Load Specifications
Load data in caliber 9 x 25 Dillon with .357 | 135gr | Speer HPSB GD bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Herco, Baschieri & Pellagri 102 Pistol and Vihtavuori N32C Tin Star.
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"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 68% | 29,675 psi | 82% | 1270 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 68% | 30,487 psi | 84% | 1184 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 76% | 32,343 psi | 89% | 1270 fps | 100% |
| ADI AP 100 | <<locked>> | 92% | 31,981 psi | 88% | 1385 fps | 96.7% |
| ADI APS 350² | <<locked>> | 68% | 31,821 psi | 88% | 1099 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 30,748 psi | 85% | 1119 fps | 100% |
| ADI AS 30² | <<locked>> | 68% | 29,399 psi | 81% | 1142 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 32,372 psi | 89% | 1227 fps | 100% |
| Alliant BE-86² | <<locked>> | 72% | 30,269 psi | 83% | 1234 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 64% | 29,878 psi | 82% | 1296 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 32,808 psi | 90% | 1237 fps | 100% |
| Alliant Herco | <<locked>> | 88% | 30,966 psi | 85% | 1319 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 76% | 32,285 psi | 89% | 1427 fps | 96.1% |
| Alliant RED DOT² | <<locked>> | 72% | 31,720 psi | 87% | 1191 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 76% | 32,576 psi | 90% | 1345 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 32,169 psi | 89% | 1217 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 30,545 psi | 84% | 1211 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 68% | 32,082 psi | 88% | 1240 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 32,779 psi | 90% | 1142 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 16,737 psi | 46% | 945 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 30,821 psi | 85% | 1260 fps | 100% |
| Lovex S020² | <<locked>> | 68% | 31,299 psi | 86% | 1289 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 29,820 psi | 82% | 1230 fps | 100% |
| Maxam CSB 2² | <<locked>> | 76% | 32,634 psi | 90% | 1270 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 31,111 psi | 86% | 1227 fps | 100% |
| Maxam CSB 4² | <<locked>> | 72% | 32,677 psi | 90% | 1224 fps | 100% |
| Maxam CSB 5² | <<locked>> | 64% | 30,139 psi | 83% | 1142 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 64% | 31,502 psi | 87% | 1240 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 15,331 psi | 42% | 948 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 76% | 30,980 psi | 85% | 1319 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 76% | 29,138 psi | 80% | 1368 fps | 89% |
| Rottweil P 806 | <<locked>> | 84% | 32,126 psi | 89% | 1453 fps | 99.4% |
| SNPE Vectan A0² | <<locked>> | 76% | 29,994 psi | 83% | 1266 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 30,661 psi | 85% | 1230 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 72% | 32,750 psi | 90% | 1280 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 64% | 31,604 psi | 87% | 1129 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 84% | 32,300 psi | 89% | 1355 fps | 99.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 72% | 32,358 psi | 89% | 1276 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 72% | 31,981 psi | 88% | 1430 fps | 97.4% |
| Somchem MP200² | <<locked>> | 68% | 30,139 psi | 83% | 1302 fps | 100% |
| Somchem MS200² | <<locked>> | 72% | 30,850 psi | 85% | 1289 fps | 100% |
| Somchem S221*² | <<locked>> | 64% | 29,834 psi | 82% | 1362 fps | 92.8% |
| Vihtavuori 3N37² | <<locked>> | 76% | 31,502 psi | 87% | 1362 fps | 99.8% |
| Vihtavuori 3N38* | <<locked>> | 92% | 31,923 psi | 88% | 1407 fps | 91.5% |
| Vihtavuori N105* | <<locked>> | 96% | 30,560 psi | 84% | 1447 fps | 94.9% |
| Vihtavuori N320² | <<locked>> | 68% | 31,705 psi | 87% | 1217 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 30,632 psi | 84% | 1135 fps | 100% |
| Vihtavuori N330² | <<locked>> | 68% | 31,343 psi | 86% | 1273 fps | 100% |
| Vihtavuori N340² | <<locked>> | 72% | 30,240 psi | 83% | 1283 fps | 100% |
| Vihtavuori N350 | <<locked>> | 80% | 29,907 psi | 82% | 1332 fps | 99.7% |
| Winchester AutoComp ² | <<locked>> | 76% | 31,647 psi | 87% | 1280 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 23,337 psi | 64% | 1165 fps | 99.6% |
| Accurate Solo 1000² | <<locked>> | 60% | 24,134 psi | 67% | 1093 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 21,031 psi | 58% | 1096 fps | 100% |
| ADI AP 100*² | <<locked>> | 68% | 17,027 psi | 47% | 1076 fps | 86.6% |
