Load Specifications
Load data in caliber 9 x 25 Dillon with .357 | 125gr | Speer JHP 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% | 30,443 psi | 84% | 1355 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 68% | 30,385 psi | 84% | 1257 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 76% | 32,256 psi | 89% | 1345 fps | 100% |
| ADI AP 100 | <<locked>> | 92% | 32,314 psi | 89% | 1463 fps | 96.2% |
| ADI APS 350² | <<locked>> | 68% | 32,343 psi | 89% | 1175 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 30,893 psi | 85% | 1188 fps | 100% |
| ADI AS 30² | <<locked>> | 68% | 29,646 psi | 82% | 1214 fps | 100% |
| ADI AS 50N² | <<locked>> | 68% | 32,097 psi | 89% | 1296 fps | 100% |
| Alliant BE-86² | <<locked>> | 72% | 30,530 psi | 84% | 1309 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 64% | 30,095 psi | 83% | 1375 fps | 100% |
| Alliant Green Dot² | <<locked>> | 72% | 32,445 psi | 89% | 1302 fps | 100% |
| Alliant Herco | <<locked>> | 88% | 30,734 psi | 85% | 1391 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 76% | 32,285 psi | 89% | 1503 fps | 95.5% |
| Alliant RED DOT² | <<locked>> | 72% | 31,821 psi | 88% | 1266 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 29,356 psi | 81% | 1371 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 72% | 32,358 psi | 89% | 1293 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 30,618 psi | 84% | 1283 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 68% | 32,126 psi | 89% | 1312 fps | 100% |
| Hodgdon Clays² | <<locked>> | 76% | 30,313 psi | 84% | 1178 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 16,955 psi | 47% | 1004 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 30,908 psi | 85% | 1339 fps | 100% |
| Lovex S020² | <<locked>> | 68% | 31,821 psi | 88% | 1371 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 30,501 psi | 84% | 1316 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 30,255 psi | 83% | 1312 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 30,647 psi | 85% | 1293 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 29,950 psi | 83% | 1260 fps | 100% |
| Maxam CSB 5² | <<locked>> | 64% | 30,342 psi | 84% | 1214 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 64% | 31,705 psi | 87% | 1316 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 15,505 psi | 43% | 1007 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 76% | 31,140 psi | 86% | 1398 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 76% | 29,718 psi | 82% | 1453 fps | 88.6% |
| Rottweil P 806 | <<locked>> | 84% | 32,750 psi | 90% | 1539 fps | 99.2% |
| SNPE Vectan A0² | <<locked>> | 76% | 30,342 psi | 84% | 1345 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 30,400 psi | 84% | 1299 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 29,486 psi | 81% | 1306 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 64% | 31,676 psi | 87% | 1198 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 84% | 32,764 psi | 90% | 1437 fps | 99.4% |
| SNPE Vectan BA9 1/2² | <<locked>> | 72% | 32,184 psi | 89% | 1352 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 72% | 32,430 psi | 89% | 1516 fps | 97% |
| Somchem MP200² | <<locked>> | 68% | 30,385 psi | 84% | 1381 fps | 100% |
| Somchem MS200² | <<locked>> | 72% | 30,603 psi | 84% | 1358 fps | 100% |
| Somchem S221*² | <<locked>> | 64% | 30,545 psi | 84% | 1447 fps | 92.4% |
| Vihtavuori 3N37² | <<locked>> | 76% | 31,531 psi | 87% | 1437 fps | 99.6% |
| Vihtavuori 3N38* | <<locked>> | 92% | 32,111 psi | 89% | 1490 fps | 90.9% |
| Vihtavuori N105* | <<locked>> | 96% | 30,632 psi | 84% | 1522 fps | 94.1% |
| Vihtavuori N320² | <<locked>> | 68% | 32,213 psi | 89% | 1299 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 31,299 psi | 86% | 1214 fps | 100% |
| Vihtavuori N330² | <<locked>> | 68% | 31,212 psi | 86% | 1345 fps | 100% |
| Vihtavuori N340² | <<locked>> | 72% | 30,603 psi | 84% | 1365 fps | 100% |
| Vihtavuori N350 | <<locked>> | 80% | 30,153 psi | 83% | 1411 fps | 99.5% |
| Winchester AutoComp ² | <<locked>> | 76% | 31,502 psi | 87% | 1352 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% | 23,076 psi | 64% | 1227 fps | 99.4% |
| Accurate Solo 1000² | <<locked>> | 60% | 24,482 psi | 68% | 1165 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 21,161 psi | 58% | 1161 fps | 100% |
