum-charge window runs from 755 fps to 1,273 fps. ADI AP 100 gives the best case fill at 100 %, and 35 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 33–90 %, 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 N350, SNPE Vectan BA7 1/2 rank at the top here: for 9 mm Mauser with the .357 | 158gr | Geco FMJ FLAT NOSE they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ReloadSwiss RS 24, Somchem S221, Vihtavuori 3N38 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.