| ADI APS 350² | <<locked>> | 60% | 26,469 psi | 73% | 1027 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 25,063 psi | 69% | 1040 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 24,511 psi | 68% | 1070 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 25,875 psi | 71% | 1135 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 21,625 psi | 60% | 1102 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 26,760 psi | 74% | 1247 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 24,091 psi | 66% | 1109 fps | 100% |
| Alliant Herco² | 6 gr | 60% | 15,069 psi | 42% | 1004 fps | 97.8% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 19,624 psi | 54% | 1165 fps | 88.1% |
| Alliant RED DOT² | <<locked>> | 60% | 23,424 psi | 65% | 1070 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 20,842 psi | 57% | 1142 fps | 99.9% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 23,496 psi | 65% | 1093 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 5.7 gr | 60% | 15,040 psi | 41% | 951 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 25,179 psi | 69% | 1145 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 21,074 psi | 58% | 974 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,614 psi | 21% | 692 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 24,816 psi | 68% | 1171 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 24,294 psi | 67% | 1184 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 19,551 psi | 54% | 1063 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 21,422 psi | 59% | 1106 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 22,742 psi | 63% | 1099 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 23,801 psi | 66% | 1099 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 26,658 psi | 74% | 1096 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 28,297 psi | 78% | 1198 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 7,266 psi | 20% | 692 fps | 98.6% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 19,421 psi | 54% | 1125 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 72% | 26,179 psi | 72% | 1312 fps | 87.1% |
| Rottweil P 806*² | <<locked>> | 60% | 13,895 psi | 38% | 1060 fps | 87.8% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,696 psi | 54% | 1086 fps | 99.6% |
| SNPE Vectan A1² | <<locked>> | 60% | 24,439 psi | 67% | 1138 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 23,598 psi | 65% | 1142 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 28,239 psi | 78% | 1086 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 16,737 psi | 46% | 1047 fps | 92.4% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 22,945 psi | 63% | 1132 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 21,306 psi | 59% | 1224 fps | 91.8% |
| Somchem MP200² | <<locked>> | 60% | 24,062 psi | 66% | 1201 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 21,886 psi | 60% | 1138 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 26,353 psi | 73% | 1296 fps | 90.7% |
| Vihtavuori 3N37² | <<locked>> | 60% | 18,811 psi | 52% | 1122 fps | 95.2% |
| Vihtavuori 3N38* | <<locked>> | 80% | 22,989 psi | 63% | 1243 fps | 85.7% |
| Vihtavuori N105* | <<locked>> | 80% | 19,000 psi | 52% | 1201 fps | 86% |
| Vihtavuori N320² | <<locked>> | 60% | 25,788 psi | 71% | 1138 fps | 100% |
| Vihtavuori N32C Tin Star² | 4.4 gr | 60% | 12,995 psi | 36% | 846 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 24,279 psi | 67% | 1171 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 21,219 psi | 59% | 1132 fps | 100% |
| Vihtavuori N350*² | <<locked>> | 60% | 16,433 psi | 45% | 1063 fps | 93.7% |
| Winchester AutoComp ² | <<locked>> | 60% | 20,378 psi | 56% | 1099 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 51 powders for 9 x 25 Dillon loaded with the .357 | 135gr | Speer HPSB GD. Rottweil P 806 delivers the highest muzzle velocity at 1,453 fps; across all powders the maximum-charge window runs from 945 fps to 1,453 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 12 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (250 MPa), the top charges use 42–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N32C Tin Star 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. Alliant Herco, Baschieri & Pellagri 102 Pistol, Vihtavuori N32C Tin Star rank at the top here: for 9 x 25 Dillon with the .357 | 135gr | Speer HPSB GD 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 Solo 1000, Accurate Solo 1250, ADI AP 100 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.