| ADI AP 100*² | <<locked>> | 68% | 17,332 psi | 48% | 1138 fps | 86% |
| ADI APS 350² | <<locked>> | 60% | 26,542 psi | 73% | 1093 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 25,614 psi | 71% | 1112 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 24,366 psi | 67% | 1132 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 26,107 psi | 72% | 1207 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 21,321 psi | 59% | 1158 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 26,542 psi | 73% | 1312 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 23,728 psi | 65% | 1168 fps | 100% |
| Alliant Herco² | 6.6 gr | 60% | 15,476 psi | 43% | 1066 fps | 97.5% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 19,972 psi | 55% | 1237 fps | 87.4% |
| Alliant RED DOT² | <<locked>> | 60% | 23,366 psi | 64% | 1135 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 21,306 psi | 59% | 1217 fps | 99.8% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 23,583 psi | 65% | 1161 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 6.2 gr | 60% | 15,171 psi | 42% | 1010 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 25,208 psi | 70% | 1211 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 21,161 psi | 58% | 1037 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,702 psi | 21% | 738 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 24,743 psi | 68% | 1237 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 24,598 psi | 68% | 1257 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 19,682 psi | 54% | 1129 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 21,480 psi | 59% | 1171 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 22,307 psi | 62% | 1158 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 24,120 psi | 67% | 1168 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 27,166 psi | 75% | 1168 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 27,992 psi | 77% | 1263 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 7,339 psi | 20% | 735 fps | 98.3% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 19,247 psi | 53% | 1181 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 72% | 26,440 psi | 73% | 1385 fps | 86.3% |
| Rottweil P 806*² | <<locked>> | 60% | 14,257 psi | 39% | 1122 fps | 87% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,609 psi | 54% | 1145 fps | 99.4% |
| SNPE Vectan A1² | <<locked>> | 60% | 24,656 psi | 68% | 1207 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 23,844 psi | 66% | 1211 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 28,543 psi | 79% | 1155 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 16,766 psi | 46% | 1106 fps | 91.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 23,453 psi | 65% | 1211 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 21,886 psi | 60% | 1302 fps | 91.3% |
| Somchem MP200² | <<locked>> | 60% | 24,120 psi | 67% | 1266 fps | 99.9% |
| Somchem MS200² | <<locked>> | 60% | 21,770 psi | 60% | 1201 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 26,179 psi | 72% | 1362 fps | 89.8% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 19,203 psi | 53% | 1191 fps | 94.8% |
| Vihtavuori 3N38* | <<locked>> | 84% | 25,788 psi | 71% | 1365 fps | 86.9% |
| Vihtavuori N105* | <<locked>> | 84% | 21,582 psi | 60% | 1329 fps | 87.6% |
| Vihtavuori N320² | <<locked>> | 60% | 25,904 psi | 71% | 1207 fps | 100% |
| Vihtavuori N32C Tin Star² | 4.8 gr | 60% | 13,140 psi | 36% | 899 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 24,700 psi | 68% | 1243 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 21,524 psi | 59% | 1201 fps | 99.9% |
| Vihtavuori N350*² | <<locked>> | 60% | 16,563 psi | 46% | 1119 fps | 93% |
| Winchester AutoComp ² | <<locked>> | 60% | 20,581 psi | 57% | 1161 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 | 125gr | Speer JHP. Rottweil P 806 delivers the highest muzzle velocity at 1,539 fps; across all powders the maximum-charge window runs from 1,004 fps to 1,539 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 11 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 43–90 %, 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 | 125gr | Speer JHP 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. ADI APS 350, ADI APS 450, Alliant Herco 